diff env/lib/python3.7/site-packages/rdflib/__init__.py @ 0:26e78fe6e8c4 draft

"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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+++ b/env/lib/python3.7/site-packages/rdflib/__init__.py	Sat May 02 07:14:21 2020 -0400
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+"""A pure Python package providing the core RDF constructs.
+
+The packages is intended to provide the core RDF types and interfaces
+for working with RDF. The package defines a plugin interface for
+parsers, stores, and serializers that other packages can use to
+implement parsers, stores, and serializers that will plug into the
+rdflib package.
+
+The primary interface `rdflib` exposes to work with RDF is
+`rdflib.graph.Graph`.
+
+A tiny example:
+
+    >>> from rdflib import Graph, URIRef, Literal
+
+    >>> g = Graph()
+    >>> result = g.parse("http://www.w3.org/2000/10/swap/test/meet/blue.rdf")
+
+    >>> print("graph has %s statements." % len(g))
+    graph has 4 statements.
+    >>>
+    >>> for s, p, o in g:
+    ...     if (s, p, o) not in g:
+    ...         raise Exception("It better be!")
+
+    >>> s = g.serialize(format='nt')
+    >>>
+    >>> sorted(g) == [
+    ...  (URIRef(u'http://meetings.example.com/cal#m1'),
+    ...   URIRef(u'http://www.example.org/meeting_organization#homePage'),
+    ...   URIRef(u'http://meetings.example.com/m1/hp')),
+    ...  (URIRef(u'http://www.example.org/people#fred'),
+    ...   URIRef(u'http://www.example.org/meeting_organization#attending'),
+    ...   URIRef(u'http://meetings.example.com/cal#m1')),
+    ...  (URIRef(u'http://www.example.org/people#fred'),
+    ...   URIRef(u'http://www.example.org/personal_details#GivenName'),
+    ...   Literal(u'Fred')),
+    ...  (URIRef(u'http://www.example.org/people#fred'),
+    ...   URIRef(u'http://www.example.org/personal_details#hasEmail'),
+    ...   URIRef(u'mailto:fred@example.com'))
+    ... ]
+    True
+
+"""
+__docformat__ = "restructuredtext en"
+
+# The format of the __version__ line is matched by a regex in setup.py
+__version__ = "4.2.2"
+__date__ = "2017/01/29"
+
+__all__ = [
+    'URIRef',
+    'BNode',
+    'Literal',
+    'Variable',
+
+    'Namespace',
+
+    'Dataset',
+    'Graph',
+    'ConjunctiveGraph',
+
+    'RDF',
+    'RDFS',
+    'OWL',
+    'XSD',
+
+    'util',
+]
+
+import sys
+assert sys.version_info >= (2, 5, 0), "rdflib requires Python 2.5 or higher"
+
+import logging
+_interactive_mode = False
+try:
+    import __main__
+    if not hasattr(__main__, '__file__') and sys.stdout.isatty():
+        # show log messages in interactive mode
+        _interactive_mode = True
+        logging.basicConfig(level=logging.INFO)
+    del __main__
+except ImportError:
+    #Main already imported from elsewhere
+    import warnings
+    warnings.warn('__main__ already imported', ImportWarning)
+    del warnings
+
+logger = logging.getLogger(__name__)
+if _interactive_mode:
+    logger.info("RDFLib Version: %s" % __version__)
+else:
+    logger.debug("RDFLib Version: %s" % __version__)
+del _interactive_mode
+del sys
+
+
+try:
+    chr(0x10FFFF)
+except ValueError:
+    import warnings
+    warnings.warn(
+        'You are using a narrow Python build!\n'
+        'This means that your Python does not properly support chars > 16bit.\n'
+        'On your system chars like c=u"\\U0010FFFF" will have a len(c)==2.\n'
+        'As this can cause hard to debug problems with string processing\n'
+        '(slicing, regexp, ...) later on, we strongly advise to use a wide\n'
+        'Python build in production systems.',
+        ImportWarning)
+    del warnings
+
+
+NORMALIZE_LITERALS = True
+"""
+If True - Literals lexical forms are normalized when created.
+I.e. the lexical forms is parsed according to data-type, then the
+stored lexical form is the re-serialized value that was parsed.
+
+Illegal values for a datatype are simply kept.  The normalized keyword
+for Literal.__new__ can override this.
+
+For example:
+
+>>> from rdflib import Literal,XSD
+>>> Literal("01", datatype=XSD.int)
+rdflib.term.Literal(u'1', datatype=rdflib.term.URIRef(u'http://www.w3.org/2001/XMLSchema#integer'))
+
+This flag may be changed at any time, but will only affect literals
+created after that time, previously created literals will remain
+(un)normalized.
+
+"""
+
+
+DAWG_LITERAL_COLLATION = False
+"""
+DAWG_LITERAL_COLLATION determines how literals are ordered or compared
+to each other.
+
+In SPARQL, applying the >,<,>=,<= operators to literals of
+incompatible data-types is an error, i.e:
+
+Literal(2)>Literal('cake') is neither true nor false, but an error.
+
+This is a problem in PY3, where lists of Literals of incompatible
+types can no longer be sorted.
+
+Setting this flag to True gives you strict DAWG/SPARQL compliance,
+setting it to False will order Literals with incompatible datatypes by
+datatype URI
+
+In particular, this determines how the rich comparison operators for
+Literal work, eq, __neq__, __lt__, etc.
+"""
+
+from rdflib.term import (
+    URIRef, BNode, Literal, Variable)
+
+from rdflib.namespace import Namespace
+
+from rdflib.graph import Dataset, Graph, ConjunctiveGraph
+
+from rdflib.namespace import RDF, RDFS, OWL, XSD
+
+from rdflib import plugin
+from rdflib import query
+# tedious sop to flake8
+assert plugin
+assert query
+
+from rdflib import util