web-development

[rustic pebble]

Java applets

[zealous siren]

but at my company, we have a ton of APIs and web pages powered by Java backends

applets, what year is it?

[quick cargo]

One of our sites runs off Clojure

😫

[zealous siren]

🤮

my company LOVES Java

in fact, one small group in my division writes their microservices all in Java, rest of our group uses .Net Core

[gusty girder]

wait im kind of confused here

[rustic pebble]

.NET is nice

[gusty girder]

so learning web development with python and java is bad?

[zealous siren]

javascript != java

[quick cargo]

^

[zealous siren]

web development is broken into two pieces, frontend which is code that runs in browser, the backend which is run on the server

[gusty girder]

oh ok

[zealous siren]

frontend is all HTML/CSS/Javascript

[rustic pebble]

Kind of

[gusty girder]

and what are the backend options?

[rustic pebble]

many

[zealous siren]

backend can be whatever you want to be, Java, Javascript, .Net, Python, Rust, Go to name a few

[rustic pebble]

Every major language has an http framework

[gusty girder]

so is python good for this

[rustic pebble]

final?

[zealous siren]

can be, yes

[gusty girder]

is it meant for web development?

[quick cargo]

its used ALOT

[zealous siren]

meant for, no, acceptable choice, yes

[quick cargo]

things like instagram, dropbox etc... all use python backends

[gusty girder]

ive to look for a web development course on udemy or something else

[rustic pebble]

things like instagram, dropbox etc... all use python backends
@quick cargo instragram uses node probably

[zealous siren]

all major companies backends are probably in smattering of languages

[quick cargo]

Instagram runs on Django

[zealous siren]

depending on which group designed that microservice(s)

which is why you develop HTTP Microservices, then you don't have to give a crap about what a backend is written in

[rustic pebble]

@quick cargo wow didn't know that

[zealous siren]

like Discord uses both go/rust for backends

and I think python for some stuff too

[quick cargo]

i dont think they use go anymore

[rustic pebble]

I think discord has developed some of its backend on c++

Not sure

[quick cargo]

last time they used Rust and Elixer

[zealous siren]

CF8, I'm sure they haven't convert 100% to Rust

apparently you work in corporate, you know how that goes

we will get to that microservice, you know, at some point

[quick cargo]

tbf its like some banks still using languages from 20 years ago or more

[zealous siren]

like we still have microservices we haven't converted from .Net Frameowrk -> .Net Core

[rustic pebble]

COBOL

[quick cargo]

yeah lol

[gusty girder]

netflix runs on flask

[zealous siren]

and java

[rustic pebble]

react + clustered node is bae

[gusty girder]

thanks a lot guys all my doubts have been cleared

[zealous siren]

if you are learning, Javascript is not bad language to start with

[gusty girder]

The Social Network inspired me on checking out web development

[zealous siren]

you can use it as both frontend and backend (shudder)

[gusty girder]

yeah sure im planning on learning js

after some time

[rustic pebble]

Javascript is not really beginner friendly it has a c-like syntax and loads of moving parts

[gusty girder]

as i have finished the python basics and stuff

[zealous siren]

Sure but after you get over it, it's swiss tool box web language

[gusty girder]

so wont it be crazy to start js another language immediately

[rustic pebble]

Yea

I never properly watched a tutorial on javascript

I legit picked it up after learning python immediately

[zealous siren]

Sure, it's harder then python, but for web, I'd say if you wanted to learn a language, it's pretty much mandatory

[rustic pebble]

and then I just expanded upon it

[zealous siren]

esp with whole "Full stack developer" trend going down

aka, let's get 2 for price of 1

[gusty girder]

huh

[rustic pebble]

Just learn react-node and you can call yourself a fullstack dev

[gusty girder]

flask is based on python right

[quick cargo]

flask is python lol

[gusty girder]

so what do you guys think

when should i start learning another language

[rustic pebble]

Once you need it

One thing brings the other

When you get into the whole web development world you will need to learn the rest so you will be physically challenged to do so

[gusty girder]

kay

[native tide]

@gusty girder what do you exactly mean?

[gusty girder]

huh?

[native tide]

What languages do you already know?

@gusty girder

[gusty girder]

just python

and a small bit of java

[native tide]

So after you learned python what area did you specialize in?

[gusty girder]

well somehow i stumbled upon discordpy bots

and spent some time on that

then i thought of building apps

[native tide]

Well I guess that counts as machine learn and AI

[gusty girder]

and tried learning kivy

built a really simple app which i have to convert to an apk

[native tide]

Err not gonna lie man your kind of all over the place 😬

[gusty girder]

ikr

im like totally 💥

[native tide]

Are you like very good in at least one of those areas?

Like good enough to make a whole YT tutorial on it

[gusty girder]

then ig interested in web dev and planned to make a personal website

[native tide]

Woah man let’s take it easy for a second 😅

[gusty girder]

im like multitasking lol

[native tide]

Be careful with that

[gusty girder]

like when i learn one thing i discover another thing and get interested on that

[native tide]

Normally people who multitask and try and learn 5 things at once don’t tend to do so well

[gusty girder]

ik

[native tide]

Unless of course you learn well like that

[gusty girder]

i just cant seem to stay and finish off one thing

recently i saw The Social Network and got interested in web development

[native tide]

That’s one thing a LOT of programmers say is the worst thing you can do

You should try and learn at least ONE thing and get very good at it after that you can move on

It’s almost like learning an instrument

[gusty girder]

kay

[native tide]

If I start playing trumpet and get into it

But then I find another instrument let’s say the sax

You start leave the trumpet for the sax

But then you leave the sax for the Clairinet

You get the point

[gusty girder]

yeah

exactly what im doing 😅

[native tide]

But if you keep doing that you’ll never learn how to play one song on any instruments

Same thing goes with programming

I was like you before but thankfully I saw a video about biggest mistake a programmer make and I learned I should stick to on thing

So if you keep doing that with programming you’ll never learn how to create one program in any of the areas

[gusty girder]

yeah

[native tide]

I used to do the same thing when I was in 4th grade

[gusty girder]

wow you started coding in 4th?!

[native tide]

Yeah

I’m in 8th now

[gusty girder]

due

dude

same here!!!

[native tide]

I learned 4 programming languages throughout middle school

Oh dang someone that”s actually my age 😂😂

[gusty girder]

i just finished 8th

im 14 actually

[native tide]

I’m turnings 14 this year

[gusty girder]

Oh dang someone that”s actually my age 😂😂
ikr finally someone my age

[native tide]

Wait we should talk about this in #ot0-fear-of-python general

[gusty girder]

ok

[fickle fox]

hey guys is there a way to limit user like that he cant see some buttons or texts?

[tired root]

Use permission levels

[cold anchor]

What’s the JavaScript code?

[tired root]

I am trying to ignore a block when parsing a file with python-markdown. Anyone got an idea? I have tried writing an extension, but if I just echo the block back, markdown garbles it later.

If I parse with the other tool first, which puts out html, then markdown puts that inside a <pre> tag

@opal kelp It probably sends it twice due to your if logic

if (!data.error and data.title) will probably fix it

It is also bound to document click

why not just bind it to the click function of the button?

onlick='function()'

I also wouldn't use jquery.. write JS not jquery

[cold anchor]

why did you wrap the whole thing on a document.click?

don't need that

[tired root]

...

[cold anchor]

here's a resource to help substitute jquery functions for vanilla js http://youmightnotneedjquery.com/

also jQuery is totally valid and tons of websites use it, there's no shame in using it

change $(document).click(... to $(document).ready(...

right now you're binding your event handler to the form every time the document is clicked

so if you click the page 5 times, you'll send 5 requests when you click "submit"

[tired root]

no, bind it to the button

[cold anchor]

almost, but you can change your submit handler back to $('#form_register').on('submit', ... to make sure you catch any way that the form is submitted

no, you need the form

and add the ID to the form, not the submit button

just have 1 $(document).ready(... call and put everything in there, and make sure your different forms have different IDs

[gusty girder]

hi

which django tutorial is better?

teluskos or coreys

in youtube

??

[hollow lark]

Doesn't matter

Just start coding

[gusty girder]

im planning on buying a course from udemy

python and django full stack web developer

it teaches how to use javascript,html,css,jquery and python

what do you guys think?

[hollow lark]

That's good

You can build a lot of sites with that

But jQuery is getting outdated, you're better off learning React

https://www.udemy.com/course/the-complete-web-developer-zero-to-mastery/

Here's a much better learning route

[gusty girder]

but then that doesnt teach django

[hollow lark]

You don't need Django or Python

You can write server side code with JavaScript

1.) You won't have to learn two languages
2.) NodeJs is more powerful and used more in the industry (from my experience)

[gusty girder]

kay

[hollow lark]

I forgot this is a Python sever LOL. My bad everyone.
But still, learn Nodejs

[rustic pebble]

Web developmen channel is not strictly limited to python frameworks

[gusty girder]

thanks this course has many more reviews than the previous one

[vagrant jackal]

Hey guys, I'm learning django and have something that I can't solve, maybe someone could help me 😀
So, I started my studies with the "Python crash course 2nd edition" book, and one of the projects are a little learning log, where you can add topics and entries...
So, if you enter topics/ it shows all the topics, and then you can select one of them and add some entry
I'm improving the code a little bit, I already put a sidebar, and now im struggling in one thing
I want to show the topics in that sidebar, which I already did with this code in my view

def index(request):
"""The home page for Learning Log."""
topics = Topic.objects.filter(owner=request.user).order_by('date_added')
context = {'topics': topics}
return render(request, 'learning_logs/index.html', context)

But there is a problem, if I go to the page topics/1 (for example, topic 1), then the topics doesnt appear anymore in the sidebar, because the view index was not triggered instead the topic view is... I dont want to put this same line of code " topics = Topic.objects.filter(owner=request.user).order_by('date_added') " in all my views.

