FM / site-packages

/usr/lib/python2.6/site-packages

Name	Size	Mode	Actions
appdirs-1.4.0.dist-info/	-	0755	rm
argparse-1.4.0.dist-info/	-	0755	rm
babel/	-	0755	rm
Babel-2.1.1.dist-info/	-	0755	rm
Babel-2.3.4.dist-info/	-	0755	rm
backports/	-	0755	rm
backports.ssl_match_hostname-3.4.0.2-py2.6.egg-info/	-	0755	rm
boto/	-	0755	rm
boto-2.34.0-py2.6.egg-info/	-	0755	rm
cffi-1.6.0-py2.6-linux-x86_64.egg/	-	0755	rm
chardet/	-	0755	rm
chardet-2.2.1-py2.6.egg-info/	-	0755	rm
cinderclient/	-	0755	rm
clcommon/	-	0755	rm
cliff/	-	0755	rm
cliff-1.15.0.dist-info/	-	0755	rm
cliff-2.0.0.dist-info/	-	0755	rm
clifftablib/	-	0755	rm
cliff_tablib-1.1-py2.6.egg-info/	-	0755	rm
cloudinit/	-	0755	rm
cloud_init-0.7.5-py2.6.egg-info/	-	0755	rm
cmd2-0.6.8-py2.6.egg-info/	-	0755	rm
concurrent/	-	0755	rm
cryptography-1.3.1-py2.6-linux-x86_64.egg/	-	0755	rm
dateutil/	-	0755	rm
dbus/	-	0755	rm
debtcollector/	-	0755	rm
debtcollector-0.8.0.dist-info/	-	0755	rm
debtcollector-1.3.0.dist-info/	-	0755	rm
decorator-4.0.9.dist-info/	-	0755	rm
dict-0.0.5-py2.6.egg-info/	-	0755	rm
distribute-0.6.10-py2.6.egg-info/	-	0755	rm
dns/	-	0755	rm
enum/	-	0755	rm
enum34-1.0.4-py2.6.egg-info/	-	0755	rm
enum34-1.1.3-py2.6.egg/	-	0755	rm
funcsigs/	-	0755	rm
funcsigs-1.0.2.dist-info/	-	0755	rm
futures-3.0.3.dist-info/	-	0755	rm
futures-3.0.5.dist-info/	-	0755	rm
get-0.0.7-py2.6.egg-info/	-	0755	rm
glanceclient/	-	0755	rm
idna/	-	0755	rm
idna-2.0.dist-info/	-	0755	rm
idna-2.1-py2.6.egg/	-	0755	rm
iniparse/	-	0755	rm
iotop/	-	0755	rm
iotop-0.3.2-py2.6.egg-info/	-	0755	rm
ipaddress-1.0.14-py2.6.egg-info/	-	0755	rm
ipaddress-1.0.16-py2.6.egg/	-	0755	rm
iso8601/	-	0755	rm
iso8601-0.1.10-py2.6.egg-info/	-	0755	rm
iso8601-0.1.11.dist-info/	-	0755	rm
jsonpatch-1.2-py2.6.egg-info/	-	0755	rm
jsonpatch-1.11.dist-info/	-	0755	rm
jsonpatch-1.13.dist-info/	-	0755	rm
jsonpointer-1.9.dist-info/	-	0755	rm
jsonpointer-1.10.dist-info/	-	0755	rm
jsonschema/	-	0755	rm
jsonschema-2.5.1.dist-info/	-	0755	rm
keystoneauth1/	-	0755	rm
keystoneauth1-1.1.0.dist-info/	-	0755	rm
keystoneauth1-2.6.0.dist-info/	-	0755	rm
keystoneclient/	-	0755	rm
markdown/	-	0755	rm
monotonic-0.4-py2.6.egg-info/	-	0755	rm
monotonic-1.1.dist-info/	-	0755	rm
ndg/	-	0755	rm
ndg_httpsclient-0.4.0-py2.6.egg-info/	-	0755	rm
netaddr/	-	0755	rm
netaddr-0.7.18.dist-info/	-	0755	rm
