title: How to install dependencies from a copied pipfile inside a virtual environment?
body: <p>The problem originates when I start by cloning a git project that uses pipenv, so it has a Pipfile + Pipfile.lock. I want to use a virtual environment with the project so I run <code>pipenv shell</code>. I now have a virtual environment created and I am inside the virtual environment. The project obviously has a lot of dependencies (listed in the Pipfile). I don't want to have to go through the list in the Pipfile one by one and install them using <code>pipenv install &lt;package_name&gt;</code>. Is there a pipenv/pip command that installs all the packages from a Pipfile I already have? Or maybe I need to set up the environment differently than running <code>pipenv shell</code>?</p>