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توضیحات

AllegroGraph Python client

ویژگی	مقدار
سیستم عامل	-
نام فایل	agraph-python-6.2.2.0.4
نام	agraph-python
نسخه کتابخانه	6.2.2.0.4
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Franz Inc.
ایمیل نویسنده	support@franz.com
آدرس صفحه اصلی	http://franz.com/agraph/support/documentation/current/python-tutorial/python-API.html
آدرس اینترنتی	https://pypi.org/project/agraph-python/
مجوز	MIT

AllegroGraph Python API ======================= |build-status| |rtd-status| |pypi-status| |conda-status| The AllegroGraph Python API offers convenient and efficient access to an AllegroGraph server from a Python-based application. This API provides methods for creating, querying and maintaining RDF data, and for managing the stored triples. The AllegroGraph Python API deliberately emulates the Eclipse RDF4J (formerly Aduna Sesame) API to make it easier to migrate from RDF4J to AllegroGraph. The AllegroGraph Python API has also been extended in ways that make it easier and more intuitive than the RDF4J API. .. When including this in Sphinx omit the header section: SPHINX-START-HERE Requirements ------------ Python versions 2.7+ and 3.5+ are supported. The installation method described here uses the pip package manager. On some systems this might require installing an additional package (e.g. ``python-pip`` on RHEL/CentOS systems). All third-party libraries used by the Python client will be downloaded automatically during installation. See also the `Optional requirements`_ section below. Installation ------------ .. important:: It is highly recommended to perform the install in a `virtualenv`_ environment. The client can be installed from PyPI_ using the ``pip`` package manager:: pip install agraph-python Alternatively, a distribution archive can be obtained from ftp://ftp.franz.com/pub/agraph/python-client/ and installed using `pip`:: pip install agraph-python-<VERSION>.tar.gz .. warning:: Python 2.6 users should consider installing the simplejson package:: pip install simplejson since the built-in JSON module in that version of Python offers unsatisfactory performance. The AllegroGraph Python client will detect and use simplejson automatically if it is installed. Offline installation ~~~~~~~~~~~~~~~~~~~~ If it is not possible to access PyPI_ from the target machine, the following steps should be taken: * In a compatible environment with unrestricted network access run:: pip wheel agraph-python * If desired do the same for optional dependencies:: pip wheel pycurl simplejson * This will generate a number of ``.whl`` files in the current directory. These files must be transferred to the target machine. * On the target machine use this command to install:: pip install --no-index --find-links=<DIR> agraph-python where ``<DIR>`` is the directory containing the ``.whl`` files generated in the previous step. Testing ------- To validate the installation make sure that you have access to an AllegroGraph server and run the following Python script:: from franz.openrdf.connect import ag_connect with ag_connect('repo', host='HOST', port='PORT', user='USER', password='PASS') as conn: print (conn.size()) Substitute appropriate values for the HOST/PORT/USER/PASS placeholders. If the script runs successfully a new repository named `repo` will be created. Proxy setup ----------- It is possible to configure the AllegroGraph Python client to use a proxy for all its connection to the server. This can be achieved by setting the ``AGRAPH_PROXY`` environment variable, as in the following example:: # Create a SOCKS proxy for tunneling to an internal network ssh -fN -D 1080 user@gateway.example.com # Configure agraph-python to use this proxy export AGRAPH_PROXY=socks://localhost:1080 The format of the ``AGRAPH_PROXY`` value is ``TYPE://HOST:PORT``, where ``TYPE`` can be either ``http``, ``socks4``, ``socks5`` or ``socks`` (a synonym for ``socks5``). Note that if a SOCKS proxy is used, DNS lookups will be performed by the proxy server. Unit tests ~~~~~~~~~~ The Python client includes a suite of unit tests that can be run after installation. The tests are executed using the ``pytest`` framework and also use a few utilities from ``nose``, so these two packages have to be installed. We also need the ``pytest-mock`` plugin:: pip install pytest pytest-mock nose The tests require a running AllegroGraph server instance. The configuration of this server is passed to the tests through environment variables:: # Host and port where the server can be reached. These values are the # default, it is only necessary to define the variables below if your # setup is different export AGRAPH_HOST=localhost export AGRAPH_PORT=10035 # Tests will create repositories in this catalog. # It must exist on the server. Use "/" for the root catalog. export AGRAPH_CATALOG=tests # Login credentials for the AG server. # The user must have superuser privileges. export AGRAPH_USER=test # Use a prompt to read the password read -s -r -p "Password