neutronclient/	-	0755	rm
nose/	-	0755	rm
nose-0.10.4-py2.6.egg-info/	-	0755	rm
novaclient/	-	0755	rm
oauth/	-	0755	rm
oauth-1.0.1-py2.6.egg-info/	-	0755	rm
openstack/	-	0755	rm
openstackclient/	-	0755	rm
openstacksdk-0.8.5.dist-info/	-	0755	rm
oslo.config-2.4.0.dist-info/	-	0755	rm
oslo.config-3.9.0.dist-info/	-	0755	rm
oslo.i18n-2.6.0.dist-info/	-	0755	rm
oslo.i18n-3.6.0.dist-info/	-	0755	rm
oslo.serialization-1.9.0.dist-info/	-	0755	rm
oslo.serialization-2.4.0.dist-info/	-	0755	rm
oslo.utils-2.5.0.dist-info/	-	0755	rm
oslo.utils-3.8.0.dist-info/	-	0755	rm
oslo_config/	-	0755	rm
oslo_i18n/	-	0755	rm
oslo_serialization/	-	0755	rm
oslo_utils/	-	0755	rm
os_client_config/	-	0755	rm
os_client_config-1.8.1.dist-info/	-	0755	rm
os_client_config-1.17.0.dist-info/	-	0755	rm
pbr/	-	0755	rm
pbr-1.8.0.dist-info/	-	0755	rm
pbr-1.9.1.dist-info/	-	0755	rm
pip-7.1.2-py2.6.egg/	-	0755	rm
pip-8.1.1-py2.6.egg/	-	0755	rm
pkg_resources/	-	0755	rm
positional/	-	0755	rm
positional-1.1.0-py2.6.egg-info/	-	0755	rm
post-0.0.5-py2.6.egg-info/	-	0755	rm
prettytable-0.7.2-py2.6.egg-info/	-	0755	rm
public-0.0.0-py2.6.egg-info/	-	0755	rm
pyasn1/	-	0755	rm
pyasn1-0.0.12a-py2.6.egg-info/	-	0755	rm
pyasn1-0.1.9-py2.6.egg/	-	0755	rm
pyasn1-0.1.9.dist-info/	-	0755	rm
pycparser/	-	0755	rm
pycparser-2.14-py2.6.egg/	-	0755	rm
pycparser-2.14-py2.6.egg-info/	-	0755	rm
pygments/	-	0755	rm
Pygments-1.1.1-py2.6.egg-info/	-	0755	rm
pyparsing-2.0.3.dist-info/	-	0755	rm
pyparsing-2.1.1.dist-info/	-	0755	rm
python_cinderclient-1.4.0.dist-info/	-	0755	rm
python_cinderclient-1.6.0.dist-info/	-	0755	rm
python_dateutil-1.4.1-py2.6.egg-info/	-	0755	rm
python_glanceclient-1.1.0.dist-info/	-	0755	rm
python_glanceclient-2.0.0.dist-info/	-	0755	rm
python_keystoneclient-1.7.1.dist-info/	-	0755	rm
python_keystoneclient-2.3.1.dist-info/	-	0755	rm
python_neutronclient-3.1.0.dist-info/	-	0755	rm
python_novaclient-2.31.0.dist-info/	-	0755	rm
python_novaclient-4.0.0.dist-info/	-	0755	rm
python_openstackclient-1.7.1.dist-info/	-	0755	rm
python_openstackclient-2.4.0.dist-info/	-	0755	rm
python_swiftclient-2.6.0.dist-info/	-	0755	rm
python_swiftclient-3.0.0.dist-info/	-	0755	rm
pytz/	-	0755	rm
pytz-2015.6.dist-info/	-	0755	rm
pytz-2016.4.dist-info/	-	0755	rm
pyzor-1.0.0-py2.6.egg/	-	0755	rm
query_string-0.0.5-py2.6.egg-info/	-	0755	rm
repoze/	-	0755	rm
