pg0-embedded 0.14.2

Python API for pg0 - embedded PostgreSQL

pg0 - PostgreSQL for Python

Zero-config PostgreSQL with pgvector. No installation, no Docker, no configuration.

Install

pip install pg0-embedded

Usage

from pg0 import Pg0

# Basic usage
with Pg0() as pg:
    print(pg.uri)  # postgresql://postgres:postgres@127.0.0.1:5432/postgres
    pg.execute("CREATE EXTENSION IF NOT EXISTS vector")
    pg.execute("SELECT version()")

# Custom configuration
pg = Pg0(
    name="myapp",
    port=5433,
    username="myuser",
    password="mypass",
    database="mydb",
    config={"shared_buffers": "512MB"}
)
pg.start()
pg.stop()

API

Pg0 Class

Method	Description
start()	Start PostgreSQL, returns InstanceInfo
stop()	Stop PostgreSQL
drop()	Stop and delete all data
info()	Get instance info
execute(sql)	Run SQL query
uri	Connection URI (property)
running	Check if running (property)

Module Functions

import pg0

pg0.start(name="default", port=5432, ...)  # Start instance
pg0.stop(name="default")                    # Stop instance
pg0.drop(name="default")                    # Delete instance
pg0.info(name="default")                    # Get instance info
pg0.list_instances()                        # List all instances

Getting Connection URI

from pg0 import Pg0

pg = Pg0()
pg.start()

# Using the uri property
print(pg.uri)  # postgresql://postgres:postgres@127.0.0.1:5432/postgres

# Or using info()
info = pg.info()
print(info.uri)  # postgresql://postgres:postgres@127.0.0.1:5432/postgres
print(info.port)  # 5432
print(info.username)  # postgres
print(info.database)  # postgres

Supported Platforms

Pre-built wheels are available for:

Platform	Architecture	Wheel Tag
macOS	Apple Silicon (M1/M2/M3)	macosx_14_0_arm64
Linux	x86_64 (glibc)	manylinux_2_35_x86_64
Linux	ARM64 (glibc)	manylinux_2_35_aarch64
Windows	x64	win_amd64

For other platforms, install from source (requires Rust toolchain):

pip install pg0-embedded --no-binary pg0-embedded

Links

• GitHub
• CLI Documentation