There's another way of doing this? Thanks!

In my base.html I have this to show the topics

{% for topic in topics %}
<li>
<a href="{% url 'learning_logs:topic' topic.id %}">{{ topic }}</a>
</li>
{% empty %}
<li>No topics have been added yet.</li>
{% endfor %}

[native tide]

Can anyone suggest any use cases where Flask is preferred over Django

I am learning Falsk instead of Django, I have a hunch it's the right oneand better but both have their own uses

[snow sierra]

Flask is a like Startapp application and gateway from backend to front.. django is a more functionaly, powerful framework..
my advice to you is Learn flask, it is easy and understandable 🙂 in future you can easily move to django 🙂

QUESTION:
i have api based json lists,.. i want save each item to my local DB...

def index(request):
profile_id = 12345
profile_api = 'xS12POxJeUQkLweR6huob'
r = requests.get(f"https://aexample.com/user/{profile_id}?&key={profile_api} ")
rdata = r.json()
return render(request, 'tp_template/tp_profile.html')

if we use print (rdata['name']) in console printed profile name. everythong works fine...

just want this profile name and other data from API store to my local DB ..

[ornate dew]

Hey

I want to start a new project where I make a chat application using sockets

What python module should I use to make the UI

or should I even use python

for the UI

I'm down to learn Javascript just for this , but is it worth it ? Or can I make a nice UI with Python

[native tide]

@ornate dew If you're making a chat application, then yeah you'd have to use javascript, unless you'd want people to refresh the page to see new messages (bad design). You could still have Flask or Django run the application on the backend.

[ornate dew]

Ok

Which one is better , flask or django?

for the backend

[quasi ridge]

impossible to answer

that's like saying "is a Miata better than a panel truck"

[ornate dew]

Ahahah okay

[quasi ridge]

flask's big advantage is that it's kinda small and simple

[ornate dew]

I'll go with flask then

[native tide]

both of them are excellent, it all depends on what you want to do. flask comes with a lot less and you have to explictly define more stuff. django comes with a bunch more and has a bit more of a learning curve, but has a "batteries included" approach so much of what you need is already included

[quasi ridge]

django's advantage is that has a lot of handy stuff built in , particularly if you're using a SQL database

[native tide]

yep

it comes with its own ORM

[ornate dew]

😮

I'm planning on using mySQL

for login and chat history

[native tide]

at the same time though, flask has flask-sqlalchemy which isn't hard to use (I've done multiple projects with both)

[ornate dew]

cant I just use a cursor

[native tide]

if you know how to use one, it doesn't take much effort to learn the other

[ornate dew]

for SQL

[native tide]

I never worked on that low of a level for what I've done, but I think you can do that with any orm

they just give you an abstraction layer to treat tables as classes, rows as objects, and columns as attributes/properties, bringing OOP into it

[ornate dew]

ooh

[native tide]

yes its another thing to learn, but once you get it you can do stuff much faster and simpler

you can even give the models methods, just like a normal object would have

[native tide]

I have a question regarding aggregating ORM data for visualization and 'condensing' events. I'm keeping track of API calls to a django server, and every request becomes its own object internally, recording multiple things about it but most importantly in this context- the time it was received. All of this data will be kept for some period, and then automatically purged after a month. My question comes in two different pieces:

1. How could I visualize this data, through something like matplotlib? The graph would take the total number of API requests in 15 minute periods, and then aggregate that data into a graph. And of course, there would be different views for hourly/daily. Is this something built in or that exists somewhere?

2. Even after the objects are deleted to conserve space, there should be some lower resolution form of the analytics data left over for historical reference. Again, does anything exist that does this?

Making this functionality wouldn't be a problem, but I'm just asking to see if anything like this already exists just so I'm not needlessly spending time reinventing the wheel. The data visualization/analysis aspect of web dev work is completely new to me, any input would be appreciated. If this question is better suited for #data-science-and-ml I move it there instead. Thanks.

[gusty girder]

is using js better than using python for backend web dev

[lapis charm]

Hi can anyone help me with an error in my server

414 Request-URI Too Large

i get this when i try to load a page which has large number of data passed to it using get

[peak thicket]

In aiohttp after starting a web server, is there a way to remove the:

======== Running on http://0.0.0.0:8080 ========
(Press CTRL+C to quit)

or not?

[young crane]

In Flask, is it possible to do something where I have the website path localhost:5000/dashboard. Going to that page will show a list of options that are always changing (never static data on this page) that you can select. Ltes say that there are 3 items. A, B, and C.
A has a value of 1000
B has a value of 217
C has a value of 9887

If I click on A it would go to the link localhost:5000/dashboard/1000
B would go to localhost:5000/dashboard/217
C goes to localhost:5000/dashboard/9887

They all load the same base template, but they all get data from my database. The data will vary between each value (1000, 217, 9887)

@app.route("/dashboard/????")
def pageView():
  return render("baseFile.html", data=MyDatabaseLookup(????))

Because the data on the page will always be changing I cant just hardcode it like

@app.route("/dashboard/217")
def pageView():
  return render("baseFile.html", data=MyDatabaseLookup(217))

Please ping me if you can help 🙂

Or ping me if this is not possible to let me know

[remote anchor]

Hey, everybody! I've been trying to develop an application to list all hrefs in a webpage.

For some reason I am able to get all hrefs from the interpreter, but not from running the script. I have no idea and I'm stumped. Tried troubleshooting.

I'm working with the Selenium module in Python. In the interpreter I set up a variable

links = driver.find_elements_by_id("IDNAME")
for elm in links:
print(elm.get_attribute("href"))

^ this prints all of the links in the interpreter, but if I run a script with the same code, nothing is printed and the application ends.

Anyone know what's going on?

[cinder juniper]

Hey @remote anchor can you update your nickname according to our nickname policy seen in #rules it just needs to be mentionable

[remote anchor]

@cinder juniper name updated

[cinder juniper]

Thanks, although you just needed to set a nickname for the server. Didn't have to change your discord name

[remote anchor]

@cinder juniper Good to know for next time. Thanks for bringing it to my awareness

[cinder juniper]

What do you mean when "running the script" how are you doing that?

[remote anchor]

python ./scriptname.py
^contains the same code that I run in the interpreter, but does not print href links. The python ./scriptname.py ends without printing links unlike the interpreter running the same code

[cinder juniper]

If you add a print('Test') to the top, does that print out?

[remote anchor]

@cinder juniper Correct

[cinder juniper]

Hmm, if that is printing but not the rest then I'm really not sure. If there's no errors then really it should be working

[remote anchor]

i know, right 😦

[cinder juniper]

I haven't worked with Selenium so idk if it could be because of that

[remote anchor]

Thank you for trying to help, @cinder juniper

[native tide]

If i wanted to add input validation to my website, would i put the code client side or server side?

[fickle fox]

hey guys, i was wondering is there way to show some buttons only to certainpeople, like menages with role system?

in flask

[ornate zodiac]

could somebody help me with html? (basics)

I need this

to be like this

<ul class="zakupy">
<ol start="5">
<ol type="I">

 <li>chleb</li>
 <li>mleko</li>
 <li>maslo</li>
 <li>szynka</li>
 <li>ser zolty</li>
 <li>dzem</li>
 <li>cukier</li>

</ul>

<style>
ol.zakupy {
list-style: upper-roman;
}
</style>

[cloud path]

hey guys

the upload of a picture with flask doesn't work

am i doing wrong?

if form.validate_on_submit():
        if form.picture.data:
            picture_name = secure_filename(form.picture.data.filename)
            file_path = os.path.join(app.root_path, 'static/profile_pics', picture_name)
            form.picture.data.save(file_path)
            current_user.image_file = picture_name
        current_user.email = form.email.data
        db.session.commit()
        return redirect(url_for('account'))

[gilded monolith]

@fickle fox probably you can modify the jinja template if an user is logged in, have some permission or an attribute that you define

[nimble epoch]

@cloud path instead use this

if form.picture.data:
pic = form.picture.data
pic.save(“static/pictures/” + secure_filename(pic.filename))
user.picture = pic.filename

This might work

[cloud path]

thanks for your reply, but nothing it still doesn't work :/

[gilded monolith]

something like: {% if current_user.is_authenticated %} your buttons things {% endif %}

[cloud path]

it no gives me error

but nothing appears

[gilded monolith]

id perform the checks also in the views because im paranoid

[nimble epoch]

This works well but have you used enctype in the form tag?

[cloud path]

yes i have

and this is my flask form:

class UpdateAccountForm(FlaskForm):
    email = StringField('Email', validators=[DataRequired(), Email()])
    picture = FileField('Carica l\'immagine di profilo', validators=[FileAllowed(['png','jpg'])])
    submit = SubmitField('Aggiorna')

    def validate_email(self, email):
        if email.data != current_user.email:
            user = Account.query.filter_by(email=email.data).first()
            if user is not None:
                raise ValidationError("Email già utilizzata.")

