How to check if a character is upper-case in Python?

Question

I have a string like this

>>> x=\"Alpha_beta_Gamma\"
>>> words = [y for y in x.split(\'_\')]
>>> words
[\'Alpha\', \'beta\', \'Gam         


        

Answer 1

You can use this regex:

^[A-Z][a-z]*(?:_[A-Z][a-z]*)*$

Sample code:

import re

strings = ["Alpha_beta_Gamma", "Alpha_Beta_Gamma"]
pattern = r'^[A-Z][a-z]*(?:_[A-Z][a-z]*)*$'

for s in strings:
    if re.match(pattern, s):
        print s + " conforms"
    else:
        print s + " doesn't conform"

As seen on codepad