Skip to main content

RDF support for Pandas

Project description

RdfPandas is a module providing RDF support for Pandas. It consists of two simple functions for Graph to DataFrame conversion and DataFrame to Graph conversion.

Getting Started

For more information about Resource Description Framework (RDF) and Pandas see:

Prerequisites

You will need Python 3 to use Pandas and RdfPandas.

Installation

pip install rdfpandas

Usage

Creating RDF from DataFrame

As of version 1.1.0 NamespaceManager can be supplied to rdflib.to_graph for conversion to Graph.

from rdfpandas.graph import to_graph
import pandas as pd
import rdflib

df = pd.read_csv('to_graph_test.csv', index_col = '@id', keep_default_na = False)
namespace_manager = NamespaceManager(Graph())
namespace_manager.bind('skos', SKOS)
namespace_manager.bind('rdfpandas', Namespace('http://github.com/cadmiumkitty/rdfpandas/'))
g = to_graph(df, namespace_manager)
s = g.serialize(format = 'turtle')

Creating DataFrame from RDF

from rdfpandas.graph import to_dataframe
import pandas as pd
import rdflib

g = rdflib.Graph()
g.parse('to_df_test.ttl', format = 'ttl')
df = to_dataframe(g)
df.to_csv('test.csv', index = True, index_label = "@id")

Gotchas

No special effort is made for dealing with types, so please be aware of Pandas features such as https://pandas.pydata.org/pandas-docs/stable/user_guide/gotchas.html#support-for-integer-na that may result in surprising RDF statements like "10.0"^^<xsd:integer>.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for rdfpandas, version 1.1.1
Filename, size File type Python version Upload date Hashes
Filename, size rdfpandas-1.1.1-py3-none-any.whl (5.8 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size rdfpandas-1.1.1.tar.gz (5.7 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page