repoze.lru-0.6-py2.6.egg-info/	-	0755	rm
request-0.0.5-py2.6.egg-info/	-	0755	rm
requests/	-	0755	rm
requests-2.7.0.dist-info/	-	0755	rm
requests-2.9.1.dist-info/	-	0755	rm
requestsexceptions/	-	0755	rm
requestsexceptions-1.1.3.dist-info/	-	0755	rm
rhn/	-	0755	rm
rpmUtils/	-	0755	rm
rsa/	-	0755	rm
rsa-3.4.2-py2.6.egg-info/	-	0755	rm
self-0.0.5-py2.6.egg-info/	-	0755	rm
setools/	-	0755	rm
setuptools/	-	0755	rm
setuptools-20.10.1.dist-info/	-	0755	rm
six-1.9.0.dist-info/	-	0755	rm
six-1.10.0.dist-info/	-	0755	rm
sos/	-	0755	rm
stevedore/	-	0755	rm
stevedore-1.8.0.dist-info/	-	0755	rm
stevedore-1.12.0.dist-info/	-	0755	rm
supervisor/	-	0755	rm
swiftclient/	-	0755	rm
tablib/	-	0755	rm
tablib-0.10.0.dist-info/	-	0755	rm
unicodecsv/	-	0755	rm
unicodecsv-0.14.1-py2.6.egg-info/	-	0755	rm
urlgrabber/	-	0755	rm
urllib3/	-	0755	rm
urllib3-1.10.2-py2.6.egg-info/	-	0755	rm
urllib3-1.12.dist-info/	-	0755	rm
urllib3-1.15.1.dist-info/	-	0755	rm
warlock/	-	0755	rm
warlock-1.1.0-py2.6.egg-info/	-	0755	rm
warlock-1.2.0-py2.6.egg-info/	-	0755	rm
yum/	-	0755	rm
yumutils/	-	0755	rm
appdirs.py	22374	0755	edit dl rm
appdirs.pyc	20665	0644	edit dl rm
argparse.py	89214	0644	edit dl rm
argparse.pyc	66815	0644	edit dl rm
argparse.pyo	66491	0644	edit dl rm
chardet-2.0.1-py2.6.egg-info	1605	0644	edit dl rm
clsudo.py	12953	0644	edit dl rm
clsudo.pyc	11392	0644	edit dl rm
clsudo.pyo	11392	0644	edit dl rm
cmd2.py	65069	0644	edit dl rm
cmd2.pyc	65019	0644	edit dl rm
configobj-4.6.0-py2.6.egg-info	312	0644	edit dl rm
configobj.py	86447	0644	edit dl rm
configobj.pyc	66412	0644	edit dl rm
configobj.pyo	66412	0644	edit dl rm
dbus_bindings.py	33	0644	edit dl rm
dbus_bindings.pyc	185	0644	edit dl rm
dbus_bindings.pyo	185	0644	edit dl rm
decorator.py	15775	0644	edit dl rm
decorator.pyc	14485	0644	edit dl rm
dict.py	2239	0644	edit dl rm
dnspython-1.11.1-py2.6.egg-info	1280	0644	edit dl rm
easy-install.pth	276	0644	edit dl rm
easy_install.py	126	0644	edit dl rm
easy_install.pyc	317	0644	edit dl rm
easy_install.pyo	317	0644	edit dl rm
get.py	322	0644	edit dl rm
hwdata.py	8142	0644	edit dl rm
hwdata.pyc	6283	0644	edit dl rm
hwdata.pyo	6283	0644	edit dl rm
iniparse-0.3.1-py2.6.egg-info	1085	0644	edit dl rm
ipaddress.py	79659	0644	edit dl rm
ipaddress.pyc	75900	0644	edit dl rm
jsonpatch.py	15946	0644	edit dl rm
jsonpatch.pyc	17481	0644	edit dl rm
