eralchemy 0.0.12

Simple entity relation (ER) diagrams generation

Entity relation (ER) diagrams generator

ERAlchemy is integrated with SQLAlchemy and is able to generate the ER digram from an existing database.

Example

Example for a graph

Quick Start

Use from python

from eralchemy import draw_er
# Draw from SQLAlchemy base
draw_er(Base, 'erd_from_sqlalchemy.png')

# Draw from database
draw_er("sqlite:///relative/path/to/db.db", 'erd_from_sqlite.png')

Use from the command line

$ eralchemy -i sqlite:///relative/path/to/db.db -o erd_from_sqlite.png

Install

To install ERAlchemy, just do

pip install eralchemy

ERAlchemy requires GraphViz to generate the graphs.

Architecture

Architecture schema

Thanks to it’s modular architecture, it can be connected to other ORMs/ODMs/OGMs/O*Ms.

Notes

ERAlchemy was inspired by erd.

License

Released under an Apache License 2.0

Creator: Alexis Benoist