Libraries are collections of shared code. They're common in Python, where they're also called "modules," but they're also ...

Testing functions isn't hard, but how do you test user input and output? In my last article, I started looking at "pytest", a framework for testing Python programs that's really changed the way I look ...

However, the GIL causes performance problems for certain types of applications, because it only allows one thread to execute Python code at a time. Figure 2 illustrates the problem with the GIL in an ...