在重啓airflow1.10(python2版本)中出現日下問題：
# airflow -h
No handlers could be found for logger "airflow.logging_config"
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 21, in <module>
from airflow import configuration
File "/usr/local/lib/python2.7/dist-packages/airflow/__init__.py", line 36, in <module>
from airflow import settings
File "/usr/local/lib/python2.7/dist-packages/airflow/settings.py", line 259, in <module>
configure_logging()
File "/usr/local/lib/python2.7/dist-packages/airflow/logging_config.py", line 72, in configure_logging
raise e
ValueError: Unable to configure handler 'task': Cannot resolve 'airflow.utils.log.file_task_handler.FileTaskHandler': No module named ordered_dict
原因主要是 ordereddict這個包的版本導致的；
urllib3>1.22版本取消了ordered_dict，重裝回即可
pip install urllib3==1.22
參考文章：https://stackoverflow.com/questions/53767027/virt-manager-importerror-no-module-named-ordered-dict
http://www.chenxm.cc/article/875.html