[Python-bugs-list] [ python-Bugs-576990 ] inheriting from property and docstrings

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Bugs item #576990, was opened at 2002-07-03 14:42
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=576990&group_id=5470

Category: Python Interpreter Core
Group: Python 2.2.1
Status: Open
Resolution: None
Priority: 5
Submitted By: Roeland Rengelink (rengelink)
Assigned to: Nobody/Anonymous (nobody)
Summary: inheriting from property and docstrings

Initial Comment:
If I inherit from property, and try to initialize a derived   
property object, the doc string doesn't get set. This bug   
was introduced in 2.2.1, and is present in 2.3a0:   
   
Compare:   
   
Python 2.2 (#1, Mar 26 2002, 15:46:04)   
[GCC 2.95.3 20010315 (SuSE)] on linux2   
Type "help", "copyright", "credits" or "license" for more   
information.   
>>> class myprop(property):pass   
...   
>>> a = myprop(None, None, None, 'hi')   
>>> print a.__doc__   
hi   
   
and,   
   
Python 2.2.1 (#1, Jun 16 2002, 16:19:48)   
[GCC 2.95.3 20010315 (SuSE)] on linux2   
Type "help", "copyright", "credits" or "license" for more   
information.   
>>> class myprop(property):pass   
...   
>>> a = myprop(None, None, None, 'hi')   
>>> print a.__doc__   
None   
   
There is no problem with the getter/setter functions  
passed to the constructor.  i.e.: myprop(f,g,h,None) works   
identical in 2.2 and 2.2.1   
 
Good luck, 
 
Roeland Rengelink   
   
   

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