What is wrong in this code? My objective is to derive a function that prints the no of lowercase characters and uppercase characters.
I tried to find out but couldn't find out please help
def determine_upper_lower(value):
upper_case = 0
lower_case = 0

for i in value:
if i. isupper():
upper_case = upper_case + 1

elif i. islower():
lower_case = lower_case + 1

result = 'the number of uppercase letters are ' + str(upper_case) + ' and the number of lowercase letters are ' + str(lower_case)
return result

sample_string = 'Quick brown fox jumped over the lazy Dog'
print(determine_upper_lower(sample_ string))