fixes linting errors

punchpipe/controlsegment/db.py

@@ -1,11 +1,7 @@
 import os
-from typing import Optional
 
-from prefect.blocks.core import Block
-from pydantic import SecretStr
 from sqlalchemy import TEXT, Column, DateTime, Integer, String
 from sqlalchemy.orm import declarative_base
-from prefect_sqlalchemy.credentials import DatabaseCredentials
 
 Base = declarative_base()
 

punchpipe/controlsegment/util.py

@@ -3,7 +3,6 @@
 import yaml
 from prefect import task
 from punchbowl.data import PUNCHData
-from sqlalchemy import create_engine
 from sqlalchemy.orm import Session
 from yaml.loader import FullLoader
 from prefect_sqlalchemy.credentials import DatabaseCredentials

punchpipe/monitor/monitor.py

@@ -7,12 +7,12 @@
 import pandas as pd
 import plotly.express as px
 from punchbowl.data import PUNCHData
-from sqlalchemy import and_, create_engine, or_
+from sqlalchemy import and_, or_
 from sqlalchemy.orm import Session
 from sqlalchemy.orm.exc import MultipleResultsFound, NoResultFound
 from prefect_sqlalchemy.credentials import DatabaseCredentials
 
-from punchpipe.controlsegment.db import File, FileRelationship, Flow, MySQLCredentials
+from punchpipe.controlsegment.db import File, FileRelationship, Flow
 
 
 def _create_overall_blocks(start_date, end_date):