Update sqla.py (#3110)
Update sqla.py (#3110)

Fixing a typo: SQLAlchemy was misspelt in one of the very first lines.
riga/luigi,riga/luigi,dlstadther/luigi,spotify/luigi,spotify/luigi,spotify/luigi,spotify/luigi,riga/luigi,dlstadther/luigi,dlstadther/luigi,riga/luigi,dlstadther/luigi