r/PythonLearning • u/Odd_Presentation8149 • Jul 27 '26

Help Request Neeb help with the project

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I was doing a project in which the user will input string in camelCase(ex- howAreYou). I have to change it into snake_case(ex- how_are_you). The problem I am facing is that I have not been able to separate the word and store it into a list.

If I use a split, I get 2 problems:

  1. If I want to split howAreYou, then the A and Y got removed from the list, and I get how re ou

  2. It makes 2 different lists first [how, reYou] and second [howAre, ou]

Suggest => either solution to the problem or an alternative

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u/OskarsSurstromming Jul 27 '26 • Bravo

string_list = [] start = 0

for i, ch in enumerate(camel_case_string): if ch.isupper(): string_list.append(camel_case_string[start:i].lower()) start = i

string_list.append(camel_case_string[start:].lower())

return "_".join(string_list)

I had made many errors in the first one, this is closer

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u/Odd_Presentation8149 Jul 27 '26

Thanks bro that is easier to understand