CassIO reference

This part of the site provides documentation for the CassIO library itself.

Check the individual pages for detailed docs on the available classes and modules. Below are a few general tips to keep in mind.

Global init

You can invoke cassio.init(...), in various ways, to set up a globally-available connection to the database, in the form of a Session and a keyspace. Later instantiations of CassIO objects which do not specify a database session will default to this global setting.

Data format

"Rows" of data entering and exit the CassIO abstractions are in the form of regular Python dictionaries. In other words, you will not have to worry about the Row named-tuple data format that is customary at the Cassandra driver level.

Table creation behind the scenes

When CassIO table abstractions are instantiated, normally a CREATE TABLE IF NOT EXISTS statement is run. In particular, if a table was created earlier with that name but different properties, that may silently induce schema compatibility issues later on.