Must-do problems: Strings

90 min · Beginner

These are the string problems every Python beginner should be able to solve, from reversing a word to checking an email address. Try each one on paper with a small input first, then check your program against every test.

What you will learn

Read characters and slices with positive and negative indexes
Clean and compare text with strip, lower, split and join
Walk over characters with a for loop to count and test them
Check input with in, startswith, endswith and isdigit

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