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  1. def flat_list(array):
  2.     d=[]
  3.     for i in array:
  4.         if not isinstance(i, list):
  5.             d.append(i)
  6.         else:
  7.             d.extend(flat_list(i))
  8.     return d
  9.  
  10. print(flat_list([1, [2, 2, 2], 4]))
Success #stdin #stdout 0.02s 9112KB
comments (?)
stdin 
Standard input is empty
stdout 
[1, 2, 2, 2, 4]
https://ideone.com/wsQKFN
language:
Python 3 (python  3.9.5)
created:
4 years ago
visibility:
public

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