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Configuring SQLAlchemy with PostgreSQL on Heroku: A Quick Guide

  • If the DATABASE_URL starts with postgres:// (Heroku's default), it replaces it with the correct format, postgresql+psycopg2://, making the URI compatible with SQLAlchemy.

Instead of manually replacing the URI, you can use libraries like dj-database-url to parse and adapt the DATABASE_URL for different frameworks or drivers. However, the manual approach is straightforward and works well for most cases.

Nov 08, 2024
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