parameters from configuration files

I have a script that potentially takes a huge number of parameters.
Some of the parameters have to change from run to run, others are always
the same.

distutils command line processing allows to specify parameters in a
configuration file (actually even two files: a site-wide file, plus a
local file in the current directory), which can then extended or
overridden on the command line.

Since this stuff was written by the same Greg Ward who also gave us
optparse:  is there a similar mechanism in optparse?
Or does someone have a module which extends optparse do do this?

I'm *not* asking for an enhancement to the current or a future optparse
or optik version, this stuff should work with the optparse that's
included with Python 2.4 or better even Python 2.3.

Thomas



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