E&S CVS Commit: setuptools - Added basic 'Require()' class that can check whether a requirement is

pje at eby-sarna.com pje at eby-sarna.com
Mon Mar 8 15:08:00 EST 2004

Module Name:	setuptools
Committed By:	pje
Date:		Mon Mar  8 20:07:25 UTC 2004

Modified Files:
	setuptools/setuptools/tests: __init__.py
Added Files:
	setuptools/setuptools: depends.py

Log Message:
Added basic 'Require()' class that can check whether a requirement is
installed in a particular location or set of locations, and up-to-date.
Smart defaults make most version checks trivial, e.g.:




The first line checks whether the 'some.thing' module defines a
'__version__' constant that compares >='1.2' (using smart version parsing
from 'distutils.version').  The second checks whether 'other.thing' defines
'someFunc'.  (This latter form ('requested_version=None') is used to do
version sniffing on modules that don't define a version attribute.)
The third format just checks for the existence of the named module.

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To generate a diff of this commit:
cvs rdiff -r0 -r1.1 setuptools/setuptools/depends.py
cvs rdiff -r1.3 -r1.4 setuptools/setuptools/tests/__init__.py

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