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
Runtime paths
Set PG0_EXECUTABLE to the absolute path of an existing pg0 executable to use
it instead of the binary bundled in the wheel. An invalid override raises
Pg0NotFoundError; it never silently falls back to the bundled binary.
The CLI also accepts PG0_HOME for writable instance state and
PG0_INSTALLATION_DIR for extracted PostgreSQL and pgvector files. Both must
be absolute paths and are inherited by SDK subprocesses. The installation root
contains a version subdirectory, for example 18.1.0/bin/postgres.exe.
--data-dir / Pg0(data_dir=...) continues to override an instance's data path.
See runtime directories
for provisioning and permission requirements.
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
1 maintainer
Metadata
1 maintainer
Release files for pg0-embedded 0.16.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| pg0_embedded-0.16.0.tar.gz | 22.2 kB | With provenance | Details for pg0_embedded-0.16.0.tar.gz |
Built distributions (wheels)
| File | Actions Reset | |||
|---|---|---|---|---|
| pg0_embedded-0.16.0-py3-none-win_amd64.whl | Python 3 | none | Windows x86-64 | Details for pg0_embedded-0.16.0-py3-none-win_amd64.whl |
| pg0_embedded-0.16.0-py3-none-manylinux_2_35_x86_64.whl | Python 3 | none | Linux glibc 2.35+ x86-64 | Details for pg0_embedded-0.16.0-py3-none-manylinux_2_35_x86_64.whl |
| pg0_embedded-0.16.0-py3-none-manylinux_2_35_aarch64.whl | Python 3 | none | Linux glibc 2.35+ ARM64 | Details for pg0_embedded-0.16.0-py3-none-manylinux_2_35_aarch64.whl |
| pg0_embedded-0.16.0-py3-none-macosx_15_0_x86_64.whl | Python 3 | none | macOS 15.0+ x86-64 | Details for pg0_embedded-0.16.0-py3-none-macosx_15_0_x86_64.whl |
| pg0_embedded-0.16.0-py3-none-macosx_14_0_arm64.whl | Python 3 | none | macOS 14.0+ ARM64 | Details for pg0_embedded-0.16.0-py3-none-macosx_14_0_arm64.whl |
Total release size: 142.0 MB
Release files / pg0_embedded-0.16.0.tar.gz
| Download URL | pg0_embedded-0.16.0.tar.gz |
|---|---|
| Size | 22.2 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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| Tags | Linux glibc 2.35+ x86-64 Python 3 |
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| Tags | Python 3 macOS 14.0+ ARM64 |
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