title: pipenv requires python 3.7 but installed version is 3.8 and won't install
body: <p>I know a little of Python and more than a year ago I wrote a small script, using <code>pipenv</code> to manage the dependencies.</p>
  <p>The old platform was Windows 7, the current platform is Windows 10.</p>
  <p>At that time I probably had Python 3.7 installed, now I have 3.8.3 but running:</p>
  <pre><code>pipenv install
  </code></pre>
  <p>Complained that:</p>
  <pre><code>Warning: Python 3.7 was not found on your system…
  Neither 'pyenv' nor 'asdf' could be found to install Python.
  You can specify specific versions of Python with:
  $ pipenv --python path\to\python
  </code></pre>
  <p>This is the Pipfile</p>
  <pre><code>[[source]]
  url = &quot;https://pypi.org/simple&quot;
  verify_ssl = true
  name = &quot;pypi&quot;
  
  [packages]
  python-ldap = {path = &quot;./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl&quot;}
  requests = &quot;~=2.0&quot;
  mysqlclient = &quot;~=1.0&quot;
  
  [dev-packages]
  
  [requires]
  python_version = &quot;3.7&quot;
  </code></pre>
  <p>I manually edited that last line to allow 3.8, but how do I properly fix that?<br />
  I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.</p>