How to add uppercase and lowercase characters to this regular expression?

Question

Python

Greetings.
Tell me how to correctly write this regular expression for upper and lower letters and numbers.
regex = re.compile(r'.*(.)(\1)(\1)(\1).*$')

Answer 1

Read about flags. In this case add re.I
regex = re.compile(r'.*(.)(\1)(\1)(\1).*$', re.I)