At 08:14 AM 9/12/2009 +1000, Ben Finney wrote:
Specifically, I want to programmatically access the metadata that is held in the arguments to the âdistutils.setup()â call. Without, as you say, executing any Distutils command. I am not aware of any âdistutilsâ public functions that can do that, and reading <URL:http://docs.python.org/distutils/> again doesn't enlighten me. Would you be more specific about what these functions are?
http://docs.python.org/distutils/apiref.html#module-distutils.core - specifically the run_setup() function. (It appears the docs do not have link anchors for individual functions, alas.)
distutils.core.run_setup("setup.py", [], "init") will return you an initialized Distribution object from running the setup script, without parsing any configuration files or executing any commands. You could use "config" or "commandline" instead of "init" if you wanted those pieces of processing to be done as well - i.e. if you wanted to be sure any setup.cfg options were processed.
This will work with a sufficiently well-behaved setup.py; setup scripts that try to do build or install steps outside of any distutils command may produce side-effects when run. (Which is why setuptools always runs setup scripts in a loose sandbox that detects when a script tries to modify the filesystem outside the setup directory.)
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