what are filters in python
In simple words, the filter() method filters the given iterable
with the help of a function that tests
each element in the iterable to be true or not.
Filter Methods is simply a like comprarator class of c++ STL
Code Explanation:
# A simple tutorial to show the filter
# methods in python
grades = ['A','B','C','F']
def remove_fails(grades):
return grades!='F'
print(list(filter(remove_fails,grades)))filter array python
A = [6, 7, 8, 9, 10, 11, 12]
subset_of_A = set([6, 9, 12]) # the subset of A
result = [a for a in A if a not in subset_of_A]filter function in python
nums1 = [2,3,5,6,76,4,3,2]
def bada(num):
return num>4 # bada(2) o/p: False, so wont return.. else anything above > value returns true hence filter function shows result
filters = list(filter(bada, nums1))
print(filters)
(or)
bads = list(filter(lambda x: x>4, nums1))
print(bads)Copyright © 2021 Codeinu
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