jsonpatch.pyo	17277	0644	edit dl rm
jsonpointer-1.0-py2.6.egg-info	302	0644	edit dl rm
jsonpointer.py	6610	0644	edit dl rm
jsonpointer.pyc	6368	0644	edit dl rm
jsonpointer.pyo	6368	0644	edit dl rm
libproxy.py	4330	0644	edit dl rm
libproxy.pyc	3990	0644	edit dl rm
libproxy.pyo	3990	0644	edit dl rm
lprettytable.py	23849	0755	edit dl rm
lprettytable.pyc	19619	0644	edit dl rm
lprettytable.pyo	19472	0644	edit dl rm
Markdown-2.0.1-py2.6.egg-info	1340	0644	edit dl rm
monotonic.py	5345	0644	edit dl rm
monotonic.pyc	5479	0644	edit dl rm
ndg_httpsclient-0.4.0-py2.6-nspkg.pth	296	0644	edit dl rm
ordereddict-1.1-py2.6.egg-info	183	0644	edit dl rm
ordereddict-1.2-py2.6.egg-info	183	0644	edit dl rm
ordereddict.py	4221	0644	edit dl rm
ordereddict.pyc	4421	0644	edit dl rm
ordereddict.pyo	4421	0644	edit dl rm
pciutils-2.3.5-py2.6.egg-info	242	0644	edit dl rm
pkg_resources.py	88196	0644	edit dl rm
pkg_resources.pyc	92875	0644	edit dl rm
pkg_resources.pyo	92875	0644	edit dl rm
post.py	226	0644	edit dl rm
prettytable.py	54204	0644	edit dl rm
prettytable.pyc	52252	0644	edit dl rm
prettytable.pyo	51266	0644	edit dl rm
public.py	4635	0644	edit dl rm
pyOpenSSL-0.15.1-py2.6.egg	235736	0644	edit dl rm
pyOpenSSL-16.0.0-py2.6.egg	94308	0644	edit dl rm
pyparsing.py	158256	0644	edit dl rm
pyparsing.pyc	157859	0644	edit dl rm
pytz-2010h-py2.6.egg-info	22577	0644	edit dl rm
query_string.py	840	0644	edit dl rm
README	119	0644	edit dl rm
repoze.lru-0.6-py2.6-nspkg.pth	307	0644	edit dl rm
request.py	207	0644	edit dl rm
requests-2.6.0-py2.6.egg-info	40357	0644	edit dl rm
rhnlib-2.5.22-py2.6.egg-info	339	0644	edit dl rm
secureio.py	9222	0644	edit dl rm
secureio.pyc	4721	0644	edit dl rm
secureio.pyo	4721	0644	edit dl rm
self.py	728	0644	edit dl rm
setuptools-0.6c11-py2.6.egg-info	144	0644	edit dl rm
setuptools-18.3.2-py2.6.egg	359033	0755	edit dl rm
setuptools-20.9.0-py2.6.egg	472832	0644	edit dl rm
setuptools.pth	34	0644	edit dl rm
site.py	2362	0644	edit dl rm
site.pyc	1771	0644	edit dl rm
site.pyo	1771	0644	edit dl rm
six.py	29664	0644	edit dl rm
six.pyc	29330	0644	edit dl rm
six.pyo	26911	0644	edit dl rm
supervisor-2.1-py2.6.egg-info	797	0644	edit dl rm
urlgrabber-3.9.1-py2.6.egg-info	2285	0644	edit dl rm
validate.py	46768	0644	edit dl rm
validate.pyc	47384	0644	edit dl rm
validate.pyo	47384	0644	edit dl rm

