SAMPLE SQLAlchemy connect to existing DB/Tables

db.py

from sqlalchemy.orm import sessionmaker
from sqlalchemy import create_engine, MetaData, Table

# Using SQLAlchemy reflection example
engine = create_engine('connectionstringhere')
table1meta = MetaData(engine)
table1 = Table('Table_I_Want_to_Interact', table1meta, autoload=True)
DBSession = sessionmaker(bind=engine)
session = DBSession()
results = session.query(table1).filter(table1.columns.TimeStamp>="2019-02-26 18:00:00.000")
results.all()