[Setup] Will unified installer use already provided software

[Steve McMahon]

Since the Unified Installer installs its own version of Plone, which 
does not interact with the system Plone, it needs all its own site 
packages. Thus, it installs its own copies of elementtree, PIL, and a 
few other items. These also do not interact with your system python.

browni wrote:
> Is the Plone unified installer, when rectifying software requirements, aware
> of system-provided software, or does it assume that the installer- provided
> software will be used regardless?  As an example, if the system already had
> ElementTree installed (rhel5, python elementtree 1.2.6-5.i386), would the
> Plone installer use its ElementTree rather than that already present?
> 
> Also, how can I find out what versions of a pre-req (ElementTree or other)
> Plone3.0 has been tested with?
> 
> Thanks for any assistance.
> 
> Sincerely,
> Glen Browning

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Steve McMahon
Reid-McMahon, LLC
steve at reidmcmahon.com
steve at dcn.org