A Python for loop gotcha. When iterating over the elements of an object in a for loop, don’t do anything that would alter the members or length of the sequence. For instance, ...

This post explains how to use loops in Python. You'll learn FOR loops, WHILE loops, BREAK, CONTINUE and more. ... we can actually change the iterator – the number of steps taken on each loop. Code.

$ python iterator_test.py 463 926 1389 1852 Let’s take a look at what’s going on. We made our own class and defined a __next__ method, which returns a new iteration every time it’s called.

How to Read Multiple Files in a Loop in Python. ... Create a variable to store the file contents. This variable will store the text of the file for each iteration.