python list find

Poor Partridge answered on April 10, 2020 Popularity 10/10 Helpfulness 1/10

answer python list find

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python list find

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3 in [1, 2, 3] # => True

Popularity 10/10 Helpfulness 1/10 Language python

Source: stackoverflow.com

Tags: find list python

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Contributed on Apr 06 2022

Poor Partridge

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python find in list

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# There is several possible ways if "finding" things in lists.
'Checking if something is inside'
3 in [1, 2, 3] # => True
'Filtering a collection'
matches = [x for x in lst if fulfills_some_condition(x)]
matches = filter(fulfills_some_condition, lst)
matches = (x for x in lst if x > 6)
'Finding the first occurrence'
next(x for x in lst if ...)
next((x for x in lst if ...), [default value])
'Finding the location of an item'
[1,2,3].index(2) # => 1
[1,2,3,2].index(2) # => 1
[1,2,3].index(4) # => ValueError
[i for i,x in enumerate([1,2,3,2]) if x==2] # => [1, 3]

Popularity 10/10 Helpfulness 4/10 Language python

Source: stackoverflow.com

Tags: find

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Contributed on Apr 10 2020

Bored Coder

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python list find

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