Jul 12, 2011 · I want to define a two-dimensional array without an initialized length like this: Matrix = [][] But this gives an error: IndexError: list index out of range

For most C use cass of an array, a normal (non-fixed) list is the idiomatic python equivalent. This is an answer to the question, as it probably helps the the OP (who is transitting from C to Python) most.

How do I define a function with optional arguments? Asked 13 years, 9 months ago Modified 1 year, 5 months ago Viewed 1.2m times

By "modern Python" I mean something that will run in Python 2.5 but be 'correct' for the Python 2.6 and Python 3.* way of doing things. And by "custom" I mean an Exception object that can include extra …

I noticed that in Python, people initialize their class attributes in two different ways. The first way is like this: class MyClass: __element1 = 123 __element2 = "this is Africa" ...

Python is a strongly-typed dynamic language, which associates types with values, not names. If you want to force callers to provide data of specific types the only way you can do so is by adding explicit …

The solution to this problem is to invoke your classes and functions after you define them. Python does not have any way to forward declare classes or methods so the only option is to put the invocations …

Jul 5, 2022 · Is there a standard way to associate version string with a Python package in such way that I could do the following? import foo print(foo.version) I would imagine there's some way to retrieve that...

Apr 1, 2013 · 287 Python 3 - UPDATED 18th November 2015 Found the accepted answer useful, yet wished to expand on several points for the benefit of others based on my own experiences. Module: …

Aug 30, 2008 · cstruct2py is a pure python library for generate python classes from C code and use them to pack and unpack data. The library can parse C headres (structs, unions, enums, and arrays …