str.capitalize

builtins

method of str

str.capitalize()

Return a capitalized version of the string.

More specifically, make the first character have upper case and the
rest lower case.

© Python Software Foundation. PSF License Version 2 · Official docs ↗

Changed in 3.8

3.8: The first character is now put into titlecase rather than uppercase. This means that characters like digraphs will only have their first letter capitalized, instead of the full character.