🔒 Practice Q | Python | Page 1

quartz epoch Mar 14, 2024, 2:22 PM

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Hi! We had this practice test and I was wondering what the missing blank could be.... here's the code I wrote
def count_members(file: TextIO) -> list[int]:
"""Given an open file containing group information as described above,
return a list containing the number of people in each group.
Every group begins with a GROUP # line (where # is the number for that group).
All member names contain only lower-case letters.
Precondition:
- the file has at least one group

file = open('sample_groups.txt')
>>> count_members(file)
[2, 3, 1]
"""
counts = []
line = file.readline().strip()
while line != '':
group_count = 0
line = file.readline().strip()
while line.islower() and 'GROUP' not in line:
counts.append(group_count)
return counts

I was wondering about the third final line for the conditions in the while loop. They asked us to fill out the two conditions between the and and I'm not sure if line.islower() is right.

proper quartzBOT Mar 14, 2024, 2:22 PM

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Hey @quartz epoch!

It looks like you are trying to paste code into this channel.

You seem to be using the wrong symbols to indicate where the code block should start. The correct symbols would be ```, not """.

Here is an example of how it should look:
```
Hello, world!
```

This will result in the following:

Hello, world!```
You can **edit your original message** to correct your code block.

proper quartzBOT Mar 14, 2024, 2:22 PM

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quartz epoch Hi! We had this practice test and I was wondering what the missing blank could b...

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@quartz epoch

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.

dire dragon Mar 14, 2024, 2:27 PM

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quartz epoch Hi! We had this practice test and I was wondering what the missing blank could b...

the 2nd while loop would be used to advance the file with readline() until another GROUP line is encountered

quartz epoch Mar 14, 2024, 2:28 PM

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dire dragon the 2nd while loop would be used to advance the file with readline() until anoth...

what would I put in the and conditions in the second loop

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I think one of them is right

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idk about the other one

dire dragon Mar 14, 2024, 2:29 PM

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it might also be used to verify that the file isn't empty

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so while line and 'GROUP' not in line

quartz epoch Mar 14, 2024, 2:30 PM

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while line != ''?

dire dragon Mar 14, 2024, 2:30 PM

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while line is basically the same as while line != ''

quartz epoch Mar 14, 2024, 2:30 PM

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how so

dire dragon Mar 14, 2024, 2:31 PM

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conditionally checking a datatype without a comparison checks for the "truthiness" of that datatype

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any non-empty string is considered "truthy"

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!e

name = 'bob'

if name:
    print("Hello")

proper quartzBOT Mar 14, 2024, 2:31 PM

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

Hello

quartz epoch Mar 14, 2024, 2:32 PM

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oh shit

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damn

dire dragon Mar 14, 2024, 2:32 PM

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yeah, python is cool

quartz epoch Mar 14, 2024, 2:32 PM

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so if it isn't empty

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it'll check it

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and say

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this is a good string

dire dragon Mar 14, 2024, 2:32 PM

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yeah

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all basic datatype have this

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non-zero ints are truthy

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non-empty lists are truthy

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!e

items = []

if items:
    print("You have items!")
else:
    print("No items")

proper quartzBOT Mar 14, 2024, 2:33 PM

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

No items

dire dragon Mar 14, 2024, 2:33 PM

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if items is the same as if len(items) > 0

quartz epoch Mar 14, 2024, 2:34 PM

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I see

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that's pretty cool

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I have a test today

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I didn't study enough 💀 so I'm doing it now

dire dragon Mar 14, 2024, 2:35 PM

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you'll also need to adjust the content of the while block

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since you need to update line to the next line of the file

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right now you're just appending

quartz epoch Mar 14, 2024, 2:36 PM

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did I not do line = readline()

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file.readline()*

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ohhhh

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I didn't

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in the second loop

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I would probably do it after the counts

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because I read line already

dire dragon Mar 14, 2024, 2:37 PM

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yeah, if you aren't changing line, then you'll create an infinite loop

quartz epoch Mar 14, 2024, 2:37 PM

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ok good point

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oh I had another error

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something with opening up a txt file to read it

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do you mind if I shoud you

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sgiw*

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show*

dire dragon Mar 14, 2024, 2:40 PM

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go ahead 🙂

quartz epoch Mar 14, 2024, 2:43 PM

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f = open('stuff.txt', 'r')
x = f.read()
for line in f: 
  print(line)

f.close()
f = open('stuff.txt', 'r')
print(f.readlines()[2].strip())```

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it gives me this error

dire dragon Mar 14, 2024, 2:43 PM

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Where are you running this from?

