Dependencies

• MySQL, SQLite, or Postgres (depending on your configuration)
• Memcached / libmemcached

Python 2.7.x/3.x Dependencies

• tornado
• pbkdf2
• PyMySQL or pypostgresql
• mysqlclient
• sqlalchemy
• python-binary-memcached
• python-dateutil
• defusedxml
• netaddr
• nose
• future
• sqlalchemy
• python-resize-image
• alembic
• enum34
• rocketchat_API

You can use setup/python-depends.sh or setup/python3-depends.sh to install these if you have pip on your system