Get first word of all strings in lists

Question

I have a CSV file which I\'m reading in like below. I need to get the first word of all the strings. I know how to get first letter but I\'m not sure how I can get words.

Answer 1

You can use comprehension

>>> l = [['diffuse systemic sclerosis', 'back', 'public on july 15 2008']
,['diffuse systemic sclerosis', 'forearm', 'public on may 9 2014']]

>>> list({i.split()[0] for j in l for i in j})
['back', 'diffuse', 'forearm', 'public']