python - Regex match with mix of uppercase and lowercase letters

Question

This question already has an answer here: question from:https://stackoverflow.com/questions/65557639/regex-match-with-mix-of-uppercase-and-lowercase-letters

Answer 1

It returns None because it looks only at the position 0 (first char) only.

You need search instead:

import re

x = re.search('[A-Z]{1}', 'ABCDEF').group()
print(x)

# This doesn't work as expected
x = re.search('[A-Z]{1}', 'aBCDEF').group()
print(x)

Output:

A
B