[Zope] Confusion over INST_HOME and INSTANCE_HOME

[Evan Simpson]

From: "Tony McDonald" <tony.mcdonald@ncl.ac.uk>
> PYTHONHOME=/home/zope/Zope-2.3.3-src
> export PYTHONHOME
> exec /usr/local/bin/python2.1  $PYTHONHOME/z2.py "$@"
>
> Gives an import error
> 243 % ./start
> 'import site' failed; use -v for traceback

The environment variable PYTHONHOME is meaningful to Python 2.0 and
above, and causes this error.  That's why "start" scripts generated
under these versions use "INST_HOME" instead.  The name is an
unfortunate coincidence, and has nothing to do with "INSTANCE_HOME", so
just edit your scripts to use a different name in place of "PYTHONHOME".

Cheers,

Evan @ digicool & 4-am