▲ 0 r/pythonhelp
Code but wht is it and how do we really know it works
from io import BytesIO wht does this do is it even right should it be better and wht functions does it do like...
u/Weak-Gur-3242 — 4 days ago
r/pythonhelp
▲ 9 r/pythonhelp
When should I avoid using list comprehensions?
I started using list comprehensions in my project, but I feel confused about when they are actually a good fit. I tried to use one for a task that involves checking conditions on nested lists, and now my code is harder to follow. Is there a guideline for when it's better to stick with regular loops instead? I want my code to be readable, but I'm not sure I've got the balance right.
u/RyanDubois43 — 7 days ago
▲ 2 r/pythonhelp
How to pass a string of keyword arguments into a function
Having encountered, the seemingly impossible in Python, difficulty of passing a string of keyword arguments into a function like this:
args_in = "arg1 = 'var1', arg2 = 2, arg3 = True, arg4='var4'"
def myFunc(arg1=None, arg2=None, arg3=None, arg4=None):
print(f"{arg1=}, {arg2=}, {arg3=}, {arg4=}")
myFunc(args_in)
One solutions I found was to use eval():
eval("myFunc(" + args_in ")")
although I am informed that this is the work of the devil and should be avoided at all costs.
Next attempts were to convert the "string" into a dict{} and pass **dict, however all methods for doing this failed when any of the arguments contained a comma ','.
However a fully working solution to this was finally provided to me on the discuss.python.org forum:
args_in = "arg1 = 'var1', arg2 = 2, arg3 = True, arg4='va,r4'"
def myFunc(arg1=None, arg2=None, arg3=None, arg4=None):
print(f"{arg1=}, {arg2=}, {arg3=}, {arg4=}")
def str2dict(str_in: str) -> dict[str, str]:
import ast
return {pair.arg: ast.literal_eval(pair.value)
for pair in ast.parse(f"f({str_in})").body[0].value.keywords}
myFunc(**str2dict(args_in))
Unfortunately due to rather rude and overly zealous moderation on there that solution was deleted. Hence the reason for publishing it here for the archive and in case it helps someone else in the future.
u/RomfordNavy — 14 days ago
▲ 5 r/pythonhelp
Performance issue when running python file
Hey everyone,
I'm experiencing a performance drop when running a Python file. I'm using VS Code on Windows 10 while learning to program.
When I hit the run button, the runtime of the program is 5.0 seconds, even though it should execute in roughly about 0.003 milliseconds.
I have tried switching to older versions like 2025.6.1, but that didn't work.
Any solutions to that problem?
u/Nutellatoast_2 — 14 days ago
▲ 3 r/pythonhelp
What's everyone using for Python coding these days?
I mostly code with python and i've been thinking about changing my setup.
I'm not looking for anything too complicated. Mainly something that can understand the project, help debugging and make changes across multiple files without me having to explain the whole thing every time.
If you mostly work with Python what does your setup look like these days and how it been working for you?
u/ExplanationFlashy501 — 14 days ago
▲ 2 r/pythonhelp
What's the simplest way to host small apps?
I'm pretty new to development and mostly build small Python/JS apps with AI.
I just want something simple for hosting, dependencies and a few API calls without a lot of setup or surprise costs.
What are you guys using for this?
u/Current_Package8576 — 14 days ago