quartz epoch Mar 14, 2024, 2:44 PM

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wing101 ide

dire dragon Mar 14, 2024, 2:44 PM

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can you comment out all the code and try writing this

quartz epoch Mar 14, 2024, 2:44 PM

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suer

dire dragon Mar 14, 2024, 2:44 PM

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import os

print(os.getcwd())

quartz epoch Mar 14, 2024, 2:45 PM

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wait I did that yesterday

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you want me to comment the code out too

dire dragon Mar 14, 2024, 2:48 PM

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quartz epoch you want me to comment the code out too

yes, so it doesn't error

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this will list your "working directory"

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which is where it will look for files when your code runs

quartz epoch Mar 14, 2024, 2:51 PM

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hmm

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and uncomment after @dire dragon ?

dire dragon Mar 14, 2024, 2:51 PM

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yes, this is just to test

quartz epoch Mar 14, 2024, 2:54 PM

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oko

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ok I ran it

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gonna uncomment now

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still the wsame error

dire dragon Mar 14, 2024, 2:56 PM

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what was the output when you ran it...?

quartz epoch Mar 14, 2024, 2:57 PM

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same error

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dire dragon Mar 14, 2024, 2:57 PM

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before you uncommented

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it should have output a path

quartz epoch Mar 14, 2024, 2:57 PM

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ohhh

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this

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dire dragon Mar 14, 2024, 2:58 PM

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is that the folder you're working in?

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quartz epoch Mar 14, 2024, 2:58 PM

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yea my downloads

dire dragon Mar 14, 2024, 2:58 PM

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that's where testfile.py is?

quartz epoch Mar 14, 2024, 2:58 PM

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yes\

dire dragon Mar 14, 2024, 2:58 PM

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and stuff.txt?

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can you do this instead

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import os

print(os.listdir())

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sorry be back in a few min

quartz epoch Mar 14, 2024, 2:59 PM

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dire dragon and `stuff.txt`?

both in the same folder in the downloads section

quartz epoch Mar 14, 2024, 3:00 PM

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dire dragon ```py import os print(os.listdir()) ```

gave me a list of everything in my downlaods

dire dragon Mar 14, 2024, 3:02 PM

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quartz epoch gave me a list of everything in my downlaods

can you show it?

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your testfile doesn't show .py but your txt file does show .txt

quartz epoch Mar 14, 2024, 3:03 PM

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I wrote txt in iut

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it

dire dragon Mar 14, 2024, 3:03 PM

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which is making me think you accidentally named your file stuff.txt.txt

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do you see the stuff file when it listed the files?

quartz epoch Mar 14, 2024, 3:04 PM

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oh i do

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it's txt

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txt

dire dragon Mar 14, 2024, 3:04 PM

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😉

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I really recommend changing your windows settings to show file extensions

quartz epoch Mar 14, 2024, 3:04 PM

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is there a quick way to comment everything 💀

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I have to go thorugh all my code and uncomment and recomment

dire dragon Mar 14, 2024, 3:04 PM

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I'm not familiar with that ide but most have a hotkey

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select everything and try ctrl+/

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or ctrl+k

quartz epoch Mar 14, 2024, 3:05 PM

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ctrl / adds more comments

dire dragon Mar 14, 2024, 3:05 PM

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ctrl+shift+/ should be uncomment then

quartz epoch Mar 14, 2024, 3:05 PM

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ok yea

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tytytytytyty

quartz epoch Mar 14, 2024, 3:06 PM

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dire dragon I really recommend changing your windows settings to show file extensions

I'll look into it

dire dragon Mar 14, 2024, 3:06 PM

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I also recommend not just working directly in your downloads folder

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make a dedicated place on your pc where you work on your python files/projects

quartz epoch Mar 14, 2024, 3:06 PM

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why does this only print in happy 💀

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Like a folder?

dire dragon Mar 14, 2024, 3:06 PM

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quartz epoch why does this only print in happy 💀

🤨

quartz epoch Mar 14, 2024, 3:06 PM

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WHATTTTT

dire dragon Mar 14, 2024, 3:07 PM

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I'm not sure what you're asking

quartz epoch Mar 14, 2024, 3:07 PM

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uhh

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I wasn't expecting this output

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dire dragon Mar 14, 2024, 3:08 PM

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quartz epoch Mar 14, 2024, 3:08 PM

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here's the question

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oh wait

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read

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sends it to the end

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ughhhhhh I should know that

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it's readline and readlines that do the other stuff

