At 02:23 PM 4/7/2009 -0400, Jim Fulton wrote:

On Apr 7, 2009, at 9:28 AM, P.J. Eby wrote:

At 11:54 PM 4/7/2009 +1200, Noah Gift wrote:
1.  In the case of entry points for setuptools, it actually recurses
into EVERY egg directory in your path, not just the egg you
requested,
adds them to your sys.path and additionally looks for four files
inside of every egg.  On a laptop on local storage, this doesn't
matter, but when thousands of machines hit the same filer, with many
python processes, bad things happen...

Install your eggs with --multi-version, and then only the eggs that
are required for the running script will be added to sys.path or
have their contents opened.  (Installing them as zip files rather
than directories may also speed this up.)


My experience on Linux is that installing eggs as Zip files slows
imports.

In general, perhaps. But if they're not actually *on* sys.path, as I proposed above, then it should not slow down all imports, and instead should speed up the entry point lookups. Were your tests using --multi-version install (i.e., eggs not on sys.path)?
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