for user ${AGRAPH_USER}: " AGRAPH_PASSWORD export AGRAPH_PASSWORD To run the tests, type:: pytest --pyargs franz.openrdf.tests.tests --pyargs franz.openrdf.tests.newtests Optional requirements --------------------- The Python client can utilize a few additional third-party libraries if these are available on the host system: * pycurl: can be used as the HTTP backend. It might offer better performance than ``requests`` (the default backend). * simplejson: recommended for Python 2.6 users to significantly improve performance. Has negligible impact on other Python versions. These can be downloaded and installed from PyPI_:: pip install pycurl pip install simplejson Since the packages discussed here use native extensions, it is necessary to have a proper development environment set up so that the compilation may succeed. This environment must include: * A C compiler * Python development headers * libcurl development headers Below we describe more detailed setup instructions for some of the supported systems. Windows ------- The required packages are available in binary form for Windows, so it is not necessary to install any compilers or headers. RHEL 6/7 and compatible systems ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ On RHEL-like systems the requirements mentioned above can be satisfied by following these steps (note that root privileges are required): * Enable EPEL_ repositories, since some of the required packages are only available there. The detailed instructions can be found `here <https://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F>`_. On CentOS systems, simply run:: yum -y install epel-release * Install the required packages:: yum -y install python-devel python-pip libcurl-devel gcc * Before installing the AllegroGraph Python client make sure that the following environment variable is set:: export PYCURL_SSL_LIBRARY=nss * To use virtual environments (recommended) an additional package is needed:: yum -y install python-virtualenv Ubuntu ~~~~~~ The following packages are required to use the client with Python 2:: apt-get install python-pip libcurl-gnutls libcurl4-gnutls-dev libgnutls28-dev For Python 3 this becomes:: apt-get install python3-pip libcurl-gnutls libcurl4-gnutls-dev libgnutls28-dev .. note:: *Using different SSL backends.* Ubuntu offers three variants of curl, built using different SSL libraries. These variants differ in their licensing and SSL related capabilities (see https://curl.haxx.se/docs/ssl-compared.html for more details). The instructions above use the GnuTLS version. In most cases this is an acceptable choice, but it is possible to use a different SSL implementation by installing appropriate packages before installing the AllegroGraph Python client. To use the OpenSSL backend in curl:: apt-get install libcurl4-openssl-dev libssl-dev For GnuTLS:: apt-get install libcurl4-gnutls-dev libgnutls28-dev For NSS:: apt-get install libcurl4-nss-dev libnss3-dev Note that if the client has already been installed it is necessary to reinstall the ``pycurl`` package in order to switch SSL backends:: # Uninstall old package pip uninstall pycurl # Reinstall, ignoring PIP cache (to force recompilation) pip install --no-cache-dir pycurl Arch Linux ~~~~~~~~~~ On Arch the following packages are needed to use the client with Python 2:: pacman -S gcc python2 python2-pip libcurl For Python 3 use:: pacman -S gcc python python-pip libcurl Troubleshooting --------------- If you see an error similar to the following:: ImportError: pycurl: libcurl link-time ssl backend (nss) is different from compile-time ssl backend (none/other) Perform this procedure (replacing `<VERSION>` with the actual version):: # Uninstall pycurl: pip uninstall pycurl # Set the required compile-time option for pycurl export PYCURL_SSL_LIBRARY=nss # Reinstall, but ignore cached packages (force recompile) pip install --no-cache-dir agraph-<VERSION>-python-client.tar.gz .. _PyPI: https://pypi.python.org/ .. _EPEL: https://fedoraproject.org/wiki/EPEL .. _virtualenv: https://virtualenv.pypa.io/ .. |build-status| image:: https://img.shields.io/travis/franzinc/agraph-python.svg :alt: build status :scale: 100% :target: https://travis-ci.org/franzinc/agraph-python .. |conda-status| image:: https://img.shields.io/conda/v/franzinc/agraph-python.svg :alt: conda package :scale: 100% :target: https://anaconda.org/franzinc/agraph-python .. |pypi-status| image:: https://img.shields.io/pypi/v/agraph-python.svg :alt: PyPI package :scale: 100% :target: https://pypi.python.org/pypi/agraph-python .. |rtd-status| image:: https://img.shields.io/readthedocs/agraph-python.svg :alt: Docs :scale: 100% :target: https://agraph-python.readthedocs.io/en/latest/

نیازمندی

مقدار	نام
>=0.18.2	future
>=2.23.0	requests
>=0.1.12	iso8601
>=1.10.0	six
<8.0,>=7.19.0	pycurl
>=2.0.9	simplejson

نحوه نصب

نصب پکیج whl agraph-python-6.2.2.0.4:

pip install agraph-python-6.2.2.0.4.whl

نصب پکیج tar.gz agraph-python-6.2.2.0.4:

pip install agraph-python-6.2.2.0.4.tar.gz