/usr/lib/python2.7/dist-packages/testfixtures/utils.py is in python-testfixtures 4.14.3-1.
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 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | # Copyright (c) 2008-2011 Simplistix Ltd
# See license.txt for license details.
from textwrap import dedent
from functools import wraps
from inspect import getargspec
def generator(*args):
"""
A utility function for creating a generator that will yield the
supplied arguments.
"""
for i in args:
yield i
class Wrappings:
def __init__(self):
self.before = []
self.after = []
def wrap(before, after=None):
"""
A decorator that causes the supplied callables to be called before
or after the wrapped callable, as appropriate.
"""
def wrapper(wrapped):
if getattr(wrapped, '_wrappings', None) is None:
w = Wrappings()
@wraps(wrapped)
def wrapping(*args, **kw):
args = list(args)
to_add = len(getargspec(wrapped)[0][len(args):])
added = 0
for c in w.before:
r = c()
if added < to_add:
args.append(r)
added += 1
try:
return wrapped(*args, **kw)
finally:
for c in w.after:
c()
f = wrapping
f._wrappings = w
else:
f = wrapped
w = f._wrappings
w.before.append(before)
if after is not None:
w.after.insert(0, after)
return f
return wrapper
def extend_docstring(docstring, objs):
for obj in objs:
try:
obj.__doc__ = dedent(obj.__doc__) + docstring
except (AttributeError, TypeError): # python 2 or pypy 4.0.1 :-(
pass
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