[nimble epoch]

Use your form.picture.data in a separate variable because once i used it like form.picture.data.filename it gave me and error

Try it like

var = form.picture.data

[cloud path]

alright (y) i'm trying, i'll let you know

[nimble epoch]

Ok

And of course be sure that the file is jpg or png type

[cloud path]

yeah it is

maybe instead of form.picture.data, is it form.picture.file?

[nimble epoch]

No to access the form data from the inputs in flaskform the data is tru

[cloud path]

alright

btw i tried like that

if form.picture.data:
            pic = form.picture.data
            picname = secure_filename(pic.filename)
            pic.save("static/profile_pics/" + picname)
            current_user.image_file = picname

[nimble epoch]

If its an html form we use request.form[“var”]

[cloud path]

but still nothing

[fickle fox]

Ooh okay i will try it

[nimble epoch]

Ok ok

[cloud path]

i'll try to do other things thanks anyway

[nimble epoch]

Yw

[gilded monolith]

@fickle fox dunno if that's best practice but it's what i use to show buttons in a navbar to registered users

[cold anchor]

I'm saving files locally with this and it's working:

saved_filename = f"{str(uuid.uuid4())}_{filename}"
fpath = os.path.join(current_app.config['UPLOADS_DIR'], saved_filename)
upload_file.save(fpath)

and my UPLOADS_DIR is defined like this:
UPLOADS_DIR = os.path.join(APP_DIR, 'static', 'uploads')

APP_DIR = os.path.abspath(os.path.dirname(__file__)) # This directory

[fickle fox]

oooh, I am trying to make 'forum' with possibility for moderators to move posts to different sections, to edit and delete posts, and things like that, and i dont want other users to have that option as well

[cloud path]

@cold anchor thanks for sharing, i'll try like that too

[cold anchor]

if that doesn't work for you I can share the full view & model code

[gilded monolith]

Probably Flask have an extension for permission or you can use pass a boolean to the view

I think you still need to check if an user can or cannot do something, because you would only show/dont show the button, but they would still be able to do the action by crafting themselves a request

Someone more versed in this than me can probably chip in

[cold anchor]

I have an app that does this hold on I can get some sample code

# myapp/views.py
...
from myapp.auth import super_admin_required

...

@blueprint.route("/private")
@super_admin_required
def do_private_logic():
    # protected logic here
    return {'status': 'ok'}
...

# myapp/auth.py
from functools import wraps

from flask import current_app, abort
from flask_login import current_user


super_admin_roles = set([
    'sadmin',
    'uadmin',
])


def super_admin_required(f):
    @wraps(f)
    def decorated_function(*args, **kwargs):
        if not current_user.is_authenticated:
            abort(401)
        if current_user.role not in super_admin_roles:
            # TODO: 403
            abort(401)
        return f(*args, **kwargs)
    return decorated_function

# app.py
...
@app.errorhandler(401)
def render_401():
    # another option could be to redirect to an allowed page
    # return redirect(url_for('app.public'))
    return render_template('401.html')

then just add a "role" column to your users that contains a string

[vague vigil]

Following up from my azure deployment issues yesterday. I gave GCP a try to see if it was maybe a platform issue. Total time on the back end to perform the operation was 3-4 seconds, total time for client to send then receive was 16.9 seconds. This is down from 22 seconds on Azure, but up from 3 seconds locally.

[rustic pebble]

network bottleneck maybe?

[cold anchor]

can you click on that request in the network table and check the "timings" breakdown of it?

[vague vigil]

Cool- I didn't realize that was a thing!

[cold anchor]

nice!

so the "waiting" amount of time lines up with what you're seeing on the server, then

and the content download is fast

it might be worth looking up what the "request sent" means in chrome to help nail down where it's hitting the bottleneck

[vague vigil]

Sounds great, thanks both of yall!

[rustic pebble]

I think the request sent is the time a promise takes to resolve since all requests are promises

[vague vigil]

lol, from Chrome: https://developers.google.com/web/tools/chrome-devtools/network/reference#timing-explanation

[rustic pebble]

I am guessing it might be a network bottleneck then

Try running from another device, maybe using data connection

It also might be that promise thing

What is the request body?

[vague vigil]

I'm sending an image and receiving back a small json object with text and coordinates of where that text is located on the image.

[rustic pebble]

Since you are sending an image an upload might take time

[vague vigil]

brb

[rustic pebble]

Here is a resolution I can recommend you, although not sure how much it can reduce the time it takes to upload it: Convert the image to base64 and send it as a plain string, then decode it server side and get the image object

[cold anchor]

what is the content-length value in the request headers for that request?

[vague vigil]

sorry about the delay - I had a meeting. I'm going to do a little more reading on headers and then I'll have that info for you

[cold anchor]

it's in the "headers" tab of that request, near the "timings" tab

[cold anchor]

21mb transfer over 14 seconds is just under 2mb/s upload speed

so it seems like it's just a slow connection

[vague vigil]

So does this mean that my browser (client, right?) is sending the entire image back to the server?
As in client -image-> server -image-> google_vision -results-> server -results->client?

If so, then the solution would be to send the coordinates (4 x,y points) to the back end, have it send the image (like it is already doing) to google_vision, then return the results

[zealous siren]

yea, connection is slow

[twilit zenith]

    <h3>Recent Vouches</h3>
    {% for vouch in vouches %}
      <h2>Author : {{ vouch['author'] }}</h2>
      <h2>Member : {{ vouch['member'] }}</h2>
      <h3>Vouch Value : {{ vouch['value'] }}</h3>
      <p>Comment : {{ vouch['comment'] }}</p>
    {% endfor %}

at first when i run flask app it displays everything

but when i refresh page documents disappear completly

https://prnt.sc/sfggb0

i am using mongodb/pymongo

am i doing something wrong?

profiles = collection.find().sort('_id', pymongo.DESCENDING)
vouches = collection2.find().sort('_id', pymongo.DESCENDING)

@app.route("/", methods=['GET'])
@app.route("/home", methods=['GET'])
def home():
    return render_template('index.html', profiles=profiles, vouches=vouches)


if __name__ == '__main__':
    app.run(debug=True)

[fresh dock]

@twilit zenith i'm not super familiar with pymongo but I think I know the problem. i'm guessing collection.find().sort() is a generator function, which can only be iterated over once. Therefore, defining it at the top means it's a one-shot and done

put lines 1 and 2 inside def home

[fickle fox]

guuys i am trying to make registration form

is this good or would you change something?

def registrate():
    render_template('register.html')
    if request.method == 'POST':
        name = request.form['nickname']
        email = request.form['mail']
        passwords = request.form['pw']
        submitpw = request.form['rpw']
        ph = PasswordHasher()
        hash = ph.hash(passwords)
        if ph.verify(hash, submitpw) is True:
            new_user = Users(
                            name=name,
                            mail=email,
                            pw=hash)
            db.session.add(new_user)
            db.session.commit()
        else:
            print('Try again')
    else:
        redirect('register')```

[warm spire]

can i specify user agent, content type/length etc as data in a post request?

[fresh dock]

add a honeypot field to the form

an <input> that is hidden with css so a human user should never fill it out

name it something like "email-confirm"

then if you get data in that field you know it's a bad request and you should abort(418)

[tired root]

can i specify user agent, content type/length etc as data in a post request?
@warm spire That can be edited, do what @fresh dock said

[fickle fox]

ooh i never heard for honeypot

[fresh dock]

418 is "I'm a teapot" but I like to use it as a "no fuck you" error code

[tired root]

The correct return if you encounter a bot is 403 forbidden though, but I'd just send a 200 OK to throw the bot off

[fickle fox]

i ll google it thanks 😄

weird now i dont see inputs at other pages

yeah idk why tho i cant see input fields

[tired root]

did you hide all inputs?

you need to make an extra css class

[fickle fox]

i have different fields in different html pages, is there a way to select them?

wait exstra css class?

i cant see them in an older page

[tired root]

If you write something like css input[type=text]{ display: none; }that applies to all inputs

.email-confirm{
  display: none;
}```

[fickle fox]

is that done with wtf flask fields?

[tired root]

in css...

[fickle fox]

ohh will check it now

[fresh dock]

you'd have

<input id="email-confirm" name="email_confirm">

in the html

then

in css

input#email-confirm {display:none}

@tired root @fickle fox ^

[tired root]

if you do with a class or id makes no difference in this case

[fickle fox]

@app.route("/registrate", methods=['GET', 'POST'])
def registrate():
    if request.method == 'POST':
        name = request.form['nickname']
        email = request.form['mail']
        passwords = request.form['pw']
        submitpw = request.form['rpw']
        ph = PasswordHasher()
        hash = ph.hash(passwords)
        if ph.verify(hash, submitpw) is True:
            new_user = Users(
                            name=name,
                            mail=email,
                            pw=hash)
            db.session.add(new_user)
            db.session.commit()
            return redirect('/posts')
        else:
            render_template('/registrate')
    else:
        redirect('register')

<form class='formm' action='/registrate' method='POST'>
    <input id="nickname" type="text">
    <br/>
    <input id='mail' type='email'>
    <br/>
    <input id='pw' type="password">
    <br/>
    <input id='rpw' type='password'>
    <br/>
    <input id='sbm' type='submit'>
</form>```

i cant load /registrate page

and its doing something with code at other sides

idk what would be wrong

this is error

[cold anchor]

you're not returning in the last redirect and render_template calls

[fickle fox]

ooh wait wait

oh now its good

thanks

[native tide]

So it doesn't look like digitalocean allows you to register a domain name. Who should I use? The only other site that I know of is GoDaddy

[tired root]

A service that allows you to edit your DNS entries

and that is located in your country is probably a good consideration as well

Example: if you own a trademark and are located in the EU, a registered domain in the US won't do you any good if your trademark is not worlwide

someone could register the tm in the US and snatch the domain from you

other way around applies too

Probably not an issue for you right now, but can if the project is successful

@native tide

[native tide]

Hi there, is there any way for a Django parent template to always have a variable? My navbar shows a number next to notifications (just like facebook). I could wire it through every view but I feel like there is a better way. Thank you.

