On 3/27/14 6:45 PM, Dan Stromberg wrote:
On Fri, Mar 21, 2014 at 1:42 PM, vasudevram <vasudev...@gmail.com> wrote:
Can anyone - maybe one of the Python language core team,
or someone with knowledge of the internals of Python - can
explain why this code works, and whether the different
occurrences of the name x in the expression, are in
different scopes or not? :
x = [[1,2], [3,4], [5,6]]
[x for x in x for x in x]
I'll give this +1 for playfulness, and -2 for lack of clarity.
I hope no one thinks this sort of thing is good to do in real-life code.
You might try this to flatten a list of lists:
>>> from functools import reduce
>>> import operator
>>> import operator as λ
>>> reduce(λ.add, l)
[1, 2, 3, 4, 5, 6, 7, 8, 9]
>>>
marcus
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