guotongfei commented on pull request #18755:
URL: https://github.com/apache/airflow/pull/18755#issuecomment-941265102
@uranusjr Looks like Literal is not available:
ImportError while importing test module
'/opt/airflow/tests/providers/amazon/aws/transfers/test_mysql_to_s3.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/local/lib/python3.6/importlib/__init__.py:126: in import_module
return _bootstrap._gcd_import(name[level:], package, level)
tests/providers/amazon/aws/transfers/test_mysql_to_s3.py:25: in <module>
from airflow.providers.amazon.aws.transfers.mysql_to_s3 import
MySQLToS3Operator
airflow/providers/amazon/aws/transfers/mysql_to_s3.py:24: in <module>
from typing import Literal, Optional, Union
E ImportError: cannot import name 'Literal'
Any suggestions?
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