@tired root I'm US-based and might site will be also

[native tide]

Someone recommended namecheap so maybe I'll try that

[native tide]

Leaving this example here to show you what not to do.

html

<span class="spanny" style="some-prop:10px;">This is very spanny text</span>

css

span {
  some-prop: 10px;
}

span.spanny {
  some-prop: 10px;  
}

[molten quarry]

Spent the last 4 hours trying to figure out why
{% if user.username == model_object.owner %}
wouldn't evaluate to true. They both printed the same username.

Turns out I was comparing a string with a user object, but the __str__ made me think it was a string. Just needed to compare 2 objects...

{% if user == model_object.owner %}

Wasted half my day

[wild thunder]

guys, see if you understand this error:
werkzeug.routing.BuildError: Could not build url for endpoint 'edit_post'. Did you forget to specify values ['id']?

my .py script:

@app.route('/news/edit/<int:id>', methods=['GET', 'POST'])
def edit_post(id):
    post = BlogPost.query.get_or_404(id)
    form = Post()

    if request.method == 'POST':
        if form.validate_on_submit():
            post.title = form.title.data
            post.author = form.author.data
            post.content = form.content.data

    elif request.method == 'GET':
        return render_template('edit_post.html', post=post, form=form)

my .html file:

    {% block content %}
    <div class="container">
        <form method="POST" action="{{ url_for('edit_post') }}">
            <h1>Edit Post : {{post.id}}</h1>
                {{ form.csrf_token }}
                {{ wtf.form_field(form.title) }}
                {{ wtf.form_field(form.author) }}
                {{ wtf.form_field(form.content) }}
            <input type="submit" value="submit">
        </form>
    </div>
    {% endblock %}

[molten quarry]

I'm really new to Django, but in my forms, I've been directing the action attribute to url routes, not to view functions.

I can't read all your code, but it looks to me like you're directing it to the function. Though you have that @app.route line and I'm not knowledgeable enough to know what that does.

[quasi ridge]

url_for is supposed to take a view function, and return ... the url for it 🙂

[onyx crane]

the thing gets created like this:

{% if message.tags == 'error'%}
            <script>M.toast({html: "{{message}}", classes: 'blue-grey darken-2', displayLength: 3000});</script>
        {% endif %}

[sleek mortar]

i have a couple of /api routes. i want my /api route only accessible by post requests but i dont wanna go change every decorator to methods=["POST"]. is there a cleaner way to do it?
i use flask

[amber moat]

settings-bundle.js:1 
Failed to load resource: net::ERR_FILE_NOT_FOUND urlbar-bundle.js:1 
Failed to load resource: net::ERR_FILE_NOT_FOUND components-bundle.js:1 
Failed to load resource: net::ERR_FILE_NOT_FOUND background-common-bundle.js:1 Uncaught TypeError: Cannot read property 'getUILanguage' of undefined
    at Object.<anonymous> (background-common-bundle.js:1)
    at r (bundle.js:1)
    at Object.<anonymous> (background-common-bundle.js:1)
    at r (bundle.js:1)
    at Object.<anonymous> (bundle.js:1)
    at r (bundle.js:1)
    at Object.<anonymous> (bundle.js:1)
    at r (bundle.js:1)
    at Module.<anonymous> (bundle.js:1)
    at Module.<anonymous> (bundle.js:1)
browser.html:1 Not allowed to load local resource: chrome://vivaldi-data/css-mods/css
DevTools failed to load SourceMap: Could not load content for chrome-extension://odbfpeeihdkbihmopkbjmoonfanlbfcl/sourcemaps/contentscript.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME

when opening an HTML resource of vivaldi

[amber moat]

Vivaldi is an electron app

[amber storm]

Anyone know is the twitter API allows an app to tweet on the behalf of a user?

I am using the python-twitter library

[viral sphinx]

Hey guys for Django, idk why but I can’t seem to get updates on MySQL workbench when my website is on production

Do we have to make migrations after we deploy the app even though we can done it locally(but to a remote database, a the configurations are the same during deployment)

Have done it locally ****

[wild thunder]

hey guys, self explanatory issue in my image:

i'm using bs

i tried 'pull-right'

but no result

[ornate dew]

Hello

so i'm done with the backend for my messaging app

but for the front end

I dont know what to do

I cant use css

I dont understand it

is there a way to get a quick UI

easily?

[native tide]

@ornate dew perhaps bootstrap? https://getbootstrap.com/

its about as easy as it gets

plenty of themes available for it as well https://bootswatch.com/

[ornate dew]

Oh

thank you

[native tide]

I use it all the time, including right now lol

its good

[ornate dew]

There are themes I can just snatch right away?

[native tide]

yes

go on bootswatch, and you'll see links for the css. you can either get it from a CDN, or download it locally

[ornate dew]

do I need to dl bootstrap?

[native tide]

you don't have to download it locally, just depending on what you're doing its sometimes the better option. like I have a web app running on a raspberry pi in my room and the css is local; if the internet ever went down the application would have no css. that kind of thing

in most use cases you can just use the link. I think twitter runs/funds the CDN

[ornate dew]

My web app will run on my Cloud Server

[native tide]

then yeah, just linking to it would be the best choice

[ornate dew]

using <link></link>

?

im dogshit at front end html stuff

lmao

[native tide]

you dont have to include the css from the bootstrap website btw. if you're using a theme, it contains all of the css. just saying lol

np lol, we all started there

don't know offhand exactly, let me check fast

[ornate dew]

okok

[native tide]

<link href="http://somewebsite.com/style.css" rel="stylesheet">

I think the bootswatch website actually has the code too...

[ornate dew]

Ok

[native tide]

no I was wrong, but here is the site with the link you'll want: https://www.bootstrapcdn.com/bootswatch/

so just choose the one you want on bootswatch, plug the link in to the <head> and bingo bango

if you're new to bootstrap I'd go over the components and how layouts work (not hard) https://getbootstrap.com/docs/4.3/components/alerts/

anyway I threw enough at you I think lol

[ornate dew]

One last thing

I have these html elements

<ul id="messages"></ul>
<input type="text" id="myMessage">
<button id="sendbutton">Send</button>

How do I change their position

in the page

[native tide]

thats where the bootstrap components come in

[ornate dew]

I added the link

it changed colors and stuff

[native tide]

in your case, I'd look at the card, and form pages

it will get you started

[ornate dew]

Ok

[native tide]

theres a lot of templates to use so you dont have to reinvent the wheel generally

some hate it some love it... but its a pretty opinionated framework

[ornate dew]

I agree with you, I'm not gonna waste time on front end

so bootstrap is ❤️

[native tide]

if you just want it to work and dont mind a simple interface, yeah its perfect

I'll never stop using it

[ornate dew]

If I want to use css

in an html

file

how do I do it

rn

it just pops

oh i got it

its style

[native tide]

if you want to use the css elements, its pretty much all classes

[gusty sage]

hello is anyone here into web scraping using beautiful soup and requests?

[slender adder]

@gusty sage Won't say I'm 'into it' but I've used it for work.

[balmy knoll]

here is the part of the html?

[native tide]

@gusty sage y did quiet a bit of scraping

[native tide]

Do any one know email verification in flask

[cold anchor]

Like confirming that the user owns the email they signed up with?

[native tide]

@cold anchor yes

[cold anchor]

do you already have a way to send emails from your server?

[native tide]

Hmm I'm using sendgrid because port 25 is blocked in gcp

[elfin tinsel]

I don't know if the cat is right

I am asking here.

I am making a discord bot using Flask

[cold anchor]

make a token for a user in your db then send it to the user's email and ask them to click a button to verify which is a link that takes them to your server with the token you made for them

[native tide]

Oh then can I also create a var in db as ‘is_verified=True/False‘

[elfin tinsel]

Hello

[pliant falcon]

Hey guys.. there is a limit of using JS with django? or django is open to work with all javascript methods?

