How to extract the n-th elements from a list of tuples?

python list tuples
pleasedontbelong picture pleasedontbelong · Jul 22, 2010 · Viewed 157.1k times · Source

I'm trying to obtain the n-th elements from a list of tuples.

I have something like:

elements = [(1,1,1),(2,3,7),(3,5,10)]

I wish to extract only the second elements of each tuple into a list:

seconds = [1, 3, 5]

I know that it could be done with a for loop but I wanted to know if there's another way since I have thousands of tuples.

Answer

luc picture luc · Jul 22, 2010 
n = 1 # N. . .
[x[n] for x in elements]

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