Hi Martin,
Thanks for taking the time to look at my code.
"Martin v. Loewis" wrote:
> Section zlib, "will fail with a message":
>
> Is this still current? Looking at the implementation, it seems that
> you'll rather get an import error, which sounds much better.
Yes, you are right. If a module is found in a zip file, and the
zip module is compressed, and zlib is unavailable, then get_zip_string()
fails with PyExc_ValueError (and a message), and the import fails.
> Section Booting
>
> Looking at the implementation, it appears that PyImport_InitZip
> already invokes PyImport_ImportModule. Is there a mechanism that
> prevents ZIP import from being used while it is not ready yet?
At the point that PyImport_ImportModule("os") is called, zip
imports are ready. Specifically, python22.zip has been added
to sys.path, and zlib has been imported. The attempted import
of the "os" module can be satisfied from a zip archive or from
a directory.
We are attempting to import the os module to support caching of
directory contents using os.listdir(). This would cause an
infinite loop except for the use of the use_os_listdir flag.
This flag is zero if os.listdir has not yet been imported.
It is 1 if os.listdir is available, and -1 if it is unavailable.
JimA
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