Multi tool use

Can't get heroku procfile

I'm trying to build up a deep-learning-based facebook chatbot (using Python). I'm trying to deploy it on Heroku firstly, but as I'm using the command web: gunicorn echoserver:app the terminal says web: command not found. Howevere, I've installed gunicorn already.

web: gunicorn echoserver:app

web: command not found

gunicorn

2 Answers
2

This is because you are typing web:, which is not a command line interface (CLI) command.

web:

If you've installed gunicorn, then the command (from the CLI) is gunicorn. Something like, for instance

gunicorn

gunicorn

gunicorn echoserver:app


I suppose it's also possible that you have a Windows machine. gunicorn does not work on Windows, so you would need to use something like waitress. With waitress, you would type web: on a Windows machine, so that it would be something like

gunicorn

waitress

waitress

web:

web: waitress-serve echoserver:app


Note that the procfile is literally a file you place in your repository. The contents of the procfile should contain the command you want Heroku to run to start your server.

So in the root directory of your repo, you should have a Procfile (named exactly that with no file extension) with the following contents:

Procfile

web: gunicorn echoserver:app


The first part (web:) is just used to tell Heroku which dyno to run the second part (the command) on. So Heroku will only run the command on web dynos and not on background dynos.

web:

web

More info here: https://devcenter.heroku.com/articles/procfile

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