pyblueprints

:synopsis: Provides a layer to abstract the Python developer from the graph database system used

Following the set of interfaces provided by tinkerpop for Blueprints, this project aims to give Python developers a similar functionality. A set of abstract classes are defined in order to guide the design of implementations for the different graph database engines.

Features

This is an experimental version only permitting partial functionality to:

• Rexster infrastructure, supporting every database supported by Rexster (https://github.com/tinkerpop/rexster/)
• Neo4j database providing abstraction over the neo4j-rest-client API.

Please keep in mind to backup your data before trying this library.

Installation

The easiest way to get pyblueprints installed in your virtualenv is by:

pip install pyblueprints

Usage

This version of pybluerprints allows you to connect to graph databases by a Rexster Instance or through the neo4j-rest-client API. Therefore a Neo4j database can be accessed with both options, although the Neo4j transactional mode is only available through the later. The Rexster instance also provides connection to the following databases:

• TinkerGraph
• OrientDB
• DEX
• Sail RDF Stores

Rexster """"""" Connecting to a Rexster instance

from pyblueprints import RexsterServer, RexsterGraph, RexsterIndexableGraph

Connecting to server

HOST = 'http://localhost:8182' server = RexsterServer(HOST)

List graphs availbale in server

server.graphs() [u'tinkergraph', u'gratefulgraph', u'tinkergraph-readonly', u'sailgraph', u'emptygraph']

Connecting to a given graph

graph = RexsterIndexableGraph(server, 'tinkergraph')

neo4j-rest-client """""""""""""""""

Creating a graph object through the neo4j-rest-client API

from pyblueprints.neo4j import Neo4jGraph graph = Neo4jGraph('http://localhost:7474/db/data')

Creating an indexable graph object through the neo4j-rest-client API

from pyblueprints.neo4j import Neo4jIndexableGraph graph = Neo4jIndexableGraph('http://localhost:7474/db/data')

The available classes are: - Neo4jGraph - Neo4jIndexableGraph - Neo4jTransactionalGraph - Neo4jTransactionalIndexableGraph

code examples """""""""""""

Add/Remove Vertex '''''''''''''''''

vertex = graph.addVertex() graph.removeVertex(vertex)

Add/Remove Edge '''''''''''''''

v1 = graph.addVertex() v2 = graph.addVertex() newEdge = graph.addEdge(v1, v2, 'myLabel') graph.removeEdge(newEdge)

Vertex Methods ''''''''''''''

graph= Neo4jGraph(HOST) v1 = graph.addVertex() v2 = graph.addVertex() newEdge = graph.addEdge(v1, v2, 'myLabel') vertex = graph.getVertex(_id)

get methods return a generator function

edge = list(vertex.getBothEdges())[0] edge = list(vertex.getOutEdges())[0] edges = list(vertex.getInEdges())

Vertex/Edges properties '''''''''''''''''''''''

vertex_id = vertex.getId() vertex.setProperty('name', 'paquito') print vertex.getPropertyKeys() print vertex.getProperty('name') vertex.removeProperty('name')

Edge Methods ''''''''''''

outVertex = edge.getOutVertex() inVertex = edge.getInVertex() print getLabel()

Add/Remove Manual Index '''''''''''''''''''''''

index = graph.createManualIndex('myManualIndex', 'vertex') graph.dropIndex('myManualIndex', 'vertex')

Index Methods '''''''''''''

index = graph.getIndex('myManualIndex', 'vertex') vertex = graph.addVertex() index.put('key1', 'value1', vertex) print index.count('key1', 'value1') print index.getIndexName() print index.getIndexClass() print index.getIndexType()

get returns a generator function

vertex2 = list(index.get('key1', 'value1'))[0] index.remove('key1', 'value1', vertex)

Transactional Methods '''''''''''''''''''''

graph= Neo4jTransactionalGraph(HOST) graph.startTransaction() v = graph.addVertex()

Stoping calls the commit

graph.stopTransaction() vertexId = v.getId() v = graph.getVertex(vertexId) graph.startTransaction() v.setProperty('p1', 'v1') graph.stopTransaction()

Issues

Bump ipython from 0.12 to 7.16.3

opened on 2022-01-21 18:56:55 by dependabot[bot]

Bumps ipython from 0.12 to 7.16.3.

Release notes

Sourced from ipython's releases.

7.9.0

No release notes provided.

7.8.0

No release notes provided.

7.7.0

No release notes provided.

7.6.1

No release notes provided.

7.6.0

No release notes provided.

7.5.0

No release notes provided.

7.4.0

No release notes provided.

7.3.0

No release notes provided.

7.2.0

No release notes provided.

7.1.1

No release notes provided.

7.1.0

No release notes provided.

7.0.1

No release notes provided.

7.0.0

No release notes provided.

7.0.0-doc

No release notes provided.

7.0.0rc1

No release notes provided.

7.0.0b1

No release notes provided.

6.2.1

No release notes provided.

... (truncated)

Commits

• d43c7c7 release 7.16.3
• 5fa1e40 Merge pull request from GHSA-pq7m-3gw7-gq5x
• 8df8971 back to dev
• 9f477b7 release 7.16.2
• 138f266 bring back release helper from master branch
• 5aa3634 Merge pull request #13341 from meeseeksmachine/auto-backport-of-pr-13335-on-7...
• bcae8e0 Backport PR #13335: What's new 7.16.2
• 8fcdcd3 Pin Jedi to <0.17.2.
• 2486838 release 7.16.1
• 20bdc6f fix conda build
• Additional commits viewable in compare view

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Bump httplib2 from 0.7.2 to 0.19.0

opened on 2021-02-08 20:14:44 by dependabot[bot]

Bumps httplib2 from 0.7.2 to 0.19.0.

