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This project forked from bdeggleston/rexpro-python

Python RexPro Interface

License: Other

Shell 0.81% Python 99.19%

rexpro-python's Introduction

rexpro

rexpro-python is a RexPro socket interface for python, specifically designed for use with Titan (http://thinkaurelius.github.io/titan/) via RexPro (https://github.com/tinkerpop/rexster/wiki/RexPro). For those already familiar with Blueprints (https://github.com/tinkerpop/blueprints/wiki) there is is a simple example.

Documentation

rexpro documentation can be found at http://rexpro-python.readthedocs.org/

Installation

$ pip install rexpro

Testing

To get rexpro unit tests running you'll need a titan installation with rexster server configured with a test graph setup::

    <graph>
        <graph-name>graph</graph-name>
        <graph-type>com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration</graph-type>
        <!-- <graph-location>/tmp/titan</graph-location> -->
        <graph-read-only>false</graph-read-only>
        <properties>
            <storage.backend>cassandra</storage.backend>
            <storage.index.search.backend>elasticsearch</storage.index.search.backend>
            <storage.index.search.directory>../db/es</storage.index.search.directory>
            <storage.index.search.client-only>false</storage.index.search.client-only>
            <storage.index.search.local-mode>true</storage.index.search.local-mode>
        </properties>
        <extensions>
          <allows>
            <allow>tp:gremlin</allow>
          </allows>
        </extensions>
    </graph>
    <graph>
        <graph-name>graph</graph-name>
        <graph-type>tinkergraph</graph-type>
        <graph-mock-tx>true</graph-mock-tx>
        <extensions>
            <allows>
                <allow>tp:gremlin</allow>
            </allows>
        </extensions>
    </graph>
    <graph>
        <graph-name>tinkergraph</graph-name>
        <graph-type>tinkergraph</graph-type>
        <graph-location>data/graph-example-1</graph-location>
        <graph-storage>graphson</graph-storage>
        <extensions>
            <allows>
                <allow>tp:gremlin</allow>
            </allows>
        </extensions>
    </graph>

rexpro-python's People

Contributors

Stargazers

Watchers

Forkers

atomos eramirem aolieman corbinbs eortiz1 topiaruss yqt

rexpro-python's Issues

Connection Pooling

Connection Pooling would be helpful. Would be ideal if green-thread friendly - considering using the gevent library

IncompleteRexProRequestException: Message envelope is incomplete

I get a ton of these in titan-server-0.4.4/log/rextitan.log:

Grizzly(3)] WARN com.tinkerpop.rexster.protocol.filter.RexProServerFilter - com.tinkerpop.rexster.protocol.server.IncompleteRexProRequestException: Message envelope is incomplete. Message length set to 4617 but the buffer only contains 1448

I assume it belongs here since I'm using rexpro-python (0.3.3) on the client to submit requests to the server where I'm seeing these.

Unit test without full titan server?

Howdy,

Is it possible to run unit tests without actually having a full titan server? I was thinking about a way to run an embedded rexster server, with an in-memory TinkerGraph for unit testing, have you ever considered this?

Thanks

RexProSerializationException on com.thinkaurelius.titan.core.attribute.FullDouble

Script returning vertex which contains properties of such type fails with RexProSerializationException. Converting the properties to plain Double before returning vertex works.

Missing import: six

I'm getting an error after upgrading to the latest version (0.1.2) about a missing module: six

Here is a simple log of what's happening:

C:\temp\test> virtualenv _env
New python executable in _env\Scripts\python.exe
Installing setuptools, pip...done.
C:\temp\test> .\_env\Scripts\activate.ps1
(_env) C:\temp\test> pip install rexpro
Downloading/unpacking rexpro
  Downloading rexpro-0.1.2.tar.gz
  Running setup.py (path:C:\temp\test\_env\build\rexpro\setup.py) egg_info for package rexpro
    C:\Python27\Lib\distutils\dist.py:267: UserWarning: Unknown distribution option: 'extra_requires'
      warnings.warn(msg)

Downloading/unpacking msgpack-python (from rexpro)
  Running setup.py (path:C:\temp\test\_env\build\msgpack-python\setup.py) egg_info for package msgpack-python

Installing collected packages: rexpro, msgpack-python
  Running setup.py install for rexpro
    C:\Python27\Lib\distutils\dist.py:267: UserWarning: Unknown distribution option: 'extra_requires'
      warnings.warn(msg)

  Running setup.py install for msgpack-python
    building 'msgpack._packer' extension
    WARNING: Failed to compile extensiom modules.
    msgpack uses fallback pure python implementation.
    Unable to find vcvarsall.bat
    building 'msgpack._unpacker' extension
    WARNING: Failed to compile extensiom modules.
    msgpack uses fallback pure python implementation.
    Unable to find vcvarsall.bat

Successfully installed rexpro msgpack-python
Cleaning up...
(_env) C:\temp\test> pip list
msgpack-python (0.4.2)
pip (1.5.4)
rexpro (0.1.2)
setuptools (2.2)
(_env) C:\temp\test> python
Python 2.7.6 (default, Nov 10 2013, 19:24:24) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from rexpro import RexProConnection
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\temp\test\_env\lib\site-packages\rexpro\__init__.py", line 4, in <module>
    from rexpro.connection import RexProConnection
  File "C:\temp\test\_env\lib\site-packages\rexpro\connection.py", line 2, in <module>
    from rexpro.messages import ErrorResponse
  File "C:\temp\test\_env\lib\site-packages\rexpro\messages.py", line 12, in <module>
    from rexpro._compat import string_types, integer_types, float_types, array_types
  File "C:\temp\test\_env\lib\site-packages\rexpro\_compat.py", line 2, in <module>
    import six
ImportError: No module named six
>>>

Polling for features unnecessarily

Hi,

We noticed that the rexpro client was frequently polling for features (g.getFeatures().toMap()). We saw it executing this query in rexpro/connectors/base.py when a new session is created, but nothing ever uses the result. Can this be removed? We deleted it in our fork and everything seems to be working.

Adam

Will rexpro-python support multi-host connection?

AFAIK, multi-host is supported in rexpro-java(link). It can be useful while a single rexter server is down for some reason but others are still woring.

Possible msgpack issues

Hello,

Please be aware that a new version of msgpack-python was released yesterday. There is a serious bug between this new version of msgpack and rexpro-python that revolves around casting params as long (ex: param: 1234567890L) . It is not yet clear what the packed buffer contains, however, Rexster seems to evaluate the deserialized param as null.

I have filed bug msgpack/msgpack-python#169 but it is unclear wether it will be fixed.

Python3 asynio supprt?

Hi, do you plan to add python3 asyncio/coroutines support?