/usr/lib/python2.7/test/test_future2.py is in libpython2.7-testsuite 2.7.11-7ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | """This is a test"""
from __future__ import nested_scopes; import string
def f(x):
def g(y):
return x + y
return g
result = f(2)(4)
|