In the following example, we loop through a list of numbers, and use the variable digit to hold each number in turn: Strings in Python are considered “sequences” — they can be iterated over ...

Loops allow you to make your program execute a series of commands based on certain parameters. Python has two loop systems: ...

This includes basic notions such as sets and functions: Properties of sets, definition and ... You must be comfortable with Python programming. This includes basic control structures in Python: ...