Python allows programmers to pass additional arguments to functions via comments. Now armed with this knowledge head out and spread it to all code bases.
Feel free to use the code I wrote in your projects.
Link to the source code: https://github.com/raldone01/python_lessons_py/blob/main/lesson_0_comments.ipynb
Image transcription:
from lib import add
# Go ahead and change the comments.
# See how python uses them as arguments.
result = add() # 1 2
print(result)
result = add() # 3 4
print(result)
result = add() # 3 4 5 20
print(result)
Output:
3
7
32
I hate this shit being routinely used in PHP. Symfony uses those functional comments for routing, essentially scanning every controller file as text on every visit, to gather the url patterns above functions. Laravel uses Reflection, which is functionally the same thing, to provide arguments to controller functions. Also, kind of related, the project I’m working now has few functions that use backtrace to return different results based on where they are called from. It is indeed very cursed and I’m ripping out any usages of them whenever I see one.
This is heresy.
we need a programming horror community for stuff like this
This is an affront to nature. Comments shouldn’t even make it past the scanner.
They chose violence.
That’s quite cool. But I’m not sure what’s the use case for it.
TMI 😢
I assume the people freaking out about how dumb python is didn’t bother to read the code and have never coded in python in their life, because the behavior here is totally reasonable. Python doesn’t parse comments normally, which is what you’d expect, but if you tell it to read the raw source code and then parse the raw source code for the comments specifically, of course it does.
You would never, ever accidentally do this.
…you’d also never, ever do it on purpose.
yeah frankly this post is borderline misinformation, they specifically import a library to read comments as arguments, it’s like redefining keywords in C and complaining about C being dumb
I’m going to say it just is misinformation, if that’s what “lib” is here.
This is some javascript level shit
I fucking hate this, thanks OP
How do I delete this part of the python documentation?
What? There is no
libmodule.$ python3.13 -c 'import lib' Traceback (most recent call last): File "<string>", line 1, in <module> import lib ModuleNotFoundError: No module named 'lib' $OP wrote this add() function and has provided their own lib module in the source code.
Oh, so it’s not Python that’s cursed.
One of Python’s design philosophies is—or at least was—“we are all consenting adults here.” If you really want to turn Python into Brainfuck, the interpreter isn’t going to stop you.
Thank you, I hate it
That’s disgusting
As if I needed more reasons to start away from python
Do you stay away from C++ too? You can do this there too
https://en.cppreference.com/w/cpp/utility/source_location/line
Being able to get the line number is very different from comments being parsed.
You should look at how OPs example works first maybe
The python interpreter isn’t parsing comments, the add() function is just getting the current line number from the call stack context, and using a regex to spit out the numbers to the right of the “#” on the current executing line of the source code.
Yeah fair I was just assuming this was standard library, I see your point now.
You can so stupid shit in any language. I admit Python doesn’t exactly make it difficult. A bit like JS, but different.
Why, just why
