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graphlite's Introduction

graphlite

Build

Graphlite is an MIT-licensed graph DB for Python.

There are currently no embedded graph databases for Python. Graphlite aims to change that by building a simple and fast graph layer over SQLite. Similar to FlockDB, Graphlite only stores adjacency lists, but they can be queried in the style of normal graph databases, e.g. with traversals.

>>> import graphlite as g
>>> db = g.connect(':memory:', graphs=['knows'])

>>> with db.transaction() as t:
...     for person in [2, 3]:
...         t.store(g.V(1).knows(person))
...

>>> db.find(g.V(1).knows).to(list)
[2, 3]

Graphlite inherits it's API from that of FlockDB's. Also, like FlockDB Graphlite only stores the relations between the nodes, which are integers- not the data of the nodes themselves. You will therefore need a high performance database like BerkleyDB or one of the dbm implementations to store your data.

Features

  • Small, easy to learn API with around 100% coverage
  • Lazy generator based API when querying
  • Highly documented codebase

Installation

To install Graphlite, simply:

$ pip install graphlite

graphlite's People

Contributors

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graphlite's Issues

Not working on Colab

Should this be possible?

import graphlite as g
db = g.connect('graph.db', graphs=['knows'])

print(db)
with db.transaction():
  with open('connections.csv', newline='') as csvfile:
    reader = csv.DictReader(csvfile)
    for row in reader:
      f = row['\ufefffrom']
      t = row['to']
      print(f,"-->" , t, row['detail'] )      
      db.store(g.V(f).knows(t))

I get ...

AttributeError                            Traceback (most recent call last)
<ipython-input-41-6bc10dc6ac5f> in <module>()
     11       print(f,"-->" , t, row['detail'] )
     12 
---> 13       db.store(g.V(f).knows(t))
     14 

AttributeError: 'Graph' object has no attribute 'store'

See: https://colab.research.google.com/drive/1Hf2JN6d4QVAD3GvqJ2HfjhVSg17KpQC-#scrollTo=2xwp9DDOvL13&uniqifier=1

Thank you

example not building?

 >>> import graphlite as g
 >>> db = g.connect(':memory:', graphs=['knows'])
 >>> with db.transaction():
 ...     for person in [2, 3]:
 ...             db.store(g.V(1).knows(person))
 ... 
 Traceback (most recent call last):
   File "<stdin>", line 3, in <module>
 AttributeError: 'Graph' object has no attribute 'store'

maybe I am doing it wrong but it looks to me like the example you guys posted

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