find common elements in two lists python

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showing results for - "find common elements in two lists python"
Karlee
28 Jun 2018
1list1 = [1,2,3,4,5,6]
2list2 = [3, 5, 7, 9]
3list(set(list1).intersection(list2))
Adrián
12 Jul 2019
1list1 = ['little','blue','widget']
2list2 = ['there','is','a','little','blue','cup','on','the','table']
3
4list3 = set(list1)&set(list2)
5
6list4 = sorted(list3, key = lambda k : list1.index(k))
Martina
21 Jan 2017
1len([x for x in list1 if x in list2])
Luca
16 Aug 2019
1# using numpy
2import numpy as np
3a = np.array([1,2,3,2,3,4,3,4,5,6])
4b = np.array([7,2,10,2,7,4,9,4,9,8])
5# using intersect1d
6print(np.intersect1d(a,b))
7# output
8# [2 4]
Paolo
24 Mar 2017
1x = {2, 3, 5, 6}
2y = {1, 2, 3, 4}
3
4z = x.intersection(y)
5
Elyna
07 Apr 2016
1>>> p = [[1,2,3], [1,9,9], [1,2,4]]
2>>> set.intersection(*map(set, p))
3set([1])
4>>> ip = iter(p)
5>>> s = set(next(ip))
6>>> s.intersection(*ip)
7set([1])
8
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