[obsidian prawn]

can someone teach me python

i know c#

LOGICsteveXD.say "see"

lol

[elfin tinsel]

I am getting this error

Running on http://127.0.0.1:5000 (CTRL + C to quit)
[2020-05-13 20:05:46,471] Running on 127.0.0.1:5000 over http (CTRL + C to quit)
[2020-05-13 20:05:49,235] ERROR in app: Exception on request GET /
Traceback (most recent call last):
  File "F:\Python Discord\lib\site-packages\quart\app.py", line 1807, in handle_request
    return await self.full_dispatch_request(request_context)
  File "F:\Python Discord\lib\site-packages\quart\app.py", line 1829, in full_dispatch_request
    result = await self.handle_user_exception(error)
  File "F:\Python Discord\lib\site-packages\quart\app.py", line 1074, in handle_user_exception
    raise error
  File "F:\Python Discord\lib\site-packages\quart\app.py", line 1827, in full_dispatch_request
    result = await self.dispatch_request(request_context)
  File "F:\Python Discord\lib\site-packages\quart\app.py", line 1875, in dispatch_request
    return await handler(**request_.view_args)
  File "F:\Python Discord\lib\site-packages\quart\utils.py", line 70, in _wrapper
    result = await loop.run_in_executor(
  File "F:\Python 3.8.2 (x64)\lib\concurrent\futures\thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "F:/PyCharm Python Works/OpenCityBot/Bot/bot.py", line 71, in hello
    return "Hello from {}".format(bot.user.name)
AttributeError: 'NoneType' object has no attribute 'name'
Executing <Task pending name='Task-15' coro=<ASGIHTTPConnection.handle_request() running at F:\Python Discord\lib\site-packages\quart\asgi.py:78> wait_for=<Future pending cb=[<TaskWakeupMethWrapper object at 0x000002186495A160>()] created at F:\Python 3.8.2 (x64)\lib\asyncio\base_events.py:422> cb=[_wait.<locals>._on_completion() at F:\Python 3.8.2 (x64)\lib\asyncio\tasks.py:507] created at F:\Python Discord\lib\site-packages\quart\asgi.py:26> took 0.156 seconds
[2020-05-13 20:05:49,393] 127.0.0.1:62021 GET / 1.1 500 29031 167003

my_presence_per_day.start()
add_guild_to_json.start()
app.run(host="127.0.0.1", port=5000, debug=True, use_reloader=False, loop=bot.loop)
bot.run(TOKEN)

Please help

[vagrant adder]

That's happening because your bot.user is None

And None object doesn't have .name attribute

Make an if statement that tests whether bot.user is None or not

[zealous siren]

are you trying to mix flask and Python?

[fickle fox]

def registrate():
    render_template('register.html')
    if request.method == 'POST':
        name = request.form['nm']
        email = request.form['mail']
        passwords = request.form['pw']
        submitpw = request.form['rpw']
        ph = PasswordHasher()
        hash = ph.hash(passwords)
        if ph.verify(hash, submitpw) is True:
            new_user = Users(
                            name=name,
                            mail=email,
                            pw=hash)
            db.session.add(new_user)
            db.session.commit()
            return "registrovani"
        elif ph.verify(hash, submitpw) is False:
            return render_template('register.html')
        else:
            return 'Site crashed, reload it and try again'
    else:
        return render_template('register.html')```

guys i am trying to reddirect user if hashed pw and submited one doesnt match, but its conttstantly giving me error

how can i fix it

maybe to do with js pop up msg or something

but firstly to fix this

[cold anchor]

what's the error?

[fickle fox]

argon2.exceptions.VerifyMismatchError: The password does not match the supplied hash

[cold anchor]

I'm confused why you're going through the trouble of hashing both of them if you just want to verify that they match

why not if passwords != submitpw:

[fickle fox]

ooh thanks

btw how does google value sites privacy?

u see that pop up block

[cold anchor]

you're not using https, which is fine in development

you can just ignore it

[fickle fox]

ooh okay

[ionic plover]

Does anyone know if it's possible to route and render Pelican through a Flask development server or am I just going about this wrong?

and just use the pelican development server

[tired root]

@ionic plover What is Pelican?

[ionic plover]

It's a static website generator.

[tired root]

Doesn't make much sense then

Why deliver static html through a dynamic system,?

Just set up nginx or apache and you are good

Or asked differently: What do you expect flask to do with the html?

[ionic plover]

Yeah like I got Pelican set up with a theme and all to create a blog website but I thought I could get it running through a flask developement server to serve the website to display on the web browser.

[tired root]

If you need a plain html quick server, python -m http.server on the directory you want to serve

[zealous siren]

or just grab Nginx container, throw your JS/HTML into there and set it loose

[native tide]

Is this the best place to talk about hosting services?

cuz i want to know if Netlify is actually that good

What are the pros and cons of Netlify?

[tired root]

@zealous siren Totally overblown

For a bunch of html files on a local pc the built-in python http server is more than enough

[zealous siren]

Depends if it’s local or not

And if you have container support already

[native tide]

ok

[lavish prism]

Asking good questions will yield a much higher chance of a quick response:

• Don't ask to ask your question, just go ahead and tell us your problem.
• Don't ask if anyone is knowledgeable in some area, filtering serves no purpose.
• Try to solve the problem on your own first, we're not going to write code for you.
• Show us the code you've tried and any errors or unexpected results it's giving.
• Be patient while we're helping you.

You can find a much more detailed explanation on our website.

[gritty quail]

Hi, I am studying Information Technology in Brazil, but in my country there is not much content about programming language. I was wondering if you can send me pdfs of books that have great content on programming languages, especially if it is focused on html / css and C #announcements

[tired root]

We are not doing piracy here

!resources

[lavish prism]

Resources

The Resources page on our website contains a list of hand-selected learning resources that we regularly recommend to both beginners and experts.

https://pythondiscord.com/pages/resources

[tired root]

here are some tutorials and stuff

[gritty quail]

So give me a good book

[tired root]

entitled much?

[gritty quail]

indicate some tutorials on youtube as well if you can, whatever you can to help. Thank you

[tired root]

I gave you a link with lots of tutorials, but we are not giving you books

[gritty quail]

Yes, I understand

Now, where are the links?

[tired root]

https://pythondiscord.com/pages/resources

[gritty quail]

do you have links that teach html / css or c #?

[native tide]

I can't figure out what am I supposed to do. I am using DRF and I want to access some endpoint but show different result if a user created that resource and another result if some other user is accessing it. I'm using Session Authentication.

I can't figure out what am I supposed to do. I am using DRF and I want to access some endpoint but show different result if a user created that resource and another result if some other user is accessing it. I'm using Session Authentication.

[tired root]

Do you have google?

I mean, seriously, it is ok to ask for help, but you need to show some initiative as well

I gave you our collection of resources, read it, pick something and learn

This is a python discord, if you want to learn C#, this isn't the place

[gritty quail]

Yes, but you who program longer may know of a better option so that I don't waste time on unnecessary sites

If you don't want to help, I'll wait until someone with empathy helps me. Thank you

[native tide]

I cant comment about C#, but with HTML and CSS... It's been a very long time since I learned the basics of HTML, so its kind of difficult for me to think of a good modern resource. The main thing I can say is to make sure you're learning from an updated source.

https://developer.mozilla.org/en-US/docs/Learn/HTML

I would recommend mozilla docs for just about anything frontend webdev related. They will really be the authority on most things.

https://www.w3schools.com/

If you're looking for something that is less, "dive into the documentation", this site is pretty good for most frontend things as well, though Id avoid it for JS lessons tbh.

mainly because it will set you on a path to writing outdated JS.

[fickle fox]

Is it possible to run flask server and python codes from phone?

[toxic marten]

i searched on google and finded that http://neilkarwasra.blogspot.com/2017/08/how-to-install-and-run-python-flask-web_15.html

[amber storm]

how is this not matching the one below?

[inner ridge]

I was using this website to learn django ... https://simpleisbetterthancomplex.com/series/beginners-guide/1.11/ .... but soon i realised it is outdated since django is on version 3 now... can you guys recommend a good updated resource please?

[nova storm]

Okay wait @inner ridge

https://docs.djangoproject.com/en/3.0/intro/tutorial01/

You can go for it

Or if you want to study with video lectures then you can find so many courses on udemy, where i learned it

[calm pond]

@amber storm guess I could help you with that

But can't really right now...... Tomorrow maybe

[amber storm]

it is the question mark messing with it, thanks for the offer tho!

[calm pond]

👍 recently built a complete web application with Django
So played quite a lot with it

[nimble epoch]

I dont get something in sqlalchemy Table object

In the following.c.followers,
What is c?

[native tide]

Is this doing my due dilligence assuming there is no profit on the site, and I have searched this much to try to identify the person but can only trace it to pinterest sharing. I imagine for someone who truly cared, they could dig deeper. My question, is it my due dilligence to care about finding the person who released their art and then made it such that when I search for the image, they are not the first thing that comes up. Because imo, if they chose not to do that, then there would be no way for them to not be credited. There would be no way for me to ignore a "do not use request" -- but when something is shared all over the internet to the extent that some things are, is it wrong of me to just clip some image and use it in in a web design, when I cant find the original artist because they have no site publishing it?

[ornate dew]

hello, does anyone know how I can run my flask app publicly?

rn its running on localhost

I have this that shows up

when I try to use Apache to run it on my cloud server

my stuff is in /var/www

[native tide]

hello, does anyone know how I can run my flask app publicly?
@ornate dew yea

[ornate dew]

😮

[native tide]

when I try to use Apache to run it on my cloud server
@ornate dew use nginx is easier than apache to run flask

[ornate dew]

nginx, how do I set it up

my cloud server is under Debian 9

[native tide]

nginx, how do I set it up
@ornate dew you are using which cloud

[ornate dew]

wdym which cloud

[native tide]

?

[ornate dew]

My OS?

it's Debian 9

Linux

[native tide]

Hmm

No

[ornate dew]

My Cloud Provider?

[native tide]

Yea

[ornate dew]

Digital Ocean

[native tide]

Oh ok

sudo apt install nginx

it's Debian 9
@ornate dew debian and ubuntu are mostly the same

https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-gunicorn-and-nginx-on-ubuntu-18-04

[ornate dew]

oh

Alright thanks!

I'll follow that

[native tide]

https://www.digitalocean.com/community/tutorials/how-to-deploy-a-flask-application-on-an-ubuntu-vps

@ornate dew for apache

[ornate dew]

screw apache

I already tried

doesnt work

this happens

[native tide]

@ornate dew oh ok

[ornate dew]

lol

[native tide]

Is it apache

[ornate dew]

Ya

[native tide]

Oh ok

[ornate dew]

ill try with nginx

[native tide]

I also run my flask in nginx

[ornate dew]

alright gimme a few minutes

ill try

[native tide]

Ok

[ornate dew]

is the virtual environment part necessary?

