python-arango: A Python repository from ex-nerd

Welcome to the GitHub page for python-arango, a Python driver for ArangoDB.

Announcements

Python-arango version 5.0.0 is finally up! This release supports ArangoDB version 3.5+ only. It also breaks backward-compatibility and you must make changes in your application code. Please see the releases page for details.

Features

Pythonic interface
Lightweight
High API coverage

Compatibility

Python versions 2.7, 3.4, 3.5, 3.6 and 3.7 are supported
Python-arango 5.x supports ArangoDB 3.5+
Python-arango 4.x supports ArangoDB 3.3 ~ 3.4 only
Python-arango 3.x supports ArangoDB 3.0 ~ 3.2 only
Python-arango 2.x supports ArangoDB 1.x ~ 2.x only

Installation

To install a stable version from PyPi:

~$ pip install python-arango

To install the latest version directly from GitHub:

~$ pip install -e git+git@github.com:joowani/python-arango.git@master#egg=python-arango

You may need to use sudo depending on your environment.

Getting Started

Here is a simple usage example:

from arango import ArangoClient

# Initialize the client for ArangoDB.
client = ArangoClient(hosts='http://localhost:8529')

# Connect to "_system" database as root user.
sys_db = client.db('_system', username='root', password='passwd')

# Create a new database named "test".
sys_db.create_database('test')

# Connect to "test" database as root user.
db = client.db('test', username='root', password='passwd')

# Create a new collection named "students".
students = db.create_collection('students')

# Add a hash index to the collection.
students.add_hash_index(fields=['name'], unique=True)

# Insert new documents into the collection.
students.insert({'name': 'jane', 'age': 39})
students.insert({'name': 'josh', 'age': 18})
students.insert({'name': 'judy', 'age': 21})

# Execute an AQL query and iterate through the result cursor.
cursor = db.aql.execute('FOR doc IN students RETURN doc')
student_names = [document['name'] for document in cursor]

Here is another example with graphs:

from arango import ArangoClient

# Initialize the client for ArangoDB.
client = ArangoClient(hosts='http://localhost:8529')

# Connect to "test" database as root user.
db = client.db('test', username='root', password='passwd')

# Create a new graph named "school".
graph = db.create_graph('school')

# Create vertex collections for the graph.
students = graph.create_vertex_collection('students')
lectures = graph.create_vertex_collection('lectures')

# Create an edge definition (relation) for the graph.
register = graph.create_edge_definition(
    edge_collection='register',
    from_vertex_collections=['students'],
    to_vertex_collections=['lectures']
)

# Insert vertex documents into "students" (from) vertex collection.
students.insert({'_key': '01', 'full_name': 'Anna Smith'})
students.insert({'_key': '02', 'full_name': 'Jake Clark'})
students.insert({'_key': '03', 'full_name': 'Lisa Jones'})

# Insert vertex documents into "lectures" (to) vertex collection.
lectures.insert({'_key': 'MAT101', 'title': 'Calculus'})
lectures.insert({'_key': 'STA101', 'title': 'Statistics'})
lectures.insert({'_key': 'CSC101', 'title': 'Algorithms'})

# Insert edge documents into "register" edge collection.
register.insert({'_from': 'students/01', '_to': 'lectures/MAT101'})
register.insert({'_from': 'students/01', '_to': 'lectures/STA101'})
register.insert({'_from': 'students/01', '_to': 'lectures/CSC101'})
register.insert({'_from': 'students/02', '_to': 'lectures/MAT101'})
register.insert({'_from': 'students/02', '_to': 'lectures/STA101'})
register.insert({'_from': 'students/03', '_to': 'lectures/CSC101'})

# Traverse the graph in outbound direction, breadth-first.
result = graph.traverse(
    start_vertex='students/01',
    direction='outbound',
    strategy='breadthfirst'
)

Check out the documentation for more information.

Contributing