Please reply inline; top posting is harder to read.
On Fri, Mar 12, 2010 at 12:15 AM, Gabriel Genellina
<gagsl-...@yahoo.com.ar>wrote:
En Thu, 11 Mar 2010 01:47:30 -0300, Radhakrishna Bhat
<radhakrishn...@gmail.com> escribió:
I am using getattr to get a method instance from a class. But it also
returns methods from the superclass. How to detect if an attribute is
from
superclass?
You may look it up directly in the class dictionary (__dict__)
En Sat, 03 Apr 2010 13:37:45 -0300, Radhakrishna Bhat
<radhakrishn...@gmail.com> escribió:>
thanks. It is working for simple classes. But now i am trying for complex
objects.
myclassinstance.__class__.dict__ returns <dictproxy object at %$^%>
Looping through the same returned dictproxy gives attributes of
superclass.
What am i doing wrong?
Could you provide a failing example?
It works for me in this case:
py> class MyClass(int):
... "This is my derived class"
... foo = 1
... def bar(self): pass
...
py> MyClass
<class '__main__.MyClass'>
py> MyClass.__dict__
<dictproxy object at 0x00C158F0>
py> MyClass.__dict__.keys()
['__module__', 'bar', '__dict__', 'foo', '__weakref__', '__doc__']
py> for name in MyClass.__dict__:
... print '%s: %.30r %.30r' % (name, getattr(MyClass,name),
getattr(int,name,'*does*not*exist*'))
...
__module__: '__main__' '__builtin__'
bar: <unbound method MyClass.bar> '*does*not*exist*'
__dict__: <dictproxy object at 0x00C15E7 <dictproxy object at 0x00C158F
foo: 1 '*does*not*exist*'
__weakref__: <attribute '__weakref__' of 'M '*does*not*exist*'
__doc__: 'This is my derived class' 'int(x[, base]) -> integer\n\n
foo and bar are new attributes. __module__, __dict__, __weakref__ and
__doc__ are different from the base class.
If you want to filter out the last four:
- ignore all attribute names starting and ending with two underscores:
if name[:2] == '__' == name[-2:]: continue
- ignore all attributes already present in the base class.
if hasattr(int, name): continue
--
Gabriel Genellina
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