Access your Python editor. Prompt the user to enter data using the "raw_input" function and the "lower" function. For example, type:text = raw_input ("Enter a Letter: ").lower () print text Press ...

One performance-enhancement technique common to many languages, and one Python can use too, is memoization —caching the results of a function call so that future calls with the same inputs don ...

This online data science specialization is designed for learners with little to no programming experience who want to use Python as a tool to play with data. You will learn basic input and output ...