/usr/lib/python2.7/dist-packages/hyperframe/flags.py is in python-hyperframe 3.2.0-2.
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 | # -*- coding: utf-8 -*-
"""
hyperframe/flags
~~~~~~~~~~~~~~~~
Defines basic Flag and Flags data structures.
"""
import collections
Flag = collections.namedtuple("Flag", ["name", "bit"])
class Flags(collections.MutableSet):
"""
A simple MutableSet implementation that will only accept known flags as elements.
Will behave like a regular set(), except that a ValueError will be thrown when .add()ing
unexpected flags.
"""
def __init__(self, defined_flags):
self._valid_flags = set(flag.name for flag in defined_flags)
self._flags = set()
def __contains__(self, x):
return self._flags.__contains__(x)
def __iter__(self):
return self._flags.__iter__()
def __len__(self):
return self._flags.__len__()
def discard(self, value):
return self._flags.discard(value)
def add(self, value):
if value not in self._valid_flags:
raise ValueError("Unexpected flag: {}. Valid flags are: {}".format(value, self._valid_flags))
return self._flags.add(value)
|