RDFLib 4.2.2

This is a bug-fix release, and the last release in the 4.X.X series.

Bug fixes:

• SPARQL bugs fixed:
  • Fix for filters in sub-queries
    #693
  • Fixed bind, initBindings and filter problems
    #294
    #555
    #580
    #586
    #601
    #615
    #617
    #619
    #630
    #653
    #686
    #688
    #692
  • Fixed unexpected None value in SPARQL-update
    #633
    #634
  • Fix sparql, group by and count of null values with optional
    #631
  • Fixed sparql sub-query and aggregation bugs
    #607
    #610
    #628
    #694
  • Fixed parsing Complex BGPs as triples
    #622
    #623
  • Fixed DISTINCT being ignored inside aggregate functions
    #404
    #611
    #678
  • Fix unicode encoding errors in sparql processor
    #446
    #599
  • Fixed SPARQL select nothing no longer returning a None row
    #554
    #592
  • Fixed aggregate operators COUNT and SAMPLE to ignore unbound / NULL values
    #564
    #563
    #567
    #568
  • Fix sparql relative uris
    #523
    #524
  • SPARQL can now compare xsd:date type as well, fixes #532
    #532
    #533
  • fix sparql path order on python3: "TypeError: unorderable types: SequencePath() < SequencePath()""
    #492
    #525
  • SPARQL parser now robust to spurious semicolon
    #381
    #528
  • Let paths be comparable against all nodes even in py3 (preparedQuery error)
    #545
    #552
  • Made behavior of initN in update and query more consistent
    #579
    #600
• SparqlStore:
  • SparqlStore now closes underlying urllib response body
    #638
    #683
  • SparqlStore injectPrefixes only modifies query if prefixes present and if adds a newline in between
    #521
    #522
• Fixes and tests for AuditableStore
  #537
  #557
• Trig bugs fixed:
  • trig export of multiple graphs assigns wrong prefixes to prefixedNames
    #679
  • Trig serialiser writing empty named graph name for default graph
    #433
  • Trig parser can creating multiple contexts for the default graph
    #432
  • Trig serialisation handling prefixes incorrectly
    #428
    #699
• Fixed Nquads parser handling of triples in default graph
  #535
  #536
• Fixed TypeError in Turtle serializer (unorderable types: DocumentFragment() > DocumentFragment())
  #613
  #648
  #666
  #676
• Fixed serialization and parsing of inf/nan
  #655
  #658
• Fixed RDFa parser from failing on time elements with child nodes
  #576
  #577
• Fix double reduction of \ escapes in from_n3
  #546
  #548
• Fixed handling of xsd:base64Binary
  #646
  #674
• Fixed Collection.setitem broken
  #604
  #605
• Fix ImportError when main already loaded
  #616
• Fixed broken top_level.txt file in distribution
  #571
  #572
  #573

Enhancements:

• Added support for Python 3.5+
  #526
• More aliases for common formats (nt, turtle)
  #701
• Improved RDF1.1 ntriples support
  #695
  #700
• Dependencies updated and improved compatibility with pyparsing, html5lib, SPARQLWrapper and elementtree
  #550
  #589
  #606
  #641
  #642
  #650
  #671
  #675
  #684
  #696
• Improved prefix for SPARQL namespace in XML serialization
  #493
  #588
• Performance improvements:
  • SPARQL Aggregation functions don't build up memory for each row
    #678
  • Collections now support += (iadd), fixes slow creation of large lists
    #609
    #612
    #691
  • SPARQL Optimisation to expand BGPs in a smarter way
    #547
• SPARQLStore improvements
  • improved SPARQLStore BNode customizability
    #511
    #512
    #513
    #603
  • Adding the option of using POST for long queries in SPARQLStore
    #672
    #673
  • Exposed the timeout of SPARQLWrapper
    #531
• SPARQL prepared query now carries the original (unparsed) parameters
  #565
• added .n3 methods for path objects
  #553
• Added support for xsd:gYear and xsd:gYearMonth
  #635
  #636
• Allow duplicates in rdf:List
  #223
  #690
• Improved slicing of Resource objects
  #529

Cleanups:

• cleanup: SPARQL Prologue and Query new style classes
  #566
• Reduce amount of warnings, especially closing opened file pointers
  #518
  #651
• Improved ntriples parsing exceptions to actually tell you what's wrong
  #640
  #643
• remove ancient and broken 2.3 support code.
  #680
  #681
• Logger output improved
  #662
• properly cite RGDA1
  #624
• Avoid class reference to imported function
  #574
  #578
• Use find_packages for package discovery.
  #590
• Prepared ClosedNamespace (and _RDFNamespace) to inherit from Namespace (5.0.0)
  #551
  #595
• Avoid verbose build logging
  #534
• (ultra petty) Remove an unused import
  #593

Testing improvements:

• updating deprecated testing syntax
  #697
• make test 375 more portable (use sys.executable rather than python)
  #664
  #668
• Removed outdated, skipped test for #130 that depended on content from the internet
  #256
• enable all warnings during travis nosetests
  #517
• travis updates
  #659
• travis also builds release branches
  #598

Doc improvements:

• Update list of builtin serialisers in docstring
  #621
• Update reference to "Emulating container types"
  #575
  #581
  #583
  #584
• docs: clarify the use of an identifier when persisting a triplestore
  #654
• DOC: unamed -> unnamed, typos
  #562