[Python-Dev] Case-sensitive import

[Tim Peters]

[Jack Jansen]
> Why don't we handle this the same way as, say, PyOS_CheckStack()?
>
> I.e. if USE_CHECK_IMPORT_CASE is defined it is necessary to check 
> the case of  the imported file (i.e. it's not defined on vanilla 
> unix, defined on most  other platforms) and if it is defined we call
> PyOS_CheckCase(filename, modulename).
> All these routines can be in different files, for all I care, 
> similar to the dynload_*.c files.

A. I want the code in the CVS tree.  That some of your Mac code is
   not in the CVS tree creates problems for everyone (we can never
   guess whether we're breaking your code because we have no idea
   what your code is).

B. PyOS_CheckCase() is not of general use.  It's only of interest
   inside import.c, so it's better to live there as a static function.

C. I very much enjoyed getting rid of the obfuscating #ifdef
   CHECK_IMPORT_CASE blocks in import.c!  This code is hard enough to
   follow without distributing preprocessor tricks all over the
   place.  Now they live only inside the body of case_ok(), where
   they're truly needed.  That is, case_ok() is a perfectly sensible
   cross-platfrom abstraction, and *calling* code doesn't need to
   be bothered with how it's implemented-- or even whether it's
   needed --on various platfroms.  On Linux, case_ok() reduces to
   the one-liner "return 1;", and I don't mind paying a function
   call in return for the increase in clarity inside find_module().

D. The schedule says we release the beta tomorrow <0.6 wink>.