pipenv install 环境问题TypeError: 'module' object is not callable

问题原因：pip版本不合适

packages/pipenv/utils.py", line 402, in resolve_deps
    req_dir=req_dir
  File "/usr/local/python3.7.0/lib/python3.7/site-packages/pipenv/utils.py", line 250, in actually_resolve_deps
    req = Requirement.from_line(dep)
  File "/usr/local/python3.7.0/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/requirements.py", line 704, in from_line
    line, extras = _strip_extras(line)
TypeError: 'module' object is not callable

解决办法：pip install --upgrade pip==18.0