Python Programing Archives

Image Processing, In Python?

December 4, 2020 Oceane Wilson

Question or problem about Python programming: I’ve recently come across a problem which requires at least a basic degree of image processing, can I do this in Python, and if so, with what? How to solve the problem: Solution 1: The best-known library is PIL. However if you are simply doing basic manipulation, you are […]

Functions Defined The core of extensible programming is defining functions. Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists.

Compile main Python program using Cython

December 4, 2020 Oceane Wilson

Question or problem about Python programming: I have a Python2.6 program that can load Python modules compiled to .so files using Cython. I used Cython to compile the .py modules to .so files and everything works fine.

Is it pythonic for a function to return multiple values?

December 4, 2020 Oceane Wilson

Question or problem about Python programming: In python, you can have a function return multiple values. Here’s a contrived example:

Python unexpected EOF while parsing

December 4, 2020 James Cameron

Question or problem about Python programming: Here’s my python code. Could someone show me what’s wrong with it.

How to have same text in two links with restructured text?

December 4, 2020 Ollie MC

Question or problem about Python programming: Here is what I would like to do:

Why are Python exceptions named “Error”?

December 3, 2020 Ollie MC

Question or problem about Python programming: Why are Python exceptions named “Error” (e.g. ZeroDivisionError, NameError, TypeError) and not “Exception” (e.g. ZeroDivisionException, NameException, TypeException).

Latest ‘pip’ fails with “requires setuptools >= 0.8 for dist-info”

December 3, 2020 Bell Jacquise

Question or problem about Python programming: Using the recent (1.5) version of pip, I get an error when attempting to update several packages. For example, sudo pip install -U pytz results in failure with:

Generate random array of floats between a range

December 3, 2020 Ollie MC

Question or problem about Python programming: I haven’t been able to find a function to generate an array of random floats of a given length between a certain range.

Install particular version with easy_install

December 3, 2020 Bell Jacquise

Question or problem about Python programming: I’m trying to install lxml. I’ve had a look at the website, and version 2.2.8 looked reasonable to me but when I did easy_install lxml, it installed version 2.3.beta1 which is not really what I want I presume.

In Python NumPy what is a dimension and axis?

December 3, 2020 Odhran Miss

Question or problem about Python programming: I am coding with Pythons NumPy module. If coordinates of a point in 3D space are described as [1, 2, 1], wouldn’t that be three dimensions, three axis, a rank of three? Or if that is one dimension then shouldn’t it be points (plural), not point?