Replace strings in a list (using re.sub)

Question

I am trying to replace parts of file extensions in a list of files. I would like to be able to loop through items (files), and remove the extensions. I don\'t know how to ap

Answer 1

You can try this:

import re
file_lst = ['cats1.fa', 'cats2.fa', 'dog1.fa', 'dog2.fa']
final_list = [re.sub('\d+\.\w+$', '', i) for i in file_lst]

Output:

['cats', 'cats', 'dog', 'dog']