![]() ![]() To switch buildpacks, first clear the existing buildpacks set on the app using: $ heroku buildpacks:clear ![]() heroku/python is the curated stable buildpack registry release. If you see a GitHub URL like in the example or one that’s pinned to a custom branch or tag, then it’s recommended to switch to the heroku/python buildpack. To check which buildpacks are configured on your app, use the heroku buildpacks CLI command: $ heroku buildpacks The stable heroku/python buildpack release is also pre-installed in the build environment, so using it improves build performance compared to GitHub URLs.įor more information see Buildpack References. Otherwise, some documented features don’t work, and you don’t benefit from future bug fixes or improvements made to the buildpack. python-3.7.17 (available on the Heroku-20 stack only)įor the best results, it’s recommended that you use the latest stable version of the buildpack, rather than pinning to a tag or branch or using a fork. ![]() python-3.8.18 (available on the Heroku-20 stack only).python-3.9.18 (available on all stacks).python-3.10.13 (available on all stacks).python-3.11.5 (available on all stacks recommended). ![]() You can also specify a different supported Python version. When Heroku recognizes a deployed application as a Python application, you see this build output: $ git push heroku masterīy default, newly created Python apps use the python-3.11.5 runtime. Heroku automatically recognizes your app as a Python app if it includes a requirements.txt, setup.py, or Pipfile file in its root directory. Heroku supports all popular web frameworks for Python including Django, Flask, and so on.įor a deployment tutorial that uses a sample Django app, see Getting Started on Heroku with Python. ![]()
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