Traversing the properties of a Class

[Bruno Desthuilliers]

EdG a écrit :
(top-post corrected)
> 
> Neil Cerutti wrote:
> 
>>On 2007-01-18, EdG <edquichan at yahoo.com> wrote:
>>
>>>For debugging purposes, I would like to traverse the class
>>>listing out all the properties.
>>
>>This is the first thing that came to mind.
>>
>>def show_properties(cls):
>>  for attr in dir(cls):
>>    if isinstance(getattr(cls, attr), property):
>>      print attr
>>

 > This works great.  I have one more question.  Now that I have the name
 > of the property, how do I get it's value?
 >
 > I want to print  '%s = %s' % (attr,theattributesvalue)


Then you need to have the instance...

def list_properties(cls):
   return [
     name for name in dir(cls)
     if isinstance(getattr(cls, name), property)
   ]

def print_properties(obj):
   for name in list_properties(obj.__class__):
     print "%s : %s" % (name, str(getattr(obj, name)))