Find an element in a list of tuples

python list search tuples
Bruce picture Bruce · Feb 3, 2010 · Viewed 350.6k times · Source

I have a list 'a'

a= [(1,2),(1,4),(3,5),(5,7)]

I need to find all the tuples for a particular number. say for 1 it will be

result = [(1,2),(1,4)]

How do I do that?

Answer

Nadia Alramli picture Nadia Alramli · Feb 3, 2010

If you just want the first number to match you can do it like this:

[item for item in a if item[0] == 1]

If you are just searching for tuples with 1 in them:

[item for item in a if 1 in item]

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