[Tutor] Python program to extract numeric suffix from a string

[Roel Schroeven]

Alternative:

def ret_suffix(st):
     without_number_suffix = st.rstrip('0123456789')
     if without_number_suffix == st:
         return "No digit suffix found"
     return st[len(without_number_suffix):]


Manprit Singh schreef op 4/07/2021 om 6:16:
> Dear sir,
>
> Assume a problem to extract a numeric suffix from a string .
> String is st = "abcd12ghi456"
> The numeric suffix of this string is "456" in case if there is no suffix,
> the program should print " no suffix found"
> The code i have written is given below :
>
> def return_suffix(st):
>      for x, y in enumerate(reversed(st)):
>          if not y.isdigit():
>              return st[-x:] if x else "No digit suffix found"
>
> st1 = "abcd1gh123"
> ans = return_suffix(st1)
> print(ans)  # gives the right answer as '123'
>
> st1 = "abcd1gh"
> ans = return_suffix(st1)
> print(ans)   # gives the right answer  as  'No digit suffix found'
>
> I feel I have used enumerate and reversed both which makes the program a
> little difficult to read . Can this be written in a more efficient way ?
>
> Need your guidance.
>
> Regards
> Manprit Singh
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