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Yet another PostgreSQL database driver

Project description

Yet another Python PostgreSQL database driver.

Pure python or Cython http://cython.org/ accelaleted.

Requirements

  • PostgreSQL 9.6+
  • Python 3.5+

Installation

$ pip install minipg

Example

Query:

import minipg
conn = minipg.connect(host='localhost',
                    user='postgres',
                    password='secret',
                    database='database_name')
cur = conn.cursor()
cur.execute('select foo, bar from baz')
for r in cur.fetchall():
   print(r[0], r[1])
conn.close()

COPY TO:

import minipg
conn = minipg.connect(host='localhost',
                    user='postgres',
                    password='secret',
                    database='database_name')
f = open('foo.txt', 'bw')
conn.execute('COPY foo_table TO stdout', f)
f.close()
conn.close()

COPY FROM:

import minipg
conn = minipg.connect(host='localhost',
                    user='postgres',
                    password='secret',
                    database='database_name')
f = open('foo.txt', 'br')
conn.execute('COPY foo_table FROM stdin', f)
f.close()
conn.close()

As sqlalchemy dialect:

from sqlalchemy.dialects import registry
registry.register("postgresql.minipg", "minipg.dialect", "PGDialect_minipg")

from sqlalchemy import create_engine
engine = create_engine('postgresql+minipg://postgres:secret@host/database_name')

Restrictions and Unsupported Features

  • Supported Authentication METHOD are only ‘trust’, ‘md5’ and ‘scram-sha-256’.
  • Not full support for array data types.
  • Not support for prepared statements.

For MicroPython

See https://github.com/nakagami/micropg . It’s a minipg subset driver.

Project details


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