🔒 Please Explain why a new key value pair is not added in .json there

[stray silo]

@unique hamlet

Python help channel opened

Remember to:

• Ask your Python question, not if you can ask or if there's an expert who can help.
• Show a code sample as text (rather than a screenshot) and the error message, if you've got one.
• Explain what you expect to happen and what actually happens.

:warning: Do not pip install anything that isn't related to your question, especially if asked to over DMs.

Closes after a period of inactivity, or when you send !close.

[agile bramble]

whats g? take it out

btw if you want the json readable, (tasks, indent=4)

[rough granite]

it's complaining on line 39, but your screenshot doesn't show that many lines

[unique hamlet]

no that was earlier after that its not showing that error

[gritty tusk]

I don't think it's writing to file now

[rough granite]

oh, i see

[gritty tusk]

I still sincerely suggest you not to use argparse as it's not the right tool

[unique hamlet]

why? but

[gritty tusk]

And you also haven't seen to listen to the recommendations of using a subparser from other user

[gritty tusk]

Where the add argument?

Like, it might work, and it's not how the tool should use and just confusing people

[stone jay]

On line 22 you probably meant to use = instead of :

[unique hamlet]

no it throws me error also it just checks if aruguement is passed or not with :

[stone jay]

Can you make a smaller program (with no inputs/files) demonstrating what : does?

I don't know what you think it does, but it's not that

(it's a pretty obscure feature that you shouldn't worry about for now)

!e
(It's a "variable annotation") ```py
x: int

print(annotations)

[stray silo]

:white_check_mark: Your 3.12 eval job has completed with return code 0.

{'x': <class 'int'>}

[stone jay]

I don't understand

I'm referring to this line of code

you can assign an item to a dictionary by key using this syntax:

tasks[the_key] = the_value

=, not :

[unique hamlet]

oh ic

[stone jay]

That means that tasks is a list, but you're trying to treat it like a dictionary

[unique hamlet]

so how to make it dictionary

[stone jay]

Do you know how to make an empty dictionary?

[unique hamlet]

c = [{}]

[stone jay]

Doesn't [...] create a list?

[unique hamlet]

still

[stone jay]

What's in the tasks.json file?

[unique hamlet]

it worked bro thanks uuu

[covert glade]

Surely you need to fix the {get_id} too in that f-string.

[unique hamlet]

when i tried adding second line this showed

[stone jay]

What will this program print?

fruit_prices = {"apple": 10, "banana": 20}
for fruit in fruit_prices:
    print(fruit, type(fruit))

[unique hamlet]

but mine one is returning theid+1

[stone jay]

Iterating over a dictionary will give you its keys, not its values, as this small program demonstrates

I would recommend reading https://beej.us/guide/bgpython/html/split/dictionaries.html#iterating-over-dictionaries (and maybe the entire page on dictionaries)

The next chapter on functions will also be helpful

[rough granite]

using a dictionary here is just making things harder for you, using a list would have made things much easier

[unique hamlet]

but i m using value and not key still

[unique hamlet]

but i m learning rn so want to make thing from basics

[stone jay]

What do you mean by "using the value"?

[stone jay]

!e

fruit_prices = {"apple": 10, "banana": 20}
for fruit in fruit_prices:
    print(fruit, type(fruit))

[unique hamlet]

i mean i m putting get_id(tasks) and not get_id

[stray silo]

:white_check_mark: Your 3.12 eval job has completed with return code 0.

001 | apple <class 'str'>
002 | banana <class 'str'>

[rough granite]

lists are basic, i would say more basic then dictionaries
and would probably be more fitting here

[stone jay]

Do you know what "keys" and "values" mean in a dictionary?

[unique hamlet]

dictionary = { "key": "value"}

[stone jay]

right

you're iterating over the keys

!e
each key is a string, and you're trying to index it: ```py
task = "task 123"
print(task["id"])

[stray silo]

:x: Your 3.12 eval job has completed with return code 1.

001 | Traceback (most recent call last):
002 |   File "/home/main.py", line 2, in <module>
003 |     print(task["id"])
004 |           ~~~~^^^^^^
005 | TypeError: string indices must be integers, not 'str'

[unique hamlet]

oh ok then what should be done?

[stone jay]

If you want to iterate over the values, you need to use the values() method of the dictionary. If you want to iterate over both keys and values, you need the items() method

[stone jay]

this page has some examples and explanation

[rough granite]

the task id is a number, that increases when a new task is added
when updating a task the task is identified by the id, also very easy to just index into the list and update the value of that element
deleting a task, even easier with a list, as long as it's acceptable that the id numbers of all following tasks decrement by one too
again, perfect use cases for a list

[unique hamlet]

yeah lol i will try with both

[stone jay]

I think both can work

If you're more familiar with lists, do it with lists first

[unique hamlet]

now its not showing error but not storing as well;

[rough granite]

i see that your code is trying to find the highest id/key in the dictionary by looping through it
using a list you don't even have too, as you would just .append() to the list
but if you are going to do that with a dictionary you could as well just do something like max(tasks) instead of that loop

[unique hamlet]

idk bro how much time will it take to perfect it like all of u 😭

[rough granite]

don't try to make it perfect from the beginning
first just make something that work
then i you can iteratively improve it to the point that you are content with the solution for the time being, you can always revisit it later if you would like too improve it even further in the future

[stray silo]

Python help channel closed for inactivity

This help channel has been closed. Feel free to create a new post in #1035199133436354600. To maximize your chances of getting a response, check out this guide on asking good questions.