title: TypeError: 'NoneType' object is not callable CircleCI
body: <p>I'm trying to make this bit of code in my config.yml file work through CircleCI:</p>
  
  <pre><code>cd backend
  pip install pipenv
  pipenv install
  </code></pre>
  
  <p>When uploading to circleci, I get the following for this section, everything else passes:</p>
  
  <pre><code>Requirement already satisfied: pipenv in /usr/local/lib/python3.7/site-packages (2020.5.28)
  
  Requirement already satisfied: virtualenv in /usr/local/lib/python3.7/site-packages (from pipenv) (20.0.21)
  
  Requirement already satisfied: pip&gt;=18.0 in /usr/local/lib/python3.7/site-packages (from pipenv) (20.1.1)
  
  Requirement already satisfied: setuptools&gt;=36.2.1 in /usr/local/lib/python3.7/site-packages (from pipenv) (46.4.0)
  
  Requirement already satisfied: virtualenv-clone&gt;=0.2.5 in /usr/local/lib/python3.7/site-packages (from pipenv) (0.5.4)
  
  Requirement already satisfied: certifi in /usr/local/lib/python3.7/site-packages (from pipenv) (2020.4.5.1)
  
  Requirement already satisfied: distlib&lt;1,&gt;=0.3.0 in /usr/local/lib/python3.7/site-packages (from virtualenv-&gt;pipenv) (0.3.0)
  
  Requirement already satisfied: importlib-metadata&lt;2,&gt;=0.12; python_version &lt; "3.8" in /usr/local/lib/python3.7/site-packages (from virtualenv-&gt;pipenv) (1.1.3)
  
  Requirement already satisfied: appdirs&lt;2,&gt;=1.4.3 in /usr/local/lib/python3.7/site-packages (from virtualenv-&gt;pipenv) (1.4.4)
  
  Requirement already satisfied: filelock&lt;4,&gt;=3.0.0 in /usr/local/lib/python3.7/site-packages (from virtualenv-&gt;pipenv) (3.0.12)
  
  Requirement already satisfied: six&lt;2,&gt;=1.9.0 in /usr/local/lib/python3.7/site-packages (from virtualenv-&gt;pipenv) (1.15.0)
  
  Requirement already satisfied: zipp&gt;=0.5 in /usr/local/lib/python3.7/site-packages (from importlib-metadata&lt;2,&gt;=0.12; python_version &lt; "3.8"-&gt;virtualenv-&gt;pipenv) (3.1.0)
  
  Creating a virtualenv for this project…
  
  Pipfile: /home/circleci/cyber-dive/Cyber-Dive-App/backend/Pipfile
  
  Using /usr/local/bin/python3 (3.7.7) to create virtualenv…
  
  created virtual environment CPython3.7.7.final.0-64 in 506ms
  
      creator CPython3Posix(dest=/home/circleci/cyber-dive/Cyber-Dive-App/backend/.venv, clear=False, global=False)
  
    seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=/home/circleci/.local/share/virtualenv/seed-app-data/v1.0.1)
  
    activators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
  
  
  
  Virtualenv location: /home/circleci/cyber-dive/Cyber-Dive-App/backend/.venv
  
  Installing dependencies from Pipfile.lock (9ef944)…
  
  Traceback (most recent call last):
  
      File "/usr/local/bin/pipenv", line 8, in &lt;module&gt;
  
      sys.exit(cli())
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 764, in __call__
  
      return self.main(*args, **kwargs)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 717, in main
  
      rv = self.invoke(ctx)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 1137, in invoke
  
      return _process_result(sub_ctx.command.invoke(sub_ctx))
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 956, in invoke
  
      return ctx.invoke(self.callback, **ctx.params)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
  
      return callback(*args, **kwargs)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/decorators.py", line 64, in new_func
  
      return ctx.invoke(f, obj, *args, **kwargs)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
  
      return callback(*args, **kwargs)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/decorators.py", line 17, in new_func
  
      return f(get_current_context(), *args, **kwargs)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/cli/command.py", line 254, in install
  
      editable_packages=state.installstate.editables,
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/core.py", line 1874, in do_install
  
      keep_outdated=keep_outdated
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/core.py", line 1253, in do_init
  
      pypi_mirror=pypi_mirror,
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/core.py", line 809, in do_install_dependencies
  
      deps_list = list(lockfile.get_requirements(dev=dev, only=requirements))
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/lockfile.py", line 272, in get_requirements
  
      yield Requirement.from_pipfile(k, v)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/requirements.py", line 1183, in from_pipfile
  
      r = VCSRequirement.from_pipfile(name, pipfile)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/requirements.py", line 897, in from_pipfile
  
      return cls(**creation_args)
  
    File "&lt;attrs generated init 3bab60f45f8eb7fe6e20ab91412def0e78d5dff6&gt;", line 31, in __init__
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/requirements.py", line 706, in get_link
  
      extras=self.extras,
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/utils.py", line 100, in build_vcs_link
  
      return create_link(uri)
  
    File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/requirementslib/models/utils.py", line 40, in create_link
  
      return Link(link)
  
  TypeError: 'NoneType' object is not callable
  
  
  Exited with code exit status 1 
  
  CircleCI received exit code 1 
  `
  
  When trying to run these tasks locally, here is what I get in my terminal after pipenv install:
  ValueError: Path not found or generated: WindowsPath('c:/program files/git/mingw64/bin')
  </code></pre>
  
  <p>I have been googling my brains out with this and I've got nothing. The path it specifies in the ValueError does exist on my computer and I currently have Python 3.8.2. I also have 3.7.7 installed as listed in my programs. Please help because I am stumped.</p>