[native tide]

Hmm it's up to you

And forgot to tell you run your flask development server on port 5000

[ornate dew]

isnt that the dev port

[native tide]

@ornate dew Mmm for me I did all the steps it didn't work after changing the dev port in the mainfile.py it worked but in nginx I kept port 443

[native tide]

@ornate dew did it work?

[static night]

Have phpstorm autocomplete in html ?

[native tide]

Is it possible to upload (through ftp-transfer) a .db database and use it together with a flask/django website? Ie. make a working website offline and upload everything - will it still work?

[gleaming herald]

Need help with WebSocket here
https://github.com/tiangolo/fastapi/issues/1411

[native tide]

[do any one know how to make loop in flask (HTML) file

Haven't tried it myself, but have you checked out this guide?

https://www.geeksforgeeks.org/python-using-for-loop-in-flask/

@native tide thanks:)

Please report back if it solved the issue. I am still early in the course, so have not had the chance to test myself yet 🙂

[nimble epoch]

Anyone can explain to me the the primaryjoin and secondaryjoin in SQLAlchemy?(i dont get it properly)

[grizzled crescent]

Hello everyone ☺

I have a job in a company as a Python developer but I want to find another jobs for the week-end to make more money.

Do you Know where can I find short jobs while working at home ?

[cold anchor]

upwork might be a good place to start building a freelance portfolio

if you want to go further than that I'd recommend registering as a company and building a website and advertising/reaching out to local businesses

[grizzled crescent]

@cold anchor did you try upwork ?

[cold anchor]

I haven't personally, their rates for somebody just starting is way lower than I would charge- I use my network to find freelance opportunities

surprisingly, I've also had people reach out about freelance from reading my blog posts, so that's another avenue you could use

[pulsar ivy]

I tryed freelancer, i cant find a job

I need to show some projects that i am not total beginner :(

So i will try to make website for free

And use it as reference

[grizzled crescent]

You pay someone to read your blog posts @cold anchor ?

[cold anchor]

start with personal projects, things you want to build, you don't need to just do free work

no, I don't pay anybody to read my posts, they're all available on medium

[pulsar ivy]

I am now making something like forum, tho whenever i made small change at code i mess up something else :(

[cold anchor]

writing tests might help with that!

[grizzled crescent]

Did you earn money with freelancer @pulsar ivy ?

[pulsar ivy]

Nope

Never

I never got actual job in there

So i am just in contact with experienced people in this field, they are navigating me

I cant wait to get first income

[zealous siren]

@gleaming herald that’s more #414737889352744971 question. Likely with 10k WSS, you will need to spin out more instances and include a load balancer

So I’d get your FastAPI going in container

[gleaming herald]

That I am doing now too @zealous siren

But the thing is if I restart the RESTAPI Code

The websocket file can accept more connections

And 1000 websocket per instance is a little too less?

[zealous siren]

Not necessarily

Are websocket and Rest API mixed in same server?

If so, I’d separate them if possible

[cold anchor]

☝️

they do 2 very different jobs and you'll likely see better performance from both if you separate

[zealous siren]

But to scale, likely you will need multiple containers and load balancer possibly with right hand side request routing

[gleaming herald]

But to scale, likely you will need multiple containers and load balancer possibly with right hand side request routing
@zealous siren https://blog.jayway.com/2015/04/13/600k-concurrent-websocket-connections-on-aws-using-node-js/

Here is one example without containers

but they use node.js

[cold anchor]

they also use a very big and expensive server

which server are you using?

[gleaming herald]

My configuration is 8 cores

[zealous siren]

Ops is very trial and error using hard numbers

[gleaming herald]

with 16GB Ram

[cold anchor]

another cap is the number of max open files on the server, max connections can't exceed that

run the ulimit command to see what this number is

[zealous siren]

Problem being is GIL

Gunicorn isn’t multiple processes just multiple threads

[cold anchor]

👍

[gleaming herald]

Gunicorn isn’t multiple processes just multiple threads
@zealous siren I'm using uvicorn

The workers which is configurable uses processes

[cold anchor]

also gunicorn does use processes instead of threads https://docs.gunicorn.org/en/latest/run.html#commonly-used-arguments

[gleaming herald]

AFAIK

[zealous siren]

Cool

[gleaming herald]

https://www.uvicorn.org/

[zealous siren]

But I assume there is built in LB handling

[gleaming herald]

another cap is the number of max open files on the server, max connections can't exceed that
@cold anchor How does WS is connected to max open files

[zealous siren]

Gunicorn uses uvicorn

[gleaming herald]

@cold anchor How does WS is connected to max open files
@gleaming herald I remeber getting error of too many files open once or twice

[cold anchor]

for each connection your server needs to open another file, if you hit the max number of open files, you can't accept another connection

[gleaming herald]

Aah

[zealous siren]

Again if your server is dying under load, at work, step 2 is toss a load balancer at it and spin up multiple instances

Even if it’s on same server

[gleaming herald]

Another problem would be

If one container has accepted a ws connection

next time it should go to the same container

[zealous siren]

Why?

[gleaming herald]

Because your open connection would be inside that container

If you go to different container it would not have your connection and probably start a new connection to wsserver

[zealous siren]

Load balancer would keep open socket with same container

[gleaming herald]

Ah Okay

I guess that would be devops team would handle

[zealous siren]

Which is what I am

[gleaming herald]

I was just curious and wary about

why the concurrent connection number is soo low

Is it normal

or I was doing something wrong?

[zealous siren]

Websockets are “heavy”

Compared to HTTP

[cold anchor]

I guess my question for you is: what are you optimizing for? (practically) are you hitting errors when your thousands of users connect? are you trying to future-proof your scale and keep your costs low?

[gleaming herald]

I guess my question for you is: what are you optimizing for? (practically) are you hitting errors when your thousands of users connect? are you trying to future-proof your scale and keep your costs low?
@cold anchor the latter

[zealous siren]

For a lot of languages, it’s garbage collector

[gleaming herald]

I can do a hard limit by seeing that if number parallel connections are more than 1000 directly tell them

but that's more like scapegoat

I wanna scale well

[cold anchor]

tbh, I'm of the mindset that you should deploy your app and let this problem happen, then solve it

[gleaming herald]

That will happen

considering the userbase

[zealous siren]

We run into same problem with C#

[cold anchor]

this is what I would call a "good problem" to have- you have so many users that you're hitting errors in something underlying your app code

[gleaming herald]

We run into same problem with C#
@zealous siren Can you expalin more

this is what I would call a "good problem" to have- you have so many users that you're hitting errors in something underlying your app code
@cold anchor That's what I was wondering

[zealous siren]

When you try and scale inside same “process”, the garbage collector is What causes the load issues

[gleaming herald]

TBH it's a whatsapp bot and since callbacks of WhatsApp are in RESTAPI I'm building it

[zealous siren]

Thus separate processes and load balancer

[gleaming herald]

And since the client would be Amazon or Uber Bot

You can easily expect atleast 10K parallel connections

Thus separate processes and load balancer
@zealous siren Aaah

[cold anchor]

but can you expect 10k connections right now? do you have amazon or uber as a customer today?

[gleaming herald]

but can you expect 10k connections right now? do you have amazon or uber as a customer today?
@cold anchor Yes

[cold anchor]

great- then this is a problem worth solving lol, just wanted to confirm that

[zealous siren]

What cloud you using?

[gleaming herald]

What cloud you using?
@zealous siren Currently we have our own servers

great- then this is a problem worth solving lol, just wanted to confirm that
@cold anchor Exactly

[zealous siren]

Ehhhh

[cold anchor]

you have racks of servers you're keeping on prem?

[gleaming herald]

Thus separate processes and load balancer
@zealous siren So keeping API And WSSERVER seperate would help?

you have racks of servers you're keeping on prem?
@cold anchor Yes

[cold anchor]

wow

[gleaming herald]

More related to Security

With so wide clientele it's a rich company

LOL?

[cold anchor]

so at my last job we decided to break out the WS server from the http servers and use a totally different language

none of us were experts in a framework that did a great WS job so we learned elixir quickly and made a separate websocket service

we had similar issues and contracted the author of the phoenix framework to help us scale our connections

[gleaming herald]

Woah

And?

[cold anchor]

and it worked like crazy, our memory and cpu load went way down and we had clear signals for "you need to spin up a new server and put it behind the LB now"

because the limit was the # of open files on the server

[gleaming herald]

The problem would be I'm using a AI model in WSServer and i'm pretty sure migrating a complete service would be a bad idea
And ML/AI is done much easily on python then on another server

because the limit was the # of open files on the server
@cold anchor I'm pretty sure it's the same issue

would need to see how to increase this limit

[cold anchor]

have your AL/ML service be an http API that sends messages to the WS server

make them two distinctly separate services

by the time I left that job we had just passed 1MM concurrent connections

[gleaming herald]

OMFG

That's a dream I'd like to achieve now

Using elixir you say?

[cold anchor]

phoenix/elixir

[gleaming herald]

and increasing the maximum open file limit

on server

[cold anchor]

and use rabbit's advice too: have a load balancer

[gleaming herald]

Aah! Okay

have your AL/ML service be an http API that sends messages to the WS server
@cold anchor I wish I could

[cold anchor]

what's the constraint stopping you?

