Upgrading to fastapi .95.1

app/db_sql.py

@@ -24,6 +24,7 @@ engine = create_engine(url=connection_string, poolclass=NullPool, echo=False, is
 # levels: "REPEATABLE READ" "READ COMMITTED" "READ UNCOMMITTED" "SERIALIZABLE"
 
 log.info('DB SQL trying to connect...')
+db = None
 try:
     db = engine.connect()
     log.info(f'Connected to database: {db_uri}')
@@ -932,6 +933,10 @@ def run_sql_select(
     log.debug(dir(sql))
     log.debug('*** ** * ** ***')
 
+    if not db:
+        log.exception('The database connection is not available!!! Returning False.')
+        return False
+
     try:
         # https://docs.sqlalchemy.org/en/13/core/tutorial.html#using-textual-sql
         # https://docs.sqlalchemy.org/en/13/core/sqlelement.html#sqlalchemy.sql.expression.TextClause.columns