At 10:09 AM 7/12/2007 +0200, Martin v. Löwis wrote:
>"" should not be removed from sys.path. It is *not* meant to be
>the current directory, but the directory where the main script
>lives.

Right; it should be replaced with the zipfile path instead.

I would personally rather see this option defined as simply placing a 
directory at the front of sys.path, and perhaps defining a default -m 
value of __main__, unless overrridden.  Being able to use the option 
more than once would be nice, too.  On Windows, you can't set an 
environment variable on the same line as a command, so this would 
give you a one-liner way of setting sys.path and running an application.

I do not see a reason to make this option zipfile-specific in any 
way, though; it's just as useful (and sometimes more so) to be able 
to distribute an application as a directory, since that lets you use 
.pyd, .so, .dll etc. without needing the egg cache system for using those.


>Why that? Why do eggs fail to process $0 correctly, whereas the
>-z option gets it correct? That just sounds like a bug in eggs
>to me, that could be fixed - or, if not, I'd expect that -z
>cannot fix it, either.
>
>My understanding of this note is that
>pkg_resources uses sys.argv[0] to determine the version number
>of the egg; IIUC, -z won't help at all here because sys.argv[0]
>will still be the name of the symlink.

That's correct; it will not help.  A change in the zipped .egg format 
is required, but could be done.  If the option is added (again, 
without being zipfile-specific!) then there is a reason for me to 
make the change.

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