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Editorial Team
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Asked: 2026-06-01T20:36:00+00:00

I am using Django in Heroku, and in my site I send batch emails

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I am using Django in Heroku, and in my site I send batch emails every month through Celery. Since I only use this worker once a month, I don’t want to pay for it all the time. I can stop the worker using a heroku scale workers=0 and scale it back up with heroku scale workers=1 manually before and after I send my emails.

However since other non-techinical staff will sending email from django as well, they can not run these commands. Can I stop a worker by executing a command from Python in my Heroku web process? I could execute any commands before sending email.

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1 Answer

  1. Editorial Team

    There is a bug with heroku.py see issues: https://github.com/heroku/heroku.py/issues/10 and https://github.com/heroku/heroku.py/issues/4

    I made a quick work around, which uses the http resource directly:

    cloud = heroku.from_key(settings.HEROKU_APIKEY)    
cloud._http_resource(method='POST', 
   resource=('apps', 'appnane', 'ps', 'scale'), 
   data={'type': 'processname', 'qty': 1})

cloud._http_resource(method='POST', resource=('apps', 'appname', 'ps', 'scale'), data={'type': 'processname', 'qty': 0})
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