python - How to implement this using map and filter? -


how write statement using map , filter same result list comprehension expression:

[(x,y) x in range(10) if x%5==0  y in range(10) if y%5==1]

result: 

[(0, 1), (0, 6), (5, 1), (5, 6)]

i know seems pointless, i'm curious

this how did without comprehesions:

sum(map(lambda x: map(lambda y: (x,y), filter(lambda y: y%5==1,range(10))), filter(lambda x: x%5==0,range(10))),[])

executing:

>>> sum(map(lambda x: map(lambda y: (x,y), filter(lambda y: y%5==1,range(10))), filter(lambda x: x%5==0,range(10))),[]) [(0, 1), (0, 6), (5, 1), (5, 6)]

the last, , (maybe)nasty trick using sum flatten list. getting [[(0, 1), (0, 6)], [(5, 1), (5, 6)]].


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