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python Programming Glossary: issubclasshttp://stackoverflow.com/questions/11690597/there-is-a-class-matplotlib-axes-axessubplot-but-the-module-matplotlib-axes-has b type ax import matplotlib.axes issubclass b matplotlib.axes.SubplotBase True share improve this answer..
Python: List all base classes in a hierarchy http://stackoverflow.com/questions/1401661/python-list-all-base-classes-in-a-hierarchy the base classes anywhere in the inheritance hierarchy it issubclass of python class inheritance oop introspection share improve..
What's the canonical way to check for type in python? http://stackoverflow.com/questions/152580/whats-the-canonical-way-to-check-for-type-in-python The following also works and can be useful in some cases issubclass type o str type o in str str.__subclasses__ See Built in Functions..
Differences between isinstance() and type() in python http://stackoverflow.com/questions/1549801/differences-between-isinstance-and-type-in-python versions do however offer extra goodies isinstance and issubclass can now mean more than just an instance of a derived class in.. as UserDict.DictMixin is that they make isinstance and issubclass much more attractive and pervasive in Python 2.6 and going forward..
super() fails with error: TypeError “argument 1 must be type, not classobj” http://stackoverflow.com/questions/1713038/super-fails-with-error-typeerror-argument-1-must-be-type-not-classobj obj type super type type2 bound super object requires issubclass type2 type Typical use to call a cooperative superclass method..
http://stackoverflow.com/questions/2771904/usage-of-python-3-super obj type super type type2 bound super object requires issubclass type2 type Until now I've used super only without arguments..
python circular imports once again (aka what's wrong with this design) http://stackoverflow.com/questions/3955790/python-circular-imports-once-again-aka-whats-wrong-with-this-design test.team import team class user def setTeam self t if issubclass t team.__class__ self.team t test team.py from test.user import.. test.user import user class team def setLeader self u if issubclass u user.__class__ self.leader u Now of course i've got circular.. def __settattr__ self name value if name in self._defs if issubclass value.__class__ self._defs name self._data name value # more..
How to handle “duck typing” in Python? http://stackoverflow.com/questions/6589967/how-to-handle-duck-typing-in-python To me this feels more like Java than Python and using issubclass in each method doesn't sound very tempting either. My preferred..
Why is bool a subclass of int? http://stackoverflow.com/questions/8169001/why-is-bool-a-subclass-of-int shell and noticed the following isinstance True int True issubclass bool int True But why exactly is bool a subclass of int It kind..
Suppressing treatment of string as iterable http://stackoverflow.com/questions/9168904/suppressing-treatment-of-string-as-iterable away somewhere in a class. def iterate_no_strings item if issubclass item str # issubclass item basestring for Py 2.x return iter.. def iterate_no_strings item if issubclass item str # issubclass item basestring for Py 2.x return iter item else return iter..
super() raises “TypeError: must be type, not classobj” for new-style class http://stackoverflow.com/questions/9698614/super-raises-typeerror-must-be-type-not-classobj-for-new-style-class i.e. object is class OldStyle pass instance OldStyle issubclass instance.__class__ object False and not as in the question isinstance.. For classes the correct is this a new style class test is issubclass OldStyle object # OldStyle is not a new style class False issubclass.. OldStyle object # OldStyle is not a new style class False issubclass int object # int is a new style class True The crucial point..
Instance is an “object”, but class is not a subclass of “object”: how is this possible? http://stackoverflow.com/questions/9699591/instance-is-an-object-but-class-is-not-a-subclass-of-object-how-is-this-po subclass of object here is an example class OldStyle pass issubclass OldStyle object False old_style OldStyle isinstance old_style.. class A pass class B A pass b B assert b.__class__ is B issubclass b.__class__ A # same as issubclass B A True issubclass type.. assert b.__class__ is B issubclass b.__class__ A # same as issubclass B A True issubclass type b A False type b type 'instance' b.__class__..
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