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sqlalchemy-pysqlite3's Introduction

sqlalchemy-pysqlite3

This module registers an SQLAlchemy dialect for sqlite that uses pysqlite3.dbapi2 instead of pysqlite2.dbapi2 or sqlite3.dbapi2. When pysqlite3 is linked to a more recent version of SQLite3 than the system library, this allows you to use the newer version together with SQLAlchemy.

It would also be possible to do by passing a module parameter to create_engine, but that option is not always available.

Installation

pip install sqlalchemy-pysqlite3

Synopsis

from sqlalchemy import create_engine

engine = create_engine('sqlite+pysqlite3:///:memory:', echo=True)

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sqlalchemy-pysqlite3's Issues

SQL compilation caching

I get this warning:

Dialect sqlite:pysqlite will not make use of SQL compilation caching as it does not set the 'supports_statement_cache' attribute to True. This can have significant performance implications including some performance degradations in comparison to prior SQLAlchemy versions. Dialect maintainers should seek to set this attribute to True after appropriate development and testing for SQLAlchemy 1.4 caching support. Alternatively, this attribute may be set to False which will disable this warning. (Background on this error at: https://sqlalche.me/e/14/cprf)

Related: coleifer/pysqlite3#35

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