I have a question ,I have one list : country = [ Australia , america , England , Spain] If i want to choose 2 of them random for (List A) and choose 2 of them random for (List B ) and values of two lists arent same (not equal to gether) Can You say which code should i write
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1[`random.sample`](https://docs.python.org/3/library/random.html#random.sample) four items and then split them into two lists… – deceze Nov 07 '21 at 11:58
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`pairings = list(itertools.zip_longest(*[iter(random.sample(country, k=len(country)))] * 2))`. – ekhumoro Nov 07 '21 at 13:11
2 Answers
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You can use random.sample:
country = ['Australia', 'america', 'England', 'Spain']
import random
random.sample(country, k=2)
If you want to split in two:
A = set(country)
B = random.sample(A, k=2)
A = list(A.difference(B))
output:
>>> A
['England', 'america']
>>> B
['Spain', 'Australia']
alternative: random.shuffle (modifies the initial list)
import random
random.shuffle(country)
A = country[:2]
B = country[2:]
mozway
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1alternative: [`random.sample(country, k=len(country))`](https://docs.python.org/3/library/random.html#random.sample) (doesn't modify the initial list) – Olvin Roght Nov 07 '21 at 12:14
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@Olvin, yes so many possibilities ;) the downside is that it makes a copy. – mozway Nov 07 '21 at 12:16
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I'd say it's a pros of it *(if initial data modification is not allowed)* – Olvin Roght Nov 07 '21 at 12:17
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@Olvin Roght that would give you the same list as the original (4 entries) but shuffled. Why would that be of use in this scenario? – Marc-Alexandru Baetica Nov 07 '21 at 12:17
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@Marc-AlexandruBaetica what Olvin suggested was just to replace the `shuffle`, then you still need to split in two ;) – mozway Nov 07 '21 at 12:19
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1Gotcha. Seemed like he was talking about the `random.sample()` from the second example. Thanks for the clarification :) – Marc-Alexandru Baetica Nov 07 '21 at 12:21
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If I got you right, this could help
l = ['Australia' , 'america' , 'England' , 'Spain']
a = random.choices(l,k=2)
b=[]
for i in l:
if(i not in a):
b.append(i)
print(a)
print(b)
you can also try using sets
Olvin Roght
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