Traceback (most recent call last):
  File "/build/pychess/src/pychess/setup.py", line 14, in <module>
    from pychess.Savers.pgn import PGNFile
  File "/build/pychess/src/pychess/lib/pychess/Savers/pgn.py", line 14, in <module>
    from sqlalchemy import String
ModuleNotFoundError: No module named 'sqlalchemy'
==> ERROR: A failure occurred in package().
    Aborting...