Changelog

Sourced from httplib2's changelog.

0.19.0

auth: parse headers using pyparsing instead of regexp httplib2/httplib2#182

auth: WSSE token needs to be string not bytes httplib2/httplib2#179

0.18.1

explicit build-backend workaround for pip build isolation bug "AttributeError: 'module' object has no attribute 'legacy'" on pip install httplib2/httplib2#169

0.18.0

IMPORTANT security vulnerability CWE-93 CRLF injection Force %xx quote of space, CR, LF characters in uri. Special thanks to Recar https://github.com/Ciyfly for discrete notification. https://cwe.mitre.org/data/definitions/93.html

0.17.4

Ship test suite in source dist httplib2/httplib2#168

0.17.3

IronPython2.7: relative import iri2uri fixes ImportError httplib2/httplib2#163

0.17.2

python3 + debug + IPv6 disabled: https raised "IndexError: Replacement index 1 out of range for positional args tuple" httplib2/httplib2#161

0.17.1

python3: no_proxy was not checked with https httplib2/httplib2#160

0.17.0

feature: Http().redirect_codes set, works after follow(_all)_redirects check This allows one line workaround for old gcloud library that uses 308 response without redirect semantics. httplib2/httplib2#156

0.16.0

... (truncated)

Commits

• See full diff in compare view

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Bump requests from 0.5.0 to 2.20.0

opened on 2019-10-02 03:29:20 by dependabot[bot]

Bumps requests from 0.5.0 to 2.20.0.

Changelog

*Sourced from [requests's changelog](https://github.com/psf/requests/blob/master/HISTORY.md).* > 2.20.0 (2018-10-18) > ------------------- > > **Bugfixes** > > - Content-Type header parsing is now case-insensitive (e.g. > charset=utf8 v Charset=utf8). > - Fixed exception leak where certain redirect urls would raise > uncaught urllib3 exceptions. > - Requests removes Authorization header from requests redirected > from https to http on the same hostname. (CVE-2018-18074) > - `should_bypass_proxies` now handles URIs without hostnames (e.g. > files). > > **Dependencies** > > - Requests now supports urllib3 v1.24. > > **Deprecations** > > - Requests has officially stopped support for Python 2.6. > > 2.19.1 (2018-06-14) > ------------------- > > **Bugfixes** > > - Fixed issue where status\_codes.py's `init` function failed trying > to append to a `__doc__` value of `None`. > > 2.19.0 (2018-06-12) > ------------------- > > **Improvements** > > - Warn user about possible slowdown when using cryptography version > < 1.3.4 > - Check for invalid host in proxy URL, before forwarding request to > adapter. > - Fragments are now properly maintained across redirects. (RFC7231 > 7.1.2) > - Removed use of cgi module to expedite library load time. > - Added support for SHA-256 and SHA-512 digest auth algorithms. > - Minor performance improvement to `Request.content`. > - Migrate to using collections.abc for 3.7 compatibility. > > **Bugfixes** > > - Parsing empty `Link` headers with `parse_header_links()` no longer > return one bogus entry. > ... (truncated)

Commits

- [`bd84045`](https://github.com/psf/requests/commit/bd840450c0d1e9db3bf62382c15d96378cc3a056) v2.20.0 - [`7fd9267`](https://github.com/psf/requests/commit/7fd9267b3bab1d45f5e4ac0953629c5531ecbc55) remove final remnants from 2.6 - [`6ae8a21`](https://github.com/psf/requests/commit/6ae8a2189235b62d7c5b2a6b95528750f046097c) Add myself to AUTHORS - [`89ab030`](https://github.com/psf/requests/commit/89ab030cdb83a728a30e172bc65d27ba214d2eda) Use comprehensions whenever possible - [`2c6a842`](https://github.com/psf/requests/commit/2c6a8426aebd853966747f2c851f551c583cb21a) Merge pull request [#4827](https://github-redirect.dependabot.com/requests/requests/issues/4827) from webmaven/patch-1 - [`30be889`](https://github.com/psf/requests/commit/30be889651e7034eaa56edaf5794d68ffbfde9ed) CVE URLs update: www sub-subdomain no longer valid - [`a6cd380`](https://github.com/psf/requests/commit/a6cd380c640087218695bc7c62311a4843777e43) Merge pull request [#4765](https://github-redirect.dependabot.com/requests/requests/issues/4765) from requests/encapsulate_urllib3_exc - [`bbdbcc8`](https://github.com/psf/requests/commit/bbdbcc8f0553f112ff68b0950b4128bd8af000fc) wrap url parsing exceptions from urllib3's PoolManager - [`ff0c325`](https://github.com/psf/requests/commit/ff0c325014f817095de35013d385e137b111d6e8) Merge pull request [#4805](https://github-redirect.dependabot.com/requests/requests/issues/4805) from jdufresne/https - [`b0ad249`](https://github.com/psf/requests/commit/b0ad2499c8641d29affc90f565e6628d333d2a96) Prefer https:// for URLs throughout project - Additional commits viewable in [compare view](https://github.com/requests/requests/compare/v0.5.0...v2.20.0)

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Query object

opened on 2015-05-19 11:24:56 by jenmud

Hi there,

Will you be implementing the blueprints query interface and object?

add draft support to mongodb, require pymongo

opened on 2015-04-23 08:27:57 by cocoon-project

a first shot to add mongodb as a backend needs pymongo ( add to requirements.txt ?)