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files = ['PresserInc-1.jpg', 'PresserInc-1_10.jpg', 'PresserInc-1_11.jpg', 'PresserInc-10.jpg', 'PresserInc-2.jpg', 'PresserInc-3.jpg', 'PresserInc-4.jpg', 'PresserInc-5.jpg', 'PresserInc-6.jpg', 'PresserInc-11.jpg']
 
import re
 
def natural_sort(l): 
    convert = lambda text: int(text) if text.isdigit() else text.lower() 
    alphanum_key = lambda key: [ convert(c) for c in re.split('([0-9]+)', key) ] 
    return sorted(l, key = alphanum_key)
 
print natural_sort(files)

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• # 2:   hide show   clone   input   212 days 23 hours ago    Success

  result: Success     time: 0.09s    memory: 10840 kB     returned value: 0

  input:

  files = ['Inc-1.jpg', 'PresserInc-1_10.jpg', 'Inc-1_11.jpg', 'PresserInc-10.jpg', 'PresserInc-2.jpg', 'PresserInc-3.jpg', 'Inc-4.jpg', 'PresserInc-5.jpg', 'PresserInc-6.jpg', 'Inc-11.jpg']
   
  import re
   
  def natural_sort(l): 
      convert = lambda text: int(text) if text.isdigit() else text.lower() 
      alphanum_key = lambda key: [ convert(c) for c in re.split('([0-9]+)', key) ] 
      return sorted(l, key = alphanum_key)
   
  print natural_sort(files)

  output:

  ['PresserInc-1.jpg', 'PresserInc-1_10.jpg', 'PresserInc-1_11.jpg', 'PresserInc-2.jpg', 'PresserInc-3.jpg', 'PresserInc-4.jpg', 'PresserInc-5.jpg', 'PresserInc-6.jpg', 'PresserInc-10.jpg', 'PresserInc-11.jpg']
  
• # 1:   hide show   clone   input   330 days 14 hours ago    Success

  result: Success     time: 0.02s    memory: 4648 kB     returned value: 0

  input: no
  output:

  ['PresserInc-1.jpg', 'PresserInc-1_10.jpg', 'PresserInc-1_11.jpg', 'PresserInc-2.jpg', 'PresserInc-3.jpg', 'PresserInc-4.jpg', 'PresserInc-5.jpg', 'PresserInc-6.jpg', 'PresserInc-10.jpg', 'PresserInc-11.jpg']