[gleaming herald]

So the AI Model is for Chatbot

[cold anchor]

we had an NLP service that was done in python and communicated to the WS service to send messages

[gleaming herald]

So the thing is the NLP Service is context dependent

So once you said hello

it starts your intent document

and would fill all the slots

like if you say Hello, book a cab

it would start the service and ask for locations

so websocket is easy in this case

as I can just do recv() on start and when required location I can do it again

if that makes sense

[cold anchor]

yeah that makes sense

but there's no reason you still can't separate the services

even if they're context dependent

[neat flower]

Hey, are there any Django wizards around?

[gleaming herald]

yeah that makes sense
@cold anchor

even if they're context dependent
@cold anchor so how do I create a rest api where everytime I get the request I would know what are the past responses and this should be the reply

[cold anchor]

so the way we did this was that the server was stateless and every time it got a message from a user it would update and persist the context of the conversation to the database

[gleaming herald]

so the way we did this was that the server was stateless and every time it got a message from a user it would update and persist the context of the conversation to the database
@cold anchor Aah

Any resources you sugges

I 'm not aware of this methodology

[cold anchor]

sorry, all this stuff was home-brewed so it's not something I can share more details about under my NDA

[gleaming herald]

LOL

I get it

[cold anchor]

though I can suggest that you take the "context" you have in your NLP server and imagine it was a blob of data: how would that data look? what questions do you need to ask it?

you can store blobs of data just fine, so that was the general method we used

just a dict filled with the context of the conversation

[gleaming herald]

Yeah

just a dict filled with the context of the conversation
@cold anchor

hi_flag = False
message = await websocket.receive_bytes()
if message == "Hey":
    hi_flag = True
    reply = f'hey, there {user_id}'
    await websocket.send_bytes(reply)
    message = await websocket.receive_bytes()
    if message == "hey":
        reply = f'Hey you already said Hi ! WTH !'
        await websocket.send_bytes(reply)

if message == "Goodbye":
    if not hi_flag:
        reply = 'Hey You did not say HI !'
        await websocket.send_bytes(reply)

So for a code like this

I would just replace the websocket receive bytes

and I would parse through the blob of data

everytime I get a request?

[neat flower]

I'm building a survey site, where a user is being shown a set of images, which are pulled from a database. The user then classifies those images to one of two categories. After this, the user is taken to a new view, where they are being shown those same images and they have to draw on top of them. Now, I have to save these drawings and associate them with the survey participant. Question is, does it make sense to create a Form for the drawings or how would I pull that data from the user's interactions?

[cold anchor]

conversations_by_user_id = { ... } # this is the mock database

message = await websocket.receive_bytes()
conv = conversations_by_user_id[user_id] # this is the db lookup
hi_flag = conv['hi_flag']
conv['messages'].append(message)
if message == "Hey":
    ,,,

so part of your logic would include getting and updating the conversation state

[gleaming herald]

Aah
Kinda makes sense

[cold anchor]

I would suggest imagining a conversation without AI

how would you model, save and fetch the conversation and messages of just a user<>user conversation?

since an AI is just another client of the conversation

[zealous siren]

Wrjh what country you in?

Being on premise is a killer

But if you need Load Balancer, I’ve used Kemp with good results

And they have virtual appliances

You could roll your own with Nginx likely

[gleaming herald]

But if you need Load Balancer, I’ve used Kemp with good results
@zealous siren Would take a look

Wrjh what country you in?
@zealous siren We have servers mostly in US
But also backup in Italy and India

how would you model, save and fetch the conversation and messages of just a user<>user conversation?
@cold anchor So AI is not used for replying the message it is used to find the meaning and ask appropriate questions so we can get data

Like imagine you come and say Hello, I am rdbaker
The ai would recognize that rdbaker is name and wouldn't ask for name that is name slot would be filled
So the script would go on to next slot that is what is your age

[cold anchor]

right, and what data does that AI need to make that decision?

that's the question to answer in order to find out how to store the context of your conversation

[gleaming herald]

right, and what data does that AI need to make that decision?
@cold anchor It just needs the utterance

[cold anchor]

but it also needs to know about past utterances too, otherwise how would it know the user already said hi? (for example)

[zealous siren]

I can’t imagine doing this completely on premise

[gleaming herald]

LOL

You would rely on AWS?

I guess i'll probably shift to that from prem servers

[zealous siren]

Azure

For us

[gleaming herald]

but it also needs to know about past utterances too, otherwise how would it know the user already said hi? (for example)
@cold anchor Aah that's part of the NLP Layer which I have applied for patent

[zealous siren]

Like AWS/Azure have really capable load balancer you could just deploy

This conversation would be like 30 seconds long

[gleaming herald]

Like AWS/Azure have really capable load balancer you could just deploy
@zealous sirenAWS is so big

[zealous siren]

And?

[gleaming herald]

Understanding it would take soo long

I feel
There are million things available

Do one thing in wrong way they will charge IDK What

Anyways Amazon is not known for it's UI/UX Experince

[zealous siren]

Sure, downside to on premise is amount of time wasted dealing with this

[gleaming herald]

LOL

Agreed

[cold anchor]

I have a resource that helped me understand using AWS pretty securely in terms of network security if that would help

haven't used azure though

[gleaming herald]

I have a resource that helped me understand using AWS pretty securely in terms of network security if that would help
@cold anchor Yes Please

Sure, downside to on premise is amount of time wasted dealing with this
@zealous siren do you mean something like this https://aws.amazon.com/ec2/autoscaling

[cold anchor]

https://start.jcolemorrison.com/aws-vpc-core-concepts-analogy-guide/

[gleaming herald]

💯

https://start.jcolemorrison.com/aws-vpc-core-concepts-analogy-guide/
@cold anchor Looks perfect
Thanks a ton

@cold anchor @zealous siren
https://hashrocket.com/blog/posts/websocket-shootout
Here is useful link to see which language is superawesome for WS

[cold anchor]

very cool

[gleaming herald]

As said Elixir is among top

But GO is also a easy replacement

[cold anchor]

interesting that they had such memory usage with elixir

after hiring the author to contract with us, we got rid of those problems

[zealous siren]

We do websockets in c#

But still after a while, you want to load balancer and setup additional servers just for stability and deployment reasons

We like azure since most of PaaS services have private network stuff

[gleaming herald]

@cold anchor Looks like there is a limit on open files and keeping them on same server would have affected it more

We like azure since most of PaaS services have private network stuff
@zealous siren Still AWS is still a mammoth in PaaS

[cold anchor]

you can bump that, I think we had 50k or so per server

[gleaming herald]

Like it dominates the market a lot

you can bump that, I think we had 50k or so per server
@cold anchor Damn! Thanks a lot

[vast rover]

Hi everyone i'm, trying to create a simple webpage that shows the cookies that are stored in firefox. Until now I have not been able to show anything cause the console shows a few errors. Does anyone could help me? What am i missing or i did wrong? I'm leaving the code in a pastebin link. Thanks in advance to everyone who's gonna help me. https://pastebin.com/ac0dPbzY

[zealous siren]

Firefox will not show website all the cookies

wrjh, Sure, AWS is largest in market share and if it works for you, great, we are Azure because we are C# shop and it made sense for us to go with Microsoft cloud

but we run some python and go

despite Microsoft branding, they try really hard to be language agonistic and mostly succeed

and there is GCP but man is it limiting

[fickle fox]

Is there any good tut for making login system, I already made registration system

[gleaming herald]

despite Microsoft branding, they try really hard to be language agonistic and mostly succeed
@zealous siren Aah! okay

looks like azure has improved a lot over time

would definitely check it out

[zealous siren]

9SGx11, figure out which oAuth provider you want to use and integrate wiht it

Google/Facebook are common ones for consumers

Discord is option if you are doing discord oriented setup

[knotty seal]

If I have two submit buttons in a form and I want both of them to return form data back to a flask display function but after some processing, send to different render templates, is there a variable I can embed in the submit form input to differentiate the buttons?

[fickle fox]

okay

[knotty seal]

@fickle fox You could also try the flask mega tutorial

[fickle fox]

where can i find it?

[knotty seal]

https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world

He makes a functioning blog with a login section, comments, database

[fickle fox]

ooh thanks

[knotty seal]

np 😉

[fickle fox]

i am rn trying to figure out how to open post in different page

[knotty seal]

Are you using flask?

[patent cobalt]

@kindred marsh Any reason for spamming an invite link?

[fickle fox]

yes

[kindred marsh]

I was not spamming

I just want people to join

[patent cobalt]

Yes, that's what spamming is

[kindred marsh]

Sorry

I wanted to ask

[fickle fox]

I am trying to think how to understand where user clicked and where to capture 'POST' METHOD

mostly rn trying to open post

later on i ll creat db for comments

[kindred marsh]

@patent cobalt Do you teach python here or just answer questions of people who are learing python

[fickle fox]

something like "like" button...

[knotty seal]

@fickle fox Understood. You can do an if request.method == "POST":

Here is a form I am working on... similar concept...

@app.route("/order", methods=["GET", "POST"])
def order():
  if request.method == "POST":
    drinkType = request.form["drinkType"]
    milkType = request.form["milkType"]
    drinkSize = request.form["drinkSize"]
    sugarAmt = request.form["sugarAmt"]
    extras = request.form["extras"]
    myDrink = MyCoffee(drinkType, milkType, extras, sugarAmt, drinkSize)
    myTuple = myDrink.returnData()
    return(f"{myTuple}")
  else:
    return render_template("order.html")

[patent cobalt]

@kindred marsh see #community-meta

[fickle fox]

wait are u trying to display it later or store it in db?

