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Created July 5, 2020 07:02
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i9.py
import itertools
selectors=[True,False,True,False]
l1=itertools.compress([1,2,3,4],selectors)
#Only returns element whose corresponding selector is True.
print (list(l1))#Output:[1,3]
#filter - instead of passing an iterable of True and False. function is used to determine the value "True or False"
l2=filter(lambda x:x%2!=0,[1,2,3,4])
print (list(l2))#Output:[1,3]
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