list comprehension clear solution for Non-unique Elements by aoleynik - python coding challenges

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list comprehension solution in Clear category for Non-unique Elements by aoleynik

def checkio(data):
    return [item for item in data if data.count(item) != 1]

Jan. 22, 2015

Comments:

Danter on April 7, 2015, 8:06 p.m.
Same as I did

Botanium on July 5, 2015, 2:21 p.m.
how about ">1" instead of "!= 1" ????

p42es on Sept. 12, 2015, 8:01 p.m.
No difference for this task. Except maybe process time, but I don't know what is quicker. Anyway for list length up to 1000 (task condition) really no difference.

ValeryManiuk on July 25, 2015, 6:59 p.m.
I don quite get why the function returns the whole list and not just one element of it (item)?

p42es on Sept. 12, 2015, 7:58 p.m.
Because it's "list generator", google it.

woe_from_wit on March 23, 2016, 4:06 p.m.
yeah.. generators are cool part of Python. You should learn it

wuhuarui1992 on April 27, 2016, 4:17 a.m.
data.count(). got it. thanks

glenuk on Oct. 17, 2016, 12:40 p.m.
Exact same as my solution.

SweetSassyMolassy on Dec. 29, 2016, 11:39 p.m.
Thanks for this snippet. Really clear example of using a generator. Helped me a lot.

dorisgu72 on May 4, 2017, 9:23 a.m.
Thanks! Haven't felt familiar with the list comprehension, this is clever!

abehad701 on June 6, 2017, 12:13 a.m.
nice. i like how you did it.

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