Count the uppercase letters in a string with Python

Question

I am trying to figure out how I can count the uppercase letters in a string.

I have only been able to count lowercase letters:

def n_lower_chars(st         


        

Answer 1

from string import ascii_uppercase
count = len([letter for letter in instring if letter in ascii_uppercase])

This is not the fastest way, but I like how readable it is. Another way, without importing from string and with similar syntax, would be:

count = len([letter for letter in instring if letter.isupper()])