PostgreSQL driver and tools library.
py-postgresql is a set of Python modules providing interfaces to various parts of PostgreSQL. Notably, it provides a pure-Python driver + C optimizations for querying a PostgreSQL database.
- Prepared Statement driven interfaces.
- Cluster tools for creating and controlling a cluster.
- Support for most PostgreSQL types: composites, arrays, numeric, lots more.
- COPY support.
Sample PG-API Code:
>>> import postgresql >>> db = postgresql.open('pq://user:password@host:port/database') >>> db.execute("CREATE TABLE emp (emp_first_name text, emp_last_name text, emp_salary numeric)") >>> make_emp = db.prepare("INSERT INTO emp VALUES ($1, $2, $3)") >>> make_emp("John", "Doe", "75,322") >>> with db.xact(): ... make_emp("Jane", "Doe", "75,322") ... make_emp("Edward", "Johnson", "82,744") ...
There is a DB-API 2.0 module as well:
However, PG-API is recommended as it provides greater utility.
Once installed, try out the pg_python console script:
$ python3 -m postgresql.bin.pg_python -h localhost -p port -U theuser -d database_name
If a successful connection is made to the remote host, it will provide a Python console with the database connection bound to the db name.
py-postgresql is not yet another PostgreSQL driver, it’s been in development for years. py-postgresql is the Python 3 port of the pg_proboscis driver and integration of the other pg/python projects.
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