Edit: /usr/lib/python2.6/site-packages/decorator.py (15775B)

# #########################     LICENSE     ############################ #

# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:

#   Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
#   Redistributions in bytecode form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in
#   the documentation and/or other materials provided with the
#   distribution.

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.

"""
Decorator module, see http://pypi.python.org/pypi/decorator
for the documentation.
"""
from __future__ import print_function

import re
import sys
import inspect
import operator
import itertools
import collections

__version__ = '4.0.9'

if sys.version >= '3':
    from inspect import getfullargspec

def get_init(cls):
        return cls.__init__
else:
    class getfullargspec(object):
        "A quick and dirty replacement for getfullargspec for Python 2.X"
        def __init__(self, f):
            self.args, self.varargs, self.varkw, self.defaults = \
                inspect.getargspec(f)
            self.kwonlyargs = []
            self.kwonlydefaults = None

def __iter__(self):
            yield self.args
            yield self.varargs
            yield self.varkw
            yield self.defaults

getargspec = inspect.getargspec

def get_init(cls):
        return cls.__init__.__func__

# getargspec has been deprecated in Python 3.5
ArgSpec = collections.namedtuple(
    'ArgSpec', 'args varargs varkw defaults')

def getargspec(f):
    """A replacement for inspect.getargspec"""
    spec = getfullargspec(f)
    return ArgSpec(spec.args, spec.varargs, spec.varkw, spec.defaults)

DEF = re.compile('\s*def\s*([_\w][_\w\d]*)\s*\(')

# basic functionality
class FunctionMaker(object):
    """
    An object with the ability to create functions with a given signature.
    It has attributes name, doc, module, signature, defaults, dict and
    methods update and make.
    """

# Atomic get-and-increment provided by the GIL
    _compile_count = itertools.count()

def __init__(self, func=None, name=None, signature=None,
                 defaults=None, doc=None, module=None, funcdict=None):
        self.shortsignature = signature
        if func:
            # func can be a class or a callable, but not an instance method
            self.name = func.__name__
            if self.name == '<lambda>':  # small hack for lambda functions
                self.name = '_lambda_'
            self.doc = func.__doc__
            self.module = func.__module__
            if inspect.isfunction(func):
                argspec = getfullargspec(func)
                self.annotations = getattr(func, '__annotations__', {})
                for a in ('args', 'varargs', 'varkw', 'defaults', 'kwonlyargs',
                          'kwonlydefaults'):
                    setattr(self, a, getattr(argspec, a))
                for i, arg in enumerate(self.args):
                    setattr(self, 'arg%d' % i, arg)
                if sys.version < '3':  # easy way
                    self.shortsignature = self.signature = (
                        inspect.formatargspec(
                            formatvalue=lambda val: "", *argspec)[1:-1])
                else:  # Python 3 way
                    allargs = list(self.args)
                    allshortargs = list(self.args)
                    if self.varargs:
                        allargs.append('*' + self.varargs)
                        allshortargs.append('*' + self.varargs)
                    elif self.kwonlyargs:
                        allargs.append('*')  # single star syntax
                    for a in self.kwonlyargs:
                        allargs.append('%s=None' % a)
                        allshortargs.append('%s=%s' % (a, a))
                    if self.varkw:
                        allargs.append('**' + self.varkw)
                        allshortargs.append('**' + self.varkw)
                    self.signature = ', '.join(allargs)
                    self.shortsignature = ', '.join(allshortargs)
                self.dict = func.__dict__.copy()
        # func=None happens when decorating a caller
        if name:
            self.name = name
        if signature is not None:
            self.signature = signature
        if defaults:
            self.defaults = defaults
        if doc:
            self.doc = doc
        if module:
            self.module = module
        if funcdict:
            self.dict = funcdict
        # check existence required attributes
        assert hasattr(self, 'name')
        if not hasattr(self, 'signature'):
            raise TypeError('You are decorating a non function: %s' % func)

def update(self, func, **kw):
        "Update the signature of func with the data in self"
        func.__name__ = self.name
        func.__doc__ = getattr(self, 'doc', None)
        func.__dict__ = getattr(self, 'dict', {})
        func.__defaults__ = getattr(self, 'defaults', ())
        func.__kwdefaults__ = getattr(self, 'kwonlydefaults', None)
        func.__annotations__ = getattr(self, 'annotations', None)
        try:
            frame = sys._getframe(3)
        except AttributeError:  # for IronPython and similar implementations
            callermodule = '?'
        else:
            callermodule = frame.f_globals.get('__name__', '?')
        func.__module__ = getattr(self, 'module', callermodule)
        func.__dict__.update(kw)

def make(self, src_templ, evaldict=None, addsource=False, **attrs):
        "Make a new function from a given template and update the signature"
        src = src_templ % vars(self)  # expand name and signature
        evaldict = evaldict or {}
        mo = DEF.match(src)
        if mo is None:
            raise SyntaxError('not a valid function template\n%s' % src)
        name = mo.group(1)  # extract the function name
        names = set([name] + [arg.strip(' *') for arg in
                              self.shortsignature.split(',')])
        for n in names:
            if n in ('_func_', '_call_'):
                raise NameError('%s is overridden in\n%s' % (n, src))

if not src.endswith('\n'):  # add a newline for old Pythons
            src += '\n'

