[Python-Dev] The "lazy strings" patch

Nick Coghlan ncoghlan at gmail.com
Tue Oct 24 12:59:31 CEST 2006

Jean-Paul Calderone wrote:
> On Mon, 23 Oct 2006 07:58:25 -0700, Larry Hastings <larry at hastings.org> wrote:
>> [snip]
>> If external Python extension modules are as well-behaved as the shipping 
>> Python source tree, there simply wouldn't be a problem.  Python source is 
>> delightfully consistent about using the macro PyString_AS_STRING() to get at 
>> the creamy char *center of a PyStringObject *.  When code religiously uses 
>> that macro (or calls PyString_AsString() directly), all it needs is a 
>> recompile with the current stringobject.h and it will Just Work.
>> I genuinely don't know how many external Python extension modules are well- 
>> behaved in this regard.  But in case it helps: I just checked PIL, NumPy, 
>> PyWin32, and SWIG, and all of them were well-behaved.
> FWIW, http://www.google.com/codesearch?q=+ob_sval

Possible more enlightening (we *know* string objects play with this field!):



Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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