[tahoe-dev] [tahoe-lafs] #801: Investigate Py_ssize_t behavior in wrappers for CPython < 2.5

[tahoe-lafs]

#801: Investigate Py_ssize_t behavior in wrappers for CPython < 2.5
--------------------------+-------------------------------------------------
 Reporter:  nejucomo      |           Owner:  nobody   
     Type:  task          |          Status:  new      
 Priority:  minor         |       Milestone:  undecided
Component:  unknown       |         Version:  1.5.0    
 Keywords:  wrapper cast  |   Launchpad_bug:           
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 Py_ssize_t was introduced in CPython 2.5 in Pep 353 [1].  Older Python
 wrappers treated sizes inconsistently.

 This ticket is closed when:

 a. An explanation is given of how wrapper code that relies on Py_ssize_t
 compiles in pre 2.5 environments (start with [2]).

 b. A unit test is written which determines if code relying on Py_ssize_t
 behaves correctly on < 2.5 and >= 2.5 platforms.

 c. If the unit test shows no distinction between the two version cases, an
 explanation of why there's no failure in all cases.  Otherwise, jump to
 step b and devise a new unit test.

 d. A ticket is opened for each created failing unit test.

 [1] http://www.python.org/dev/peps/pep-0353/
 [2] http://www.google.com/search?q=Py_ssize_t

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Ticket URL: <http://allmydata.org/trac/tahoe/ticket/801>
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