Adding some docs for bnode_context in N-Quads (#980)

- Also, writing out BNode reference to avoid Sphinx warning
- Deleting NTParser __init__ since it doesn't do anything

3 files changed, 16 insertions, 6 deletions

diff --git a/rdflib/plugins/parsers/nquads.py b/rdflib/plugins/parsers