[cloud path]

hey guys, is there a way to specify the maximum file size or the maximum image size through FileAllowed from flask-wtf?

[knotty seal]

@fickle fox - I can replace the return(f"{myTuple}") with a return render_template

I only have that there for testing

[fickle fox]

ooh okay

i will try to make it

[knotty seal]

Here is an example from when I was learning it...

def entry():
  global bookDetails #global instantiation required. Otherwise there is an error about using the variable before declaring it.
  if request.method == "POST":    
    bookName = request.form["book"]
    authorName = request.form["author"]
    rating = request.form["rating"]
    #create a tuple
    bookTuple = (bookName, authorName, rating)
    #create a dict
    myDict = {"book": bookName, "author": authorName, "rating": rating}
    x = bookDoc.insert_one(myDict)
    #create a list of tuples
    bookDetails.append(bookTuple)        
    #print(bookDetails) <-- Used in debugging
    #return render_template("table.html", book=bookName, author=authorName, rating=rating) <-- Used in debugging
    return render_template("table.html", bookTuple = bookDetails)
  else:
    bookDetails = [] #clear any existing tuples
    return render_template("entry.html")```

I was using mongoDB in that app

[fickle fox]

now i get error 'str doesnt exist'

or something like that

oh wait i need string

[knotty seal]

😛

[fickle fox]

{% block head %}
<title>{{post_opens.title}}</title>
{% end block %}
{%  block body %}
<p name ='title' id='title'>{{post.title}}</p>
<br/>
<p name = 'content' id='content'>{{post.content}}</p>
<br/>
<p name = 'author' id='author'>{{post.author}}</p>
{%  endblock %```HTML

    post_opens = BlogPost.query.get_or_404(id)

    if request.method == 'POST':
        post_opens.title = request.form['title']
        post_opens.content = request.form['content']
        post_opens.author = request.form['author']
        return render_template('post.html')
    else:
        return render_template('post.html', posts=post_opens)```

here what would i need to make it functional? or to display text? @knotty seal

[knotty seal]

You need to pass the data into the HTML template you're rendering... eg:

def post_open(id, author):
    post_opens = BlogPost.query.get_or_404(id)

    if request.method == 'POST':
        post_opens.title = request.form['title']
        post_opens.content = request.form['content']
        post_opens.author = request.form['author']
        return render_template('post.html', title=post_opens.title, content=post_opens.content, author=post_opens.author)
    else:
        return render_template('post.html', posts=post_opens)

Then...

{% extends 'base.html' %}

{% block head %}
<title>{{post_opens.title}}</title>
{% end block %}
{%  block body %}
<p name ='title' id='title'>{{ title }}</p>
<br/>
<p name = 'content' id='content'>{{ content }}</p>
<br/>
<p name = 'author' id='author'>{{ author }}</p>
{%  endblock %}

[fickle fox]

ooh

let me try it

    {% for post in posts %}
        <h2>{{ post.title }}</h2>

        {% if post.author %}
            <h3>By: {{ post.author }}</h3>
        {% else %}
            <h3>By: N/A</h3>
        {% endif %}
        
        <p>{{ post.content }}</p>
        <a href='/posts/delete/{{post.id}}'>Delete</a>
        <a href='/posts/edit/{{post.id}}'>Edit</a>
        <p id='time'>{{ post.date_posted }}</p>
        <a id='open' href='/posts/post/{{post.id}}>'>Open post</a>
        <hr>
    {% endfor%}```

this is from what i need to access it

@knotty seal tho i dont see any difference between code in my edit button and that one up there

[knotty seal]

What is the >

Sorry @fickle fox -- The URL has a greater than sign

<a id='open' href='/posts/post/{{post.id}}>'>Open post</a> <<--

See the extra > after {{ post.id }}

I am also working on my coffee ordering app, so I apologise if I don't answer sooner

[fickle fox]

its okay

[knotty seal]

Had to share 'cuz I'm proud of my development 🙂

[fickle fox]

yeah it looks nice

jinja2.exceptions.TemplateSyntaxError: Encountered unknown tag 'end'. Jinja was looking for the following tags: 'endblock'. The innermost block that needs to be closed is 'block'.

[knotty seal]

You're missing an {% endblock %}

[fickle fox]

learning programming is hard 😦

[knotty seal]

lol Tell me about it

[fickle fox]

NO QUITING

{% block head %}
<title>{{post_opens.title}}</title>
{% end block %}

{%  block body %}
<p name ='title' id='title'>{{ title }}</p>
<br/>
<p name = 'content' id='content'>{{ content }}</p>
<br/>
<p name = 'author' id='author'>{{ author }}</p>

{% endblock %}```

as i see i have endblock :v

soon

i see my victory

[knotty seal]

Okay @fickle fox - What is that html file called?

[fickle fox]

post.html

why?

[knotty seal]

{% end block %}

space

Should be {% endblock %}

[frigid spindle]

i cant get my bootstrap columns to align vertically. what am i doing wrong?

[languid shard]

I'm trying to make a flask web app with Flask Login with two types of users: student and manager. I'm not experienced with Flask Login (currently using session). I'm trying to use a mongodb atlas backend with flask.ext.mongoengine to store student and manager data. I'm currently using sqlalchemy. Each student starts out with a manager_id of NULL, but can change to a managers manager_id. I'm not sure how to replicate this behavior with a nosql db such a mongodb using FlaskLogin since it seems like there can't be multiple types of users. Any help would be helpful 😛

[tired root]

@languid shard Each user should have ONE role

And that role defines access

so student is 0, manager is 1

as value

having 2 values for each violates NF1

[languid shard]

How should I relate/reference a student to a manager?

[tired root]

with a n:m relationship table

or is it 1:n?

[languid shard]

1 to many i think

[tired root]

can one manager have many students or many managers have many students?

[languid shard]

one manager to many students

Isn't that sql though? I'm trying to shift to a nosql db

[tired root]

Why?

[languid shard]

Should I ask this in #databases ?

Oh

didn't see your messag

[fickle fox]

@knotty seal i would neevr notice it thanks xD

now i have just to manage to display text

[languid shard]

There's a json file for each user that I want to store along with the sql table. Right now the sql table has the filepath as a column, but I don't think that's sustainable for deployment since heroku deletes files.

[zealous siren]

Why would you do that?

[tired root]

Here is a discussion for 1:m on SO: https://stackoverflow.com/questions/25485882/mongodb-one-to-many-relationship

[languid shard]

I have dictionaries i need to persistently store

for each user

@zealous siren

[tired root]

Translate them to tables

[zealous siren]

Or use nosql JSON store

[languid shard]

Yeah I'm trying to transition to nosql. @tired root Hmmm that would get messy pretty quick i think. I'll try to pull up a sample json file

[tired root]

@languid shard Use whatever you want, I've linked you the SO discussion above

maybe it helps

[languid shard]

{"personal_info": {"name": "", "county": "", "district": "", "division": "", "category": "", "club": "test"}, "leadership": [{"year": "2020", "activity": "Test", "role": "E", "level": "Cl", "duties": "                    Responsibilities / Duties / Accomplishments\r\n                "}, {"year": "2020", "activity": "Vice President", "role": "E", "level": "Co", "duties": "Assist the President.\r\n                "}, {"year": "2020", "activity": "Group Leadership", "role": "A", "level": "Cl", "duties": "                    Responsibilities / Duties / Accomplishments\r\n                "}], "service": [], "awards": [], "career": [], "invitations": {}}```

Yeah it looks helpful

[tired root]

that is easy to translate into a database

[zealous siren]

Yea

[tired root]

Looking at this file just screams relational to me 😄

[zealous siren]

And even then, there is plenty of systems that will let you throw JSON at it and then select off of it

[languid shard]

leadership e.g is a list of dictionaries though

[tired root]

What db you are using, which type and to an extend what product, should always be governed by use case, not because some manager uses the nosql buzz word

Or serverless shudder

[zealous siren]

I use Azure CosmosDB/ Amazon has DocumentDB

Can’t Postgres do that as well?

[languid shard]

I've been using sqlite and flasksqlalchemy through cs50 ide, but thought it was wise to switch to mongodb since it stores data as json naturally

This is just a student project that I want to deploy on heroku

[zealous siren]

But scorcher is right, you can use relational database

[languid shard]

I learned sql like a month ago :). How do you store dictionaries? Would I need to make a table for leadership, service, etc... ?

[zealous siren]

Yes to second

[languid shard]

Hmm git reset --hard 🤣

[polar pendant]

hey

[fickle fox]

@app.route('/posts/post/<int:id>', methods=['GET', 'POST'])
def post_open(id):
    post_opens = BlogPost.query.get_or_404(id)

    if request.method == 'POST':
        post_opens.title = request.form['title']
        post_opens.content = request.form['content']
        post_opens.author = request.form['author']
        return render_template(
                                'post.html',
                                post=post_opens.title,
                                content=post_opens.content,
                                author=post_opens.author)
    else:
        return render_template('post.html',)```

{% block head %}
<title>{{ title }}</title>
{% endblock %}

{%  block body %}
<div class="cent">
<p name ='title' id='title'>{{ title }}</p>
<br/>
<p name = 'content' id='content'>{{ content }}</p>
<br/>
<p name = 'author' id='author'>{{ author }}</p>
</div>
{% endblock %}```