Interested in learning Python? Jack Wallen takes you through your first steps in building a simple application to take user input and write it to a file.

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 ...

For example, a user may enter a text string in all capital letters and you need to normalize the data by translating it to lower case. You can translate user input to lowercase using Python's ...