Combining lists to dictionary

Denis McMahon denismfmcmahon at gmail.com
Tue Nov 11 21:43:01 CET 2014


Hi

Given x,y are a lists of keys and value that I wish to combine to a 
dictionary, such that x[n] is the key for value y[n], which is preferred:

z = {a:b for (a,b) in zip(x,y)}
z = {x[n]:y[n] for n in range(min(len(x),len(y)))}

The zip feels more elegant, but it seems clunky to use the zip method to 
create a list of tuples just to split them up into key:value pairs. 
However the zip method handles the inequal length list problem. Granted 
it would probably be advisable to check that x and y are the same length 
before starting anyway.

-- 
Denis McMahon, denismfmcmahon at gmail.com



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