Use a set comprehension:
csv2 = {int(n) for n in csv2}
or, for Python versions prior to Python 2.7, use a generator expression:
csv2 = set(int(n) for n in csv2)
Demo:
>>> csv2 = {'92599', '95571', '95382', '95383'}
>>> {int(n) for n in csv2}
set([95571, 95383, 95382, 92599])
>>> set(int(n) for n in csv2)
set([95571, 92599, 95382, 95383])
To create the difference, just call the set.difference()
method on csv1
directly:
>>> csv1 = {92599, 95571, 95382, 95383}
>>> csv2 = {int(n) for n in csv2}
>>> csv1.difference(csv2)
set([])
or use the -
subtraction operator for the same operation:
>>> csv1 - csv2
set([])