[issue19032] __reduce_ex__ on lock object

2013-09-18 Thread Raymond Hettinger 

Raymond Hettinger added the comment:

This does not look like a bug to me.
I think this should be closed.

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nosy: +rhettinger

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[issue19032] __reduce_ex__ on lock object

2013-09-18 Thread Ram Rachum 

Changes by Ram Rachum r...@rachum.com:


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status: open - closed

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[issue19032] __reduce_ex__ on lock object

2013-09-16 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

I don't really know. It simply looks like the default implementation of 
__reduce_ex__. Is it important?

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[issue19032] __reduce_ex__ on lock object

2013-09-16 Thread Ram Rachum 

Ram Rachum added the comment:

I use that to test whether an object is pickleable or not. It used to work in 
Python 2.

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[issue19032] __reduce_ex__ on lock object

2013-09-16 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

 I use that to test whether an object is pickleable or not. It used to
 work in Python 2.

Well, the obvious way to do it would be to call pickle.dumps() on
the object, IMO :-)

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[issue19032] __reduce_ex__ on lock object

2013-09-16 Thread Ram Rachum 

Ram Rachum added the comment:

Wrong, because the object itself could be pickleable but refer to a different 
object which is non-pickleable. I want to know whether the object itself, 
without any object it refers to, is pickleable.

Also, pickling an object could be very resource-intensive, depending on its 
size.

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[issue19032] __reduce_ex__ on lock object

2013-09-16 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

 Wrong, because the object itself could be pickleable but refer to a
 different object which is non-pickleable. I want to know whether the
 object itself, without any object it refers to, is pickleable.

I think you're being too picky. Unless you're manually added stuff
to your Lock's attributes, there isn't a practical difference between
the two situations.

 Also, pickling an object could be very resource-intensive, depending
 on its size.

Well, this is a Lock here, not an ISO file.

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[issue19032] __reduce_ex__ on lock object

2013-09-15 Thread Ram Rachum 

New submission from Ram Rachum:

 import threading
 l = threading.Lock()
 l.__reduce_ex__(3)
(function __newobj__ at 0x026CD8C8,
 (class '_thread.lock',),
 None,
 None,
 None)

Isn't it a bug that `__reduce_ex__` works on the non-pickleable lock object?

--
components: Library (Lib)
messages: 197850
nosy: cool-RR
priority: normal
severity: normal
status: open
title: __reduce_ex__ on lock object
type: behavior
versions: Python 3.3

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