From 2db58930a6f8c955c4d437657bd07e2939a705f2 Mon Sep 17 00:00:00 2001 From: James Taylor Date: Sun, 16 Jun 2019 16:16:03 -0700 Subject: Convert watch page to flask framework --- python/flask/_compat.py | 101 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 python/flask/_compat.py (limited to 'python/flask/_compat.py') diff --git a/python/flask/_compat.py b/python/flask/_compat.py new file mode 100644 index 0000000..dfbaae9 --- /dev/null +++ b/python/flask/_compat.py @@ -0,0 +1,101 @@ +# -*- coding: utf-8 -*- +""" + flask._compat + ~~~~~~~~~~~~~ + + Some py2/py3 compatibility support based on a stripped down + version of six so we don't have to depend on a specific version + of it. + + :copyright: © 2010 by the Pallets team. + :license: BSD, see LICENSE for more details. +""" + +import sys + +PY2 = sys.version_info[0] == 2 +_identity = lambda x: x + + +if not PY2: + text_type = str + string_types = (str,) + integer_types = (int,) + + iterkeys = lambda d: iter(d.keys()) + itervalues = lambda d: iter(d.values()) + iteritems = lambda d: iter(d.items()) + + from inspect import getfullargspec as getargspec + from io import StringIO + import collections.abc as collections_abc + + def reraise(tp, value, tb=None): + if value.__traceback__ is not tb: + raise value.with_traceback(tb) + raise value + + implements_to_string = _identity + +else: + text_type = unicode + string_types = (str, unicode) + integer_types = (int, long) + + iterkeys = lambda d: d.iterkeys() + itervalues = lambda d: d.itervalues() + iteritems = lambda d: d.iteritems() + + from inspect import getargspec + from cStringIO import StringIO + import collections as collections_abc + + exec('def reraise(tp, value, tb=None):\n raise tp, value, tb') + + def implements_to_string(cls): + cls.__unicode__ = cls.__str__ + cls.__str__ = lambda x: x.__unicode__().encode('utf-8') + return cls + + +def with_metaclass(meta, *bases): + """Create a base class with a metaclass.""" + # This requires a bit of explanation: the basic idea is to make a + # dummy metaclass for one level of class instantiation that replaces + # itself with the actual metaclass. + class metaclass(type): + def __new__(cls, name, this_bases, d): + return meta(name, bases, d) + return type.__new__(metaclass, 'temporary_class', (), {}) + + +# Certain versions of pypy have a bug where clearing the exception stack +# breaks the __exit__ function in a very peculiar way. The second level of +# exception blocks is necessary because pypy seems to forget to check if an +# exception happened until the next bytecode instruction? +# +# Relevant PyPy bugfix commit: +# https://bitbucket.org/pypy/pypy/commits/77ecf91c635a287e88e60d8ddb0f4e9df4003301 +# According to ronan on #pypy IRC, it is released in PyPy2 2.3 and later +# versions. +# +# Ubuntu 14.04 has PyPy 2.2.1, which does exhibit this bug. +BROKEN_PYPY_CTXMGR_EXIT = False +if hasattr(sys, 'pypy_version_info'): + class _Mgr(object): + def __enter__(self): + return self + def __exit__(self, *args): + if hasattr(sys, 'exc_clear'): + # Python 3 (PyPy3) doesn't have exc_clear + sys.exc_clear() + try: + try: + with _Mgr(): + raise AssertionError() + except: + raise + except TypeError: + BROKEN_PYPY_CTXMGR_EXIT = True + except AssertionError: + pass -- cgit v1.2.3