Installation instructions & Running provided example

[samuel-kerrien]

I found your tool and felt it would be useful. I have honestly struggled with the installation (not being a python developer) so I thought I'd share so maybe you can improve your README. Also, I wasn't able to run the basic example and I'd love your help on this. Thanks in advance.

Installation

1. Install conda: https://docs.conda.io/en/latest/miniconda.html

2. Setup your conda environment:

conda create -yn sparqlgpviz python=3.7
conda activate sparqlgpviz

3. Install libs Please note that it is curently not possible to install all dependencies through pip install -r requirements.txt. rdflib is ok (even so you need to have a == instead of = in the requirements.txt). pygraphviz doesn't install I had to use conda to do it as explained on their website (https://pygraphviz.github.io/documentation/stable/install.html). So here is is

pip install rdflib
conda install --channel conda-forge pygraphviz

4. Check status

pip list

Package    Version
---------- ---------
certifi    2021.10.8
isodate    0.6.1
pip        21.2.2
pygraphviz 1.7
pyparsing  3.0.9
rdflib     4.2.2
setuptools 61.2.0
six        1.16.0
wheel      0.37.1

Running the example

cat simple/all.rq
SELECT * WHERE { ?s ?p ?o }

python3 sparqlgraphviz.py -i simple/all.rq 

Traceback (most recent call last):
  File "sparqlgraphviz.py", line 5, in <module>
    from rdflib.plugins.sparql.parser import parseQuery
  File "/Users/kerrien/opt/miniconda3/envs/sparqlgpviz/lib/python3.7/site-packages/rdflib/plugins/sparql/__init__.py", line 35, in <module>
    from . import parser
  File "/Users/kerrien/opt/miniconda3/envs/sparqlgpviz/lib/python3.7/site-packages/rdflib/plugins/sparql/parser.py", line 182, in <module>
    Param('prefix', PN_PREFIX)) + Suppress(':').leaveWhitespace()
  File "/Users/kerrien/opt/miniconda3/envs/sparqlgpviz/lib/python3.7/site-packages/rdflib/plugins/sparql/parserutils.py", line 113, in __init__
    self.name = name
AttributeError: can't set attribute

Any help appreciated ;) Cheers Samuel