They don't utterly destroy performance, but there is some hit if you use UUID v4 random values due to database index scattering. That's why this new proposal exists. It adds new versions of UUID that are mostly…
It is a hash, but in the format of a UUID. This is useful if you are storing it in the database, since there is usually a dedicated data type for UUIDs. Also, you can mix UUID v4 and v5 IDs freely.
Extensions can register themselves with the Flask application object, so you can look there: current_app.extensions['whatever']. However, it is not specified what exactly this dictionary contains, so eg. SQLAlchemy puts…
The "documented information" you want is mentioned in the article. Guido links to a blog post by Jeremy Siek and a paper by Vitousek, Siek and Baker. Read the blog post, section "Why subtyping does not work".…
Points 1 and 2 are only valid because the Celery database backend implementation uses generic SQLAlchemy. Chances are, if you are using a relational database, it's PostgreSQL. And it does have an asynchronous…
You are right that it does not look like what is usually called "tail call", ie. call to 'fact' is not the last evaluated expression. However, this doesn't mean that the compiler can't optimize it, provided that the…
They don't utterly destroy performance, but there is some hit if you use UUID v4 random values due to database index scattering. That's why this new proposal exists. It adds new versions of UUID that are mostly…
It is a hash, but in the format of a UUID. This is useful if you are storing it in the database, since there is usually a dedicated data type for UUIDs. Also, you can mix UUID v4 and v5 IDs freely.
Extensions can register themselves with the Flask application object, so you can look there: current_app.extensions['whatever']. However, it is not specified what exactly this dictionary contains, so eg. SQLAlchemy puts…
The "documented information" you want is mentioned in the article. Guido links to a blog post by Jeremy Siek and a paper by Vitousek, Siek and Baker. Read the blog post, section "Why subtyping does not work".…
Points 1 and 2 are only valid because the Celery database backend implementation uses generic SQLAlchemy. Chances are, if you are using a relational database, it's PostgreSQL. And it does have an asynchronous…
You are right that it does not look like what is usually called "tail call", ie. call to 'fact' is not the last evaluated expression. However, this doesn't mean that the compiler can't optimize it, provided that the…