# Ensure each generated function has a unique filename for profilers
        # (such as cProfile) that depend on the tuple of (<filename>,
        # <definition line>, <function name>) being unique.
        filename = '<decorator-gen-%d>' % (next(self._compile_count),)
        try:
            code = compile(src, filename, 'single')
            exec(code, evaldict)
        except:
            print('Error in generated code:', file=sys.stderr)
            print(src, file=sys.stderr)
            raise
        func = evaldict[name]
        if addsource:
            attrs['__source__'] = src
        self.update(func, **attrs)
        return func

@classmethod
    def create(cls, obj, body, evaldict, defaults=None,
               doc=None, module=None, addsource=True, **attrs):
        """
        Create a function from the strings name, signature and body.
        evaldict is the evaluation dictionary. If addsource is true an
        attribute __source__ is added to the result. The attributes attrs
        are added, if any.
        """
        if isinstance(obj, str):  # "name(signature)"
            name, rest = obj.strip().split('(', 1)
            signature = rest[:-1]  # strip a right parens
            func = None
        else:  # a function
            name = None
            signature = None
            func = obj
        self = cls(func, name, signature, defaults, doc, module)
        ibody = '\n'.join('    ' + line for line in body.splitlines())
        return self.make('def %(name)s(%(signature)s):\n' + ibody,
                         evaldict, addsource, **attrs)

def decorate(func, caller):
    """
    decorate(func, caller) decorates a function using a caller.
    """
    evaldict = dict(_call_=caller, _func_=func)
    fun = FunctionMaker.create(
        func, "return _call_(_func_, %(shortsignature)s)",
        evaldict, __wrapped__=func)
    if hasattr(func, '__qualname__'):
        fun.__qualname__ = func.__qualname__
    return fun

def decorator(caller, _func=None):
    """decorator(caller) converts a caller function into a decorator"""
    if _func is not None:  # return a decorated function
        # this is obsolete behavior; you should use decorate instead
        return decorate(_func, caller)
    # else return a decorator function
    if inspect.isclass(caller):
        name = caller.__name__.lower()
        doc = 'decorator(%s) converts functions/generators into ' \
            'factories of %s objects' % (caller.__name__, caller.__name__)
    elif inspect.isfunction(caller):
        if caller.__name__ == '<lambda>':
            name = '_lambda_'
        else:
            name = caller.__name__
        doc = caller.__doc__
    else:  # assume caller is an object with a __call__ method
        name = caller.__class__.__name__.lower()
        doc = caller.__call__.__doc__
    evaldict = dict(_call_=caller, _decorate_=decorate)
    return FunctionMaker.create(
        '%s(func)' % name, 'return _decorate_(func, _call_)',
        evaldict, doc=doc, module=caller.__module__,
        __wrapped__=caller)

# ####################### contextmanager ####################### #

try:  # Python >= 3.2
    from contextlib import _GeneratorContextManager
except ImportError:  # Python >= 2.5
    from contextlib import GeneratorContextManager as _GeneratorContextManager

class ContextManager(_GeneratorContextManager):
    def __call__(self, func):
        """Context manager decorator"""
        return FunctionMaker.create(
            func, "with _self_: return _func_(%(shortsignature)s)",
            dict(_self_=self, _func_=func), __wrapped__=func)

init = getfullargspec(_GeneratorContextManager.__init__)
n_args = len(init.args)
if n_args == 2 and not init.varargs:  # (self, genobj) Python 2.7
    def __init__(self, g, *a, **k):
        return _GeneratorContextManager.__init__(self, g(*a, **k))
    ContextManager.__init__ = __init__
elif n_args == 2 and init.varargs:  # (self, gen, *a, **k) Python 3.4
    pass
elif n_args == 4:  # (self, gen, args, kwds) Python 3.5
    def __init__(self, g, *a, **k):
        return _GeneratorContextManager.__init__(self, g, a, k)
    ContextManager.__init__ = __init__

contextmanager = decorator(ContextManager)

