Apps :: Python trouble

Anyone have any ideas on what might be wrong with my Python installation? I have a hard-drive installation of DSL. Python is installed in opt/python/bin. The interpreter can be called from anywhere, and permissions are set to allow all users execute. However, trying to execute my modest script (which has also had chmod 755) returns this error:

bash: ./test1/py: /opt/python/bin: bad interpreter: Permission denied

So I checked my fstab, which shows that all my partitions, including my active DSL partition, have "users" and "exec" permission set. So I wonder what could be wrong. I'm still learning to use Linux so any pointers would be appreciated.

Thanks

original here.