First clear solution for Flatten a List by viktor.pecheniuk - python coding challenges

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First solution in Clear category for Flatten a List by viktor.pecheniuk

def flat_list(array):
    #Memento 140!
    return sum( ([x] if not isinstance(x, list) else flat_list(x) for x in array), [] )

Dec. 1, 2014

Comments:

CounterSparta on Dec. 1, 2014, 4:59 p.m.
Next level shi*t!

mryak on April 15, 2015, 8:11 p.m.
an't [x] if type(x)==int shorter than [x] if not isinstance(x, list) ?

mlb00 on June 18, 2015, 3:14 a.m.
Thanks for teaching me about isinstance()! Great solution!

texom512 on Aug. 16, 2015, 9:32 a.m.
Useless spaces and "type(x) != list" is better than "not isinstance(x, list)".

tarjeii on Jan. 22, 2016, 10 p.m.
Really nice solution.

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