[mcj]subprocess.CalledProcessError: Command ‘(‘lsb_release’, ‘-a’)’ returned non-zero exit status 1

安装Python3之后，出现这个错误：

Exception:
Traceback (most recent call last):
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 143, in main
    status = self.run(options, args)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 259, in run
    with self._build_session(options) as session:
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 79, in _build_session
    insecure_hosts=options.trusted_hosts,
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/download.py", line 337, in __init__
    self.headers["User-Agent"] = user_agent()
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/download.py", line 100, in user_agent
    zip(["name", "version", "id"], distro.linux_distribution()),
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 120, in linux_distribution
    return _distro.linux_distribution(full_distribution_name)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 675, in linux_distribution
    self.version(),
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 735, in version
    self.lsb_release_attr('release'),
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 892, in lsb_release_attr
    return self._lsb_release_info.get(attribute, '')
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 550, in __get__
    ret = obj.__dict__[self._fname] = self._f(obj)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 998, in _lsb_release_info
    stdout = subprocess.check_output(cmd, stderr=devnull)
  File "/usr/local/python3/lib/python3.6/subprocess.py", line 356, in check_output
    **kwargs).stdout
  File "/usr/local/python3/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1.
Traceback (most recent call last):
  File "/usr/bin/pip3", line 11, in <module>
    sys.exit(main())
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/__init__.py", line 78, in main
    return command.main(cmd_args)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 184, in main
    timeout=min(5, options.timeout)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 79, in _build_session
    insecure_hosts=options.trusted_hosts,
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/download.py", line 337, in __init__
    self.headers["User-Agent"] = user_agent()
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_internal/download.py", line 100, in user_agent
    zip(["name", "version", "id"], distro.linux_distribution()),
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 120, in linux_distribution
    return _distro.linux_distribution(full_distribution_name)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 675, in linux_distribution
    self.version(),
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 735, in version
    self.lsb_release_attr('release'),
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 892, in lsb_release_attr
    return self._lsb_release_info.get(attribute, '')
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 550, in __get__
    ret = obj.__dict__[self._fname] = self._f(obj)
  File "/usr/local/python3/lib/python3.6/site-packages/pip/_vendor/distro.py", line 998, in _lsb_release_info
    stdout = subprocess.check_output(cmd, stderr=devnull)
  File "/usr/local/python3/lib/python3.6/subprocess.py", line 356, in check_output
    **kwargs).stdout
  File "/usr/local/python3/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1.

解决方法：

sudo mv /usr/bin/lsb_release /usr/bin/lsb_release_back