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  1. import re
  2.  
  3. my_list = ['1 ab ac bbba','23 abcba a aabb ab','345 ccc ab aaaaa']
  4. my_list2 = []
  5. for str in my_list:
  6.     my_list2.append(re.sub("[^abc]", "", str))
  7.  
  8. print(my_list2)
Success #stdin #stdout 0.09s 10840KB
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Standard input is empty
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['abacbbba', 'abcbaaaabbab', 'cccabaaaaa']
https://ideone.com/yR9vJ
language:
Python (cpython 2.7.16)
created:
12 years ago
visibility:
public

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