ansible运行报错CryptographyDeprecationWarning解决

/usr/lib64/python2.7/site-packages/cryptography/__init__.py:39: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in a future release.
  CryptographyDeprecationWarning

[root@ansible ~]# yum -y install https://releases.ansible.com/ansible/rpm/release/epel-7-x86_64/ansible-2.9.9-1.el7.ans.noarch.rpm 

[root@ansible ~]# ansible --version
/usr/lib64/python2.7/site-packages/cryptography/__init__.py:39: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in a future release.
  CryptographyDeprecationWarning,
ansible 2.9.10
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Apr  2 2020, 13:16:51) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]

[root@ansible ~]# yum remove ansible

[root@ansible ~]# pip3 install xlrd -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
[root@ansible ~]# mkdir ~/.pip
[root@ansible ~]# touch ~/.pip/pip.conf
[root@ansible .pip]# more pip.conf 
[global]
index-url = http://pypi.douban.com/simple
[install]
trusted-host = pypi.douban.com
[root@ansible .pip]# pip3 install ansible==2.9.9