|OS||All Supported OS|
While migrating to HDB 220.127.116.11, you need plpython to be enabled. According to the HDB documentation, you should have a $GPHOME/ext directory where the python binaries for HDB reside. However, on your HDB 18.104.22.168 install, you do not have the $GPHOME/ext directory.
When you use the midnight command tool to look into the HDB 22.214.171.124 RPM file, the ext directory is also not there. Also, when the same is done on a HDB 126.96.36.199 RPM, the ext directory is present in the RPM.
HDB uses the default python interpreter and no longer uses $GPHOME/ext/python at all so you can now install your packages on top of the default python interpreter. Your default python interpreter is already in the PATH.
Also, gppkg will not be needed to install plpython anymore. It's embedded in the database. You will just need to create the language.