python3.6 install error

Exception:
Traceback (most recent call last):
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/commands/install.py", line 272, in run
    with self._build_session(options) as session:
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/basecommand.py", line 72, in _build_session
    insecure_hosts=options.trusted_hosts,
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/download.py", line 329, in __init__
    self.headers["User-Agent"] = user_agent()
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/download.py", line 93, in user_agent
    from pip._vendor import distro
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load
  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 646, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 616, in _load_backward_compatible
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/_vendor/distro.py", line 1050, in <module>
    _distro = LinuxDistribution()
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/_vendor/distro.py", line 594, in __init__
    if include_lsb else {}
  File "/tmp/tmpazel7x8o/pip-9.0.1-py2.py3-none-any.whl/pip/_vendor/distro.py", line 931, in _get_lsb_release_info
    raise subprocess.CalledProcessError(code, cmd, stdout, stderr)
subprocess.CalledProcessError: Command 'lsb_release -a' returned non-zero exit status 2.