# ############################ dispatch_on ############################ #

def append(a, vancestors):
    """
    Append ``a`` to the list of the virtual ancestors, unless it is already
    included.
    """
    add = True
    for j, va in enumerate(vancestors):
        if issubclass(va, a):
            add = False
            break
        if issubclass(a, va):
            vancestors[j] = a
            add = False
    if add:
        vancestors.append(a)

# inspired from simplegeneric by P.J. Eby and functools.singledispatch
def dispatch_on(*dispatch_args):
    """
    Factory of decorators turning a function into a generic function
    dispatching on the given arguments.
    """
    assert dispatch_args, 'No dispatch args passed'
    dispatch_str = '(%s,)' % ', '.join(dispatch_args)

def check(arguments, wrong=operator.ne, msg=''):
        """Make sure one passes the expected number of arguments"""
        if wrong(len(arguments), len(dispatch_args)):
            raise TypeError('Expected %d arguments, got %d%s' %
                            (len(dispatch_args), len(arguments), msg))

def gen_func_dec(func):
        """Decorator turning a function into a generic function"""

# first check the dispatch arguments
        argset = set(getfullargspec(func).args)
        if not set(dispatch_args) <= argset:
            raise NameError('Unknown dispatch arguments %s' % dispatch_str)

typemap = {}

def vancestors(*types):
            """
            Get a list of sets of virtual ancestors for the given types
            """
            check(types)
            ras = [[] for _ in range(len(dispatch_args))]
            for types_ in typemap:
                for t, type_, ra in zip(types, types_, ras):
                    if issubclass(t, type_) and type_ not in t.__mro__:
                        append(type_, ra)
            return [set(ra) for ra in ras]

def ancestors(*types):
            """
            Get a list of virtual MROs, one for each type
            """
            check(types)
            lists = []
            for t, vas in zip(types, vancestors(*types)):
                n_vas = len(vas)
                if n_vas > 1:
                    raise RuntimeError(
                        'Ambiguous dispatch for %s: %s' % (t, vas))
                elif n_vas == 1:
                    va, = vas
                    mro = type('t', (t, va), {}).__mro__[1:]
                else:
                    mro = t.__mro__
                lists.append(mro[:-1])  # discard t and object
            return lists

def register(*types):
            """
            Decorator to register an implementation for the given types
            """
            check(types)
            def dec(f):
                check(getfullargspec(f).args, operator.lt, ' in ' + f.__name__)
                typemap[types] = f
                return f
            return dec

def dispatch_info(*types):
            """
            An utility to introspect the dispatch algorithm
            """
            check(types)
            lst = []
            for anc in itertools.product(*ancestors(*types)):
                lst.append(tuple(a.__name__ for a in anc))
            return lst

def _dispatch(dispatch_args, *args, **kw):
            types = tuple(type(arg) for arg in dispatch_args)
            try:  # fast path
                f = typemap[types]
            except KeyError:
                pass
            else:
                return f(*args, **kw)
            combinations = itertools.product(*ancestors(*types))
            next(combinations)  # the first one has been already tried
            for types_ in combinations:
                f = typemap.get(types_)
                if f is not None:
                    return f(*args, **kw)

# else call the default implementation
            return func(*args, **kw)

return FunctionMaker.create(
            func, 'return _f_(%s, %%(shortsignature)s)' % dispatch_str,
            dict(_f_=_dispatch), register=register, default=func,
            typemap=typemap, vancestors=vancestors, ancestors=ancestors,
            dispatch_info=dispatch_info, __wrapped__=func)

gen_func_dec.__name__ = 'dispatch_on' + dispatch_str
    return gen_func_dec

cmd: