Re: [Python-Dev] Dealing with import lock deadlock in Import Hooks

2013-08-18 Thread Arnaud Fontaine
Antoine Pitrou writes: > Le Wed, 14 Aug 2013 14:17:59 +0900, Arnaud Fontaine > a écrit : >> From my understanding of import.c source code, until something is >> added to sys.modules or the code loaded, there should be no >> side-effect to releasing the lock, right? (eg there is no global >> vari

Re: [Python-Dev] cpython: Use a known unique object for the dummy entry.

2013-08-18 Thread Antoine Pitrou
On Sun, 18 Aug 2013 17:31:24 +0100 Mark Shannon wrote: > > By giving the dummy object a custom type, the dummy object can be > recognised by testing that its type equals PySetDummy_Type (or > whatever it is called) > > See dictobject.c for an implementation of a suitable dummy object. The most

Re: [Python-Dev] cpython: Use a known unique object for the dummy entry.

2013-08-18 Thread Mark Shannon
On 17/08/13 19:42, Antoine Pitrou wrote: On Sat, 17 Aug 2013 11:32:00 +0200 (CEST) raymond.hettinger wrote: http://hg.python.org/cpython/rev/2c9a2b588a89 changeset: 85218:2c9a2b588a89 user:Raymond Hettinger date:Sat Aug 17 02:31:53 2013 -0700 summary: Use a known unique o

Re: [Python-Dev] cpython: Use a known unique object for the dummy entry.

2013-08-18 Thread Antoine Pitrou
On Sun, 18 Aug 2013 09:03:56 +0200 Armin Rigo wrote: > Hi, > > On Sat, Aug 17, 2013 at 8:42 PM, Antoine Pitrou wrote: > >> summary: > >> Use a known unique object for the dummy entry. > > Another issue with this change: the dummy object should be of a dummy > subclass of 'object', rather than

Re: [Python-Dev] cpython: Use a known unique object for the dummy entry.

2013-08-18 Thread Armin Rigo
Hi, On Sat, Aug 17, 2013 at 8:42 PM, Antoine Pitrou wrote: >> summary: >> Use a known unique object for the dummy entry. Another issue with this change: the dummy object should be of a dummy subclass of 'object', rather than of 'object' itself. When it is 'object' itself, a custom __eq__() me