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authorMarc Abramowitz <marc@marc-abramowitz.com>2016-03-07 14:05:52 -0800
committerMarc Abramowitz <marc@marc-abramowitz.com>2016-03-07 14:05:52 -0800
commit42b22881290e00e06b840dee1e42f0f5ef044d47 (patch)
treeb4fef928625acd3e8ee45ccaa8c7a6c9810b3601 /paste/util/classinstance.py
downloadpaste-git-tox_add_py35.tar.gz
tox.ini: Add py35 to envlisttox_add_py35
Diffstat (limited to 'paste/util/classinstance.py')
-rw-r--r--paste/util/classinstance.py38
1 files changed, 38 insertions, 0 deletions
diff --git a/paste/util/classinstance.py b/paste/util/classinstance.py
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+# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
+# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
+
+class classinstancemethod(object):
+ """
+ Acts like a class method when called from a class, like an
+ instance method when called by an instance. The method should
+ take two arguments, 'self' and 'cls'; one of these will be None
+ depending on how the method was called.
+ """
+
+ def __init__(self, func):
+ self.func = func
+ self.__doc__ = func.__doc__
+
+ def __get__(self, obj, type=None):
+ return _methodwrapper(self.func, obj=obj, type=type)
+
+class _methodwrapper(object):
+
+ def __init__(self, func, obj, type):
+ self.func = func
+ self.obj = obj
+ self.type = type
+
+ def __call__(self, *args, **kw):
+ assert 'self' not in kw and 'cls' not in kw, (
+ "You cannot use 'self' or 'cls' arguments to a "
+ "classinstancemethod")
+ return self.func(*((self.obj, self.type) + args), **kw)
+
+ def __repr__(self):
+ if self.obj is None:
+ return ('<bound class method %s.%s>'
+ % (self.type.__name__, self.func.func_name))
+ else:
+ return ('<bound method %s.%s of %r>'
+ % (self.type.__name__, self.func.func_name, self.obj))