How do I declare an array in Python? - Stack Overflow
Oct 3, 2009 · A couple of contributions suggested that arrays in python are represented by lists. This is incorrect. Python has an independent implementation of array() in the standard library module array "array.array()" hence it is incorrect to confuse the two. Lists are lists in python so be careful with the nomenclature used.
Proper way to declare custom exceptions in modern Python?
Dec 17, 2013 · 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 data about the cause of the error: a string, maybe also some other arbitrary object relevant to the exception.
What does -> mean in Python function definitions? - Stack Overflow
Jan 17, 2013 · In more detail, Python 2.x has docstrings, which allow you to attach a metadata string to various types of object. This is amazingly handy, so Python 3 extends the feature by allowing you to attach metadata to functions describing their parameters and return values. There's no preconceived use case, but the PEP suggests several.
python - How to define a two-dimensional array? - Stack Overflow
Jul 12, 2011 · One does not define arrays, or any other thing. You can, however, create multidimensional sequences, as the answers here show. Remember that python variables are untyped, but values are strongly typed. –
How to write a Python module/package? - Stack Overflow
Apr 1, 2013 · 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: A module is a file containing Python definitions and statements.
python - How to set the current working directory? - Stack Overflow
Python one of the core ideas of python is to work cross-plattform. – user1767754. Commented Dec 20, 2017 ...
python - How do I define a function with optional arguments?
A Python function can take in some arguments, take this for example, def add(x,y): return x+ y # calling this will require only x and y add(2,3) # 5 If we want to add as many arguments as we may want, we shall just use *args which shall be a list of more arguments than the number of formal arguments that you previously defined ( x and y ).
struct - C-like structures in Python - Stack Overflow
Aug 30, 2008 · There is a python package exactly for this purpose. see cstruct2py. 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 declarations) and emulate them in python. The generated pythonic classes can parse and pack the ...
python - How to build a basic iterator? - Stack Overflow
For Python 3, closure state is kept in an immutable in the enclosing scope and nonlocal is used in local scope to update the state variable. def count(low, high): counter = 0 def tmp(): nonlocal counter val = low + counter if val < high: counter += 1 return val return None return iter(tmp, None)
Python #define equivalent - Stack Overflow
I'm developing a Hebrew python library for my toddler, who doesn't speak English yet. So far I've managed to make it work (function names and variables work fine). The problem is with 'if', 'while', 'for', etc. statements. if this were C++, for ex., I'd use. #define if אם are there are any alternatives for #define in Python?