How to Get All Possible Combinations of a List's Elements?

Most lists are meant to organize a collection of data, but there are times when you'll need to get all possible combinations of that data. Whether you need to find every pair of two-word phrases or want to create a list of possible emojis, this Ruby one-liner gives you all possible combinations:

python get all combinations of list

By Cautious CrossbillCautious Crossbill on Jan 29, 2021
itertools.combinations(iterable, r)

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1

how to get all possible combinations in python

By Open OpossumOpen Opossum on Apr 06, 2020
all_combinations = [list(zip(each_permutation, list2)) for each_permutation in itertools.permutations(list1, len(list2))]

Source: kite.com

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3

python product

By Dead DugongDead Dugong on Jul 05, 2020
#from itertools import product


def product(*args, **kwds):
    # product('ABCD', 'xy') --> Ax Ay Bx By Cx Cy Dx Dy
    # product(range(2), repeat=3) --> 000 001 010 011 100 101 110 111
    pools = map(tuple, args) * kwds.get('repeat', 1)
    result = [[]]
    for pool in pools:
        result = [x+[y] for x in result for y in pool]
    for prod in result:
        yield tuple(prod)

Source: docs.python.org

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1

python create a program that runs through all possible combinations

By YYYYYY on Apr 29, 2020
from itertools import combinations

lst = ["a" ,"b", "c"]
lengthOfStrings = 3
for i in combinations(lst, lengthOfStrings):
  print(i)

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0

python combinations function

By Homely HamsterHomely Hamster on Dec 06, 2020
def combinations(iterable, r):
    pool = tuple(iterable)
    n = len(pool)
    for indices in permutations(range(n), r):
        if sorted(indices) == list(indices):
            yield tuple(pool[i] for i in indices)

Source: docs.python.org

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0

python combinations

By Dead DugongDead Dugong on Jul 04, 2020
def permutations(iterable, r=None):
    # permutations('ABCD', 2) --> AB AC AD BA BC BD CA CB CD DA DB DC
    # permutations(range(3)) --> 012 021 102 120 201 210
    pool = tuple(iterable)
    n = len(pool)
    r = n if r is None else r
    if r > n:
        return
    indices = list(range(n))
    cycles = range(n, n-r, -1)
    yield tuple(pool[i] for i in indices[:r])
    while n:
        for i in reversed(range(r)):
            cycles[i] -= 1
            if cycles[i] == 0:
                indices[i:] = indices[i+1:] + indices[i:i+1]
                cycles[i] = n - i
            else:
                j = cycles[i]
                indices[i], indices[-j] = indices[-j], indices[i]
                yield tuple(pool[i] for i in indices[:r])
                break
        else:
            return

Source: docs.python.org

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