How to add python dependencies to heroku node server?

Question

I have a Heroku app that\'s running Node, but I need to be able to run Python scripts on this server. I\'m trying to install my Python dependencies but can\'t get it to work.

Answer 1

You probably need to use multiple buildpacks. See:

• Using Multiple Buildpacks for an App

In the Heroku Dev Center.

Answer 2

I've solved it so:

1. I created (If there is not) the file "requirements.txt" directly into the root of the entrypoint (index.js, in my case)

2. I manually added the libraries with the specific versions into the file, in my case like this:

   requests==2.7.0
   beautifulsoup4==4.5.3
   

3. I created (If there is not) the file "runtime.txt" with with just one line: the python version i need, in my case:

   python-2.7.14
   

4. I created the multibuildpacks with the two commands:

   heroku buildpacks:set heroku/python
   heroku buildpacks:add --index 1 heroku/nodejs
   

5. Finally, I continued with the git commands:

   git add requirements.txt runtime.txt
   git commit requirements.txt runtime.txt -m "requirements"
   git push heroku master