CamelCase to snake_case

Question

a = input()

#camelCaseDoing to camel_case_doing

ac = a[0]
for x in a[1:]:
if (x.isalpha() and x.upper() == x):
x = '_' + x.lower()
ac += x
print(ac)

Answer 1

Hi Sanjay Sahu there is a hint in the task. If the first letter is upper it shouldn't take an underscore. Your code actually is missing the case if the first letter is capital.

Answer 2

Oh yeah I didn't notice that, great you found what to do yourself 👍

Answer 3

This code passes first 4 tests, but not the 5th one..!!

Answer 4

Julian Zimpel
Thanks for your response..!
I had actually taken the first letter as is through following variable declaration:
ac = a[0]
I was converting uppercase letter into _+lowercase from 2nd letter onwards..
I've now rectified my code by changing the above line of code into:
ac = a[0].lower ()
Finally, the code has been able to pass all tests..!!

Answer 5

Hi Julian Zimpel , your remarks actually gave me the much needed insight for rectifying the code.