On Thu, 6 Jan 2005, Fred Lionetti wrote:
> I'm working on creating an installer for my program using install
> shield, and I'd like to know how one can automatically determine if
> Python 2.3 is installed on a linux machine, and where site-packages is
> located (so that I can install my own files there). For my Windows
> version I was able to search for the python2.3 entry in the windows
> registry, but I don't know how do the equivalent from linux. Any ideas?
Hi Fred,
Yes, there are some undocumented functions in the Distutils package that
you can use to find where 'site-packages' lives.
Let me check... ah, ok, the function that you're probably looking for is
distutils.sysconfig.get_python_lib(). For example:
###
>>> distutils.sysconfig.get_python_lib()
'/usr/lib/python2.3/site-packages'
###
def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
"""Return the directory containing the Python library (standard or
site additions).
If 'plat_specific' is true, return the directory containing
platform-specific modules, i.e. any module from a non-pure-Python
module distribution; otherwise, return the platform-shared library
directory. If 'standard_lib' is true, return the directory
containing standard Python library modules; otherwise, return the
directory for site-specific modules.
If 'prefix' is supplied, use it instead of sys.prefix or
sys.exec_prefix -- i.e., ignore 'plat_specific'.
"""
So you can use Python itself to introspect where the libraries should
live. I hope this helps!
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