mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-28 12:30:00 +00:00
74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
|
# -*- 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: (c) 2013 by Armin Ronacher.
|
||
|
|
: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 io import StringIO
|
||
|
|
|
||
|
|
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 cStringIO import StringIO
|
||
|
|
|
||
|
|
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):
|
||
|
|
# 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. Because of internal type checks
|
||
|
|
# we also need to make sure that we downgrade the custom metaclass
|
||
|
|
# for one level to something closer to type (that's why __call__ and
|
||
|
|
# __init__ comes back from type etc.).
|
||
|
|
#
|
||
|
|
# This has the advantage over six.with_metaclass in that it does not
|
||
|
|
# introduce dummy classes into the final MRO.
|
||
|
|
class metaclass(meta):
|
||
|
|
__call__ = type.__call__
|
||
|
|
__init__ = type.__init__
|
||
|
|
def __new__(cls, name, this_bases, d):
|
||
|
|
if this_bases is None:
|
||
|
|
return type.__new__(cls, name, (), d)
|
||
|
|
return meta(name, bases, d)
|
||
|
|
return metaclass('temporary_class', None, {})
|