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THEY T RICKED ME

dire dragon Mar 14, 2024, 3:08 PM

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welcome to programming 🙂

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You might have to actually think sometimes

quartz epoch Mar 14, 2024, 3:09 PM

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wait I wrote the right answer 💀 Idk why I'm so surprised

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yea programming is weird

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I'm in a weird spot

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I don't mind programming

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but I'm not very good at it

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and this isn't my future career path

dire dragon Mar 14, 2024, 3:09 PM

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no one is good at something they just started learning

quartz epoch Mar 14, 2024, 3:09 PM

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so like - idk where I'm going with this

dire dragon Mar 14, 2024, 3:10 PM

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it takes time and practice to get good at it

quartz epoch Mar 14, 2024, 3:10 PM

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dire dragon no one is good at something they just started learning

true that

dire dragon Mar 14, 2024, 3:10 PM

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quartz epoch and this isn't my future career path

you never know

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I went to school for animation

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now I code every day

quartz epoch Mar 14, 2024, 3:11 PM

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did you code during school

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I find it hard sometimes

dire dragon Mar 14, 2024, 3:12 PM

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No, I'm entirely self-taught

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tutorials, books, practice, asking questions

quartz epoch Mar 14, 2024, 3:12 PM

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you taught yourself after animation?

dire dragon Mar 14, 2024, 3:12 PM

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yes

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3d animation is quite technical so you can use python to help automate some of the tedious parts

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so I started coding to make my animation job easier, then decided I liked coding more than animating

quartz epoch Mar 14, 2024, 3:13 PM

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wow

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that's amazing

dire dragon Mar 14, 2024, 3:13 PM

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and now I code automation tools for animators

quartz epoch Mar 14, 2024, 3:13 PM

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I'm trying to go into business

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but things haven't been going my way recently ngl

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every club I tried out for - I got rejected from

dire dragon Mar 14, 2024, 3:13 PM

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business is broad/vague

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all of these skills need other skills to pair with it

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you can't just be "business guy"

quartz epoch Mar 14, 2024, 3:14 PM

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it's my first year- so I think I wanna do something in finance

dire dragon Mar 14, 2024, 3:14 PM

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you have to be "sports business guy" or "restaurant business guy" or "gaming business guy"

quartz epoch Mar 14, 2024, 3:14 PM

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ah

dire dragon Mar 14, 2024, 3:14 PM

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it's the same with coding

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hardly anyone successful is just "a coder"

quartz epoch Mar 14, 2024, 3:14 PM

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finance business guy 😎

dire dragon Mar 14, 2024, 3:14 PM

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I paired coding with animation

quartz epoch Mar 14, 2024, 3:14 PM

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I wanna see if I can use some coding with finance/trading

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I guess I'll start working on it

dire dragon Mar 14, 2024, 3:15 PM

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yeah, that's a good combo

quartz epoch Mar 14, 2024, 3:15 PM

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I need more experience

dire dragon Mar 14, 2024, 3:15 PM

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I don't know anything about it though

quartz epoch Mar 14, 2024, 3:15 PM

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I can't be failing all the time 💀

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yea me neither but I will do my best fs

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You've motivated me

dire dragon Mar 14, 2024, 3:17 PM

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for what it's worth, I went back to school for animation when I was 25

quartz epoch Mar 14, 2024, 3:17 PM

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yea I don't think like being a late starter is that bad

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as long as you're learning yknow?

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if you're making small steady progress

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automatically makes you better than everyone who has 0 progress

dire dragon Mar 14, 2024, 3:18 PM

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I did school for digital design first and couldn't find work

quartz epoch Mar 14, 2024, 3:18 PM

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ahhh

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switching lanes

dire dragon Mar 14, 2024, 3:18 PM

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slightly

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I had one 3d animation class during that program

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and decided that was what I fully wanted to follow

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I did work as animator for nearly 4 years though before switching to what I do now

quartz epoch Mar 14, 2024, 3:21 PM

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damnnn

dire dragon Mar 14, 2024, 3:21 PM

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so yeah, you really never know where you might end up

quartz epoch Mar 14, 2024, 3:21 PM

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you're right

dire dragon Mar 14, 2024, 3:21 PM

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I think I'm finally where I want to be though

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I love my job

quartz epoch Mar 14, 2024, 3:22 PM

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let's go

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that's a win

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if you like it

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that's all that matters

proper quartzBOT Mar 14, 2024, 4:22 PM

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Python help channel closed

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