Using islower, isupper and isdigit methods, we can count number of digits, lowercase and Uppercase Characters in a string.

 

count_lower_upper_digits.py

def count_lower_upper_digits(input_str):
    result = {
'upper': 0,
'lower': 0,
'digit': 0
    }

for ch in input_str:
if ch.isupper():
            result['upper'] += 1
elif ch.islower():
            result['lower'] += 1
elif ch.isdigit():
            result['digit'] += 1

return result

input = '123Hello Wo12rlD'

print('Number of digits, lower and uppercase characters in "',input,'" are ', count_lower_upper_digits(input))

 

Output

Number of digits, lower and uppercase characters in " 123Hello Wo12rlD " are  {'upper': 3, 'lower': 7, 'digit': 5}

 

 

 

 

Previous                                                    Next                                                    Home