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I want to remove all characters except a-z, A-Z, and spaces from a title. I then want to convert all the characters to lower case.

Zach Gates
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Bruce Cui
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  • Welcome to Stack Overflow! Next time, please take a look at our ["How do I ask a good question?"](https://stackoverflow.com/help/how-to-ask) page. – Zach Gates Sep 01 '17 at 04:43
  • If regex is not mandotory, use the good `.lower` [doc](https://docs.python.org/3.4/library/stdtypes.html?highlight=str.lower#str.lower), related So question(https://stackoverflow.com/questions/6797984/how-to-convert-string-to-lowercase-in-python) – Drag and Drop Sep 01 '17 at 06:42

1 Answers1

1

Use the built-in re module.

re.sub(r'[^a-zA-Z ]', '', my_string).lower()

Here's an example:

>>> re.sub(r'[^a-zA-Z ]', '', 'This is 1 test string; I like it.').lower()
'this is  test string i like it'
Zach Gates
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