Connection pooling about sparqlwrapper

Good suggestion. But as urllib3 doesn't appear to support python2.5:

https://github.com/shazow/urllib3/blob/master/.travis.yml

we'll probably have to park it until SPARQLWrapper/RDFLib ceases support for Python 2.5.

(RDFLib's trove entry advertises explicit support for 2.5)

[indeyets]

Is there any timeline for this?

IIRC Gunnar asked around his circle of acquaintances who were also institutional users of Python about versions (preparatory to RDFLIb ceasing support for 2.4, not all that long ago) and felt that there was enough evidence of significant installations on 2.5 (there's still some use at CERN, I believe) that we should retain support for 2.5 at least for the duration of rdflib 4.X. That's my broad understanding, at least.

With that in mind - it's a decision for the SPARQLWrapper maintainers whether SPARQLWrapper supports all of the Python versions that RDFLib supports.

[wikier]

I'd be willing to upgrade to urllib3, but what Graham points is a quite important constraint.

I'll try to find time to provide backward compatible implementation of a connection pooling for python >= 2.7, but still usable on 2.5 too.

[jgeluk]

7 years later, still no connection pooling or keep-alive support for Python 3?

[eggplants]

Currently older python(<=3.6) has been dropped. So this feature can be introduced without support for python 2.7. See also: #198