How to install dependencies from a copied pipfile inside a virtual environment?
PythonPipVirtualenvPipenvPython Problem Overview
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 pipenv shell. 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 pipenv install <package_name>. 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 pipenv shell?
Python Solutions
Solution 1 - Python
The proper answer to this question is that pipenv install or pipenv install --dev (if there are dev dependencies) should be ran. That will install all the dependencies in the Pipefile. Putting the dependencies into a requirements.txt and then using pip will work but is not really necessary. The whole point of using pipenv for most people is to avoid the need to manage a requirements.txt or to use pip.
EDIT: if the virtualenv is already activated, you can also use pipenv sync or pipenv sync --dev for the same effect.
Solution 2 - Python
Ideally, you are encouraged to have a requirements.txt file which contains all the packages required for installation via pip. You can create this file by doing:
pip freeze > requirements.txt
You can convert a Pipfile and Pipfile.lock into a requirements.txt. Take a look into this
pipenv lock -r
After that, you can install all your modules in your python virtual environment by doing the following:
pip install -r requirements.txt
Hopefully, I anwered your question.
Solution 3 - Python
I had a similar issue. For me, I exited the virtualenv and ran
pipenv --three sync
and it worked.
From what I can understand the idea is to create a new virtual environment using python 3 in my case. If you're using python 2 the above command would be edited to read
pipenv --two
The sync command copies all dependencies from the Pipfile.lock over to the new virtualenv.
Solution 4 - Python
use pipenv sync to install all packages specified in Pipfile.lock.
Solution 5 - Python
use pipenv sync in file Pipfiel
this code refrsh lib in file type .lock
pipenv sync
use this run virtualenv Pipfile
pipenv shell