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  1. import re
  2. fn_list = ['IMG_0064.png',
  3.            'IMG_0064.JPG',
  4.            'IMG_0064_1.JPG',
  5.            'IMG_0064_2.JPG',
  6.            'IMG_0064_2.PNG',
  7.            'IMG_0064_2.BMP',
  8.            'IMG_0064_3.JPEG',
  9.            'IMG_0065.JPG',
  10.            'IMG_0065.JPEG',
  11.            'IMG-20150623-00176-preview-left.jpg',
  12.            'IMG-20150623-00176-preview-left_2.jpg',
  13.            'thumb_2595.bmp',
  14.            'thumb_2595_1.bmp',
  15.            'thumb_2595_15.bmp']
  16.  
  17. pattern = re.compile(r'([\dt])(_\d+)\.', re.IGNORECASE)
  18.  
  19. for line in fn_list:
  20.     search_obj = pattern.search(line)
  21.     if search_obj:
  22.         matching_group = search_obj.group(2)
  23.         print matching_group
Success #stdin #stdout 0.01s 9016KB
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https://ideone.com/6mi6fI
language:
Python (cpython 2.7.16)
created:
8 years ago
visibility:
secret

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