Python FastAPI Tutorial (Part 15): PostgreSQL and Alembic - Database Migrations for Production

Web Reference: 96 What does the “at” (@) symbol do in Python? @ symbol is a syntactic sugar python provides to utilize decorator, to paraphrase the question, It's exactly about what does decorator do in Python? Put it simple decorator allow you to modify a given function's definition without touch its innermost (it's closure). In Python this is simply =. To translate this pseudocode into Python you would need to know the data structures being referenced, and a bit more of the algorithm implementation. Some notes about psuedocode: := is the assignment operator or = in Python = is the equality operator or == in Python There are certain styles, and your mileage may vary: Sep 13, 2023 · There is no bitwise negation in Python (just the bitwise inverse operator ~ - but that is not equivalent to not). See also 6.6. Unary arithmetic and bitwise/binary operations and 6.7. Binary arithmetic operations. The logical operators (like in many other languages) have the advantage that these are short-circuited. That means if the first operand already defines the result, then the second ...

YouTube Excerpt: In this video, we'll be making our database setup production-ready by moving from SQLite to PostgreSQL and introducing Alembic for database migrations. We'll cover how to install and configure PostgreSQL locally, how to replace SQLite and create_all with a proper migration workflow, how to set up Alembic for managing schema changes, and how to generate and apply migrations so that we never have to delete and recreate our database again. By the end of this video, you'll have a solid workflow for updating your database structure as your application evolves. Let's get started... The code from this video can be found here: https://github.com/CoreyMSchafer/FastAPI-15-Postgres-Alembic Full FastAPI Course: https://www.youtube.com/playlist?list=PL-osiE80TeTsak-c-QsVeg0YYG_0TeyXI PostgreSQL Installation - https://www.postgresql.org/download/ ✅ Support My Channel Through Patreon: https://www.patreon.com/coreyms ✅ Become a Channel Member: https://www.youtube.com/channel/UCCezIgC97PvUuR4_gbFUs5g/join ✅ One-Time Contribution Through PayPal: https://goo.gl/649HFY ✅ Cryptocurrency Donations: Bitcoin Wallet - 3MPH8oY2EAgbLVy7RBMinwcBntggi7qeG3 Ethereum Wallet - 0x151649418616068fB46C3598083817101d3bCD33 Litecoin Wallet - MPvEBY5fxGkmPQgocfJbxP6EmTo5UUXMot ✅ Corey's Public Amazon Wishlist http://a.co/inIyro1 ✅ Equipment I Use and Books I Recommend: https://www.amazon.com/shop/coreyschafer ▶️ You Can Find Me On: My Website - http://coreyms.com/ My Second Channel - https://www.youtube.com/c/coreymschafer Facebook - https://www.facebook.com/CoreyMSchafer Twitter - https://twitter.com/CoreyMSchafer Instagram - https://www.instagram.com/coreymschafer/ #Python #FastAPI

In this video, we'll be making our database setup production-ready by moving from SQLite to PostgreSQL and introducing Alembic for database...

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