I installed Greenplum on Centos 7 and now I cannot use yum.I need to install samba-client but when I run:yum install samba-clientI see this error: ImportError: No module named sitewhich python/usr/local/greenplum-db/ext/python/bin/pythonpython -VPython 2.6.2cat $PYTHONHOMEcat: /usr/local/greenplum-db/./ext/python: Is a directoryNo idea how this happened. I notice that my other servers do not have this problem and display python 2.7.5
yum Error: No module named site
centos;yum;python
PYTHONHOMEChange the location of the standard Python libraries. By default, the  libraries are searched in prefix/lib/pythonversion and  exec_prefix/lib/pythonversion, where prefix and exec_prefix are  installation-dependent directories, both defaulting to /usr/local.When PYTHONHOME is set to a single directory, its value replaces both  prefix and exec_prefix. To specify different values for these, set  PYTHONHOME to prefix:exec_prefix.In a shell you can use these commands to clean up those :unset PYTHONPATH## to use the system default ##unset PYTHONHOME   