Hello. We are sorry but we cannot help you. This mailing list is to work on developing Python (adding new features to Python itself and fixing bugs); if you're having problems learning, understanding or using Python, please find another forum. Probably python-list/comp.lang.python mailing list/news group is the best place; there are Python developers who participate in it; you may get a faster, and probably more complete, answer there. See http://www.python.org/community/ for other lists/news groups/fora. Thank you for understanding. On Tue, Jan 10, 2012 at 01:32:13AM +1100, Jon Wells wrote:

I can't find an answer to this grovelling through get user info. on descriptors.

Read carefully http://users.rcn.com/python/download/Descriptor.htm

Assuming desc() is a data descriptor class why are the following not the same???

class poop(object): var = desc()

and

class poop(object): def __init__(self): self.var = desc()

In the second form the descriptor protocol for access to 'var' is ignored.

From http://users.rcn.com/python/download/Descriptor.htm: ...transforms b.x into type(b).__dict__['x'].__get__(b, type(b)).. Please note the first type(b). Oleg. -- Oleg Broytman http://phdru.name/ phd@phdru.name Programmers don't die, they just GOSUB without RETURN.

Hello. We are sorry but we cannot help you. This mailing list is to work on developing Python (adding new features to Python itself and fixing bugs); if you're having problems learning, understanding or using Python, please find another forum. Probably python-list/comp.lang.python mailing list/news group is the best place; there are Python developers who participate in it; you may get a faster, and probably more complete, answer there. See http://www.python.org/community/ for other lists/news groups/fora. Thank you for understanding. On Tue, Jan 10, 2012 at 01:32:13AM +1100, Jon Wells wrote:

I can't find an answer to this grovelling through get user info. on descriptors.

Read carefully http://users.rcn.com/python/download/Descriptor.htm

Assuming desc() is a data descriptor class why are the following not the same???

class poop(object): var = desc()

and

class poop(object): def __init__(self): self.var = desc()

In the second form the descriptor protocol for access to 'var' is ignored.

From http://users.rcn.com/python/download/Descriptor.htm: ...transforms b.x into type(b).__dict__['x'].__get__(b, type(b)).. Please note the first type(b). Oleg. -- Oleg Broytman http://phdru.name/ phd@phdru.name Programmers don't die, they just GOSUB without RETURN.