/usr/lib/python2.7/dist-packages/future/types/newopen.py is in python-future 0.15.2-4ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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A substitute for the Python 3 open() function.
Note that io.open() is more complete but maybe slower. Even so, the
completeness may be a better default. TODO: compare these
"""
_builtin_open = open
class newopen(object):
"""Wrapper providing key part of Python 3 open() interface.
From IPython's py3compat.py module. License: BSD.
"""
def __init__(self, fname, mode="r", encoding="utf-8"):
self.f = _builtin_open(fname, mode)
self.enc = encoding
def write(self, s):
return self.f.write(s.encode(self.enc))
def read(self, size=-1):
return self.f.read(size).decode(self.enc)
def close(self):
return self.f.close()
def __enter__(self):
return self
def __exit__(self, etype, value, traceback):
self.f.close()
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