alt-python-pydbc-core 1.1.0

Core abstraction hierarchy for pydbc — Driver, DriverManager, Connection, Statement, PreparedStatement, ResultSet, DataSource

alt-python-pydbc-core

Core abstraction layer for pydbc — the uniform database access library for Python.

This package provides the ABCs, registries, and generic helpers that all pydbc driver packages depend on. You do not normally install this package directly. Install the driver package for your database; alt-python-pydbc-core is pulled in automatically as a dependency.

# Install the driver for your database — core is a transitive dependency
uv add alt-python-pydbc-sqlite    # SQLite
uv add alt-python-pydbc-pg        # PostgreSQL
uv add alt-python-pydbc-mysql     # MySQL / MariaDB
uv add alt-python-pydbc-mssql     # SQL Server

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What this package provides

ABCs (Abstract Base Classes)

Class	Purpose
Driver	Abstract base for all pydbc drivers
Connection	Abstract connection handle
Statement	Execute arbitrary SQL
PreparedStatement	Execute pre-compiled SQL with bound parameters
ResultSet	Row access after a query
DataSource	Connection factory abstraction
ConnectionPool	Connection pool abstraction

DriverManager

Central registry that maps connection URLs to registered drivers. Driver packages self-register at import time by calling DriverManager.register_driver().

import pydbc_sqlite  # registers SQLiteDriver
from pydbc_core import DriverManager

conn = DriverManager.get_connection("pydbc:sqlite::memory:")
stmt = conn.create_statement()
rs = stmt.execute_query("SELECT 42 AS n")
print(rs.rows)   # [(42,)]
conn.close()

GenericDbApiDriver

A reusable base driver that wraps any DB-API 2.0 module. Driver packages typically subclass this; it handles connection lifecycle, cursor management, and paramstyle normalisation automatically.

DataSource helpers

Class	When to use
SingleConnectionDataSource	Tests and scripts that need one persistent connection
PooledDataSource	Servers and applications that need a connection pool
NamedParameterDataSource	Convenience wrapper with named-parameter query/update methods

ParamstyleNormalizer

Rewrites SQL written with ? (positional) or :name (named) placeholders to whatever the underlying DB-API 2.0 driver expects (%s, %(name)s, :1, etc.). This means you write SQL once and it works against any driver.

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Documentation

• Getting started tutorial
• Core API reference

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License

MIT