有可能是改了控制台输出编码格式导致，系统重装之后就没问题了

@hijk 不是，是centos7

WARNING: Running pip install with root privileges is generally not a good idea. Try pip3 install --user instead.
Exception:
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/lib/python3.6/site-packages/pip/commands/install.py", line 294, in run
with self._build_session(options) as session:
File "/usr/lib/python3.6/site-packages/pip/basecommand.py", line 72, in _build_session
insecure_hosts=options.trusted_hosts,
File "/usr/lib/python3.6/site-packages/pip/download.py", line 329, in init
self.headers["User-Agent"] = user_agent()
File "/usr/lib/python3.6/site-packages/pip/download.py", line 93, in user_agent
from pip._vendor import distro
File "/usr/lib/python3.6/site-packages/pip/_vendor/distro.py", line 1050, in <module>
_distro = LinuxDistribution()
File "/usr/lib/python3.6/site-packages/pip/_vendor/distro.py", line 594, in init
if include_lsb else {}
File "/usr/lib/python3.6/site-packages/pip/_vendor/distro.py", line 922, in _get_lsb_release_info
stdout, stderr = stdout.decode('utf-8'), stderr.decode('utf-8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd5 in position 24: invalid continuation byte
Traceback (most recent call last):
File "/usr/bin/pip3", line 16, in <module>
sys.exit(main())
File "/usr/lib/python3.6/site-packages/pip/init.py", line 247, in main
return command.main(cmd_args)
File "/usr/lib/python3.6/site-packages/pip/basecommand.py", line 251, in main
timeout=min(5, options.timeout)) as session:
File "/usr/lib/python3.6/site-packages/pip/basecommand.py", line 72, in _build_session
insecure_hosts=options.trusted_hosts,
File "/usr/lib/python3.6/site-packages/pip/download.py", line 329, in init
self.headers["User-Agent"] = user_agent()
File "/usr/lib/python3.6/site-packages/pip/download.py", line 93, in user_agent
from pip._vendor import distro
File "/usr/lib/python3.6/site-packages/pip/_vendor/distro.py", line 1050, in <module>
_distro = LinuxDistribution()
File "/usr/lib/python3.6/site-packages/pip/_vendor/distro.py", line 594, in init
if include_lsb else {}
File "/usr/lib/python3.6/site-packages/pip/_vendor/distro.py", line 922, in _get_lsb_release_info
stdout, stderr = stdout.decode('utf-8'), stderr.decode('utf-8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd5 in position 24: invalid continuation byte
which: no certbot in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin)
/dev/fd/63:0: certbot: δ

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