WebFaction will migrate to tsoHost and tsoHost do not support PostgreSQL - webfaction.com
Alternatives hosting looks like WebFaction - Share Plan with support of PostgreSQL, MySQL, PHP and Django/Python.
- limit memory size
- unlimited websites
- unlimited bandwidth transfer
Order by relevance by my opinion.
python 2 and 3
only python 3
do not have support python / django by share-webhosting