How to extract all UPPER from a string? Python

Question

#input
my_string = \'abcdefgABCDEFGHIJKLMNOP\'

how would one extract all the UPPER from a string?

#output
my_upper = \'ABCDEFGHIJKL         


        

Answer 1

You could use a more functional approach

>>> s = 'abcdefgABCDEFGHIJKLMNOP'
>>> filter(str.isupper, s)
'ABCDEFGHIJKLMNOP'