Barry Warsaw wrote: > On Feb 03, 2010, at 11:59 AM, M.-A. Lemburg wrote: > >> How about using an optionally relative cache dir setting to let >> the user decide ? > > Why do we need that level of flexibility?
It's very easy to implement (see the code I posted) and gives you a lot of control with a single env variable. Some use cases: 1. PYTHONCACHE=. (store the cache files in the same dir as the .py file) This settings mimics what we've had in Python for decades. Users know about this Python behavior and expect it. It's also the only reasonable way of shipping byte-code only packages. 2. PYTHONCACHE=.pycache (store the cache files in a subdir of the dir where the .py file is stored) When using lots of cache files for multiple Python versions or variants, .py source code directory can easily get cluttered with too many such files. Putting them into a subdir solves this problem. This would be useful for developers running and testing the code with different Python versions. 3. PYTHONCACHE=~/.python/cache (store the cache files in a user dir, outside the Python source file dir) This allows easy removal of all cache files and prevents cluttering up the sys.path dirs with cache files or directories altogether. It's also handy if the source code dirs are not writable by the user importing them. OTOH, every user would create a copy of the cache files (this is what currently happens with setuptools eggs and is very annoying). -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Feb 07 2010) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ ::: Try our new mxODBC.Connect Python Database Interface for free ! :::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com