Writing GUI programs involves two basic steps. First, you need to write the code to create the interface, with elements, such as menus, and widgets, such as buttons, labels and entry fields. You then ...

In Python, a SyntaxError happens when the interpreter finds code that does not conform to the rules of the Python language.

Spiffy and convenient as Python is, most everyone who uses the language knows it’s comparatively creaky—orders of magnitude slower than C, Java, or JavaScript for CPU-intensive work. But several ...