Application Error

Error: invalid syntax (base_events.py, line 296)

詳細なエラー情報:

Traceback (most recent call last):
  File "/home/c1146336/public_html/otapa.jp/wsgi.py", line 40, in 
    app = create_app()
  File "/home/c1146336/public_html/otapa.jp/web/__init__.py", line 23, in create_app
    from . import routes
  File "/home/c1146336/public_html/otapa.jp/web/routes.py", line 9, in 
    from price_calculator.db_integration import DatabasePriceCalculator
  File "/home/c1146336/public_html/otapa.jp/price_calculator/db_integration.py", line 11, in 
    from database.connection import get_sync_db_connection, close_sync_connection
  File "/home/c1146336/public_html/otapa.jp/database/__init__.py", line 5, in 
    from .connection import (
  File "/home/c1146336/public_html/otapa.jp/database/connection.py", line 10, in 
    import aiomysql
  File "/home/c1146336/public_html/otapa.jp/venv/lib/python3.9/site-packages/aiomysql/__init__.py", line 32, in 
    from .connection import Connection, connect
  File "/home/c1146336/public_html/otapa.jp/venv/lib/python3.9/site-packages/aiomysql/connection.py", line 4, in 
    import asyncio
  File "/home/c1146336/public_html/otapa.jp/venv/lib/python3.9/site-packages/asyncio/__init__.py", line 21, in 
    from .base_events import *
  File "/home/c1146336/public_html/otapa.jp/venv/lib/python3.9/site-packages/asyncio/base_events.py", line 296
    future = tasks.async(future, loop=self)
                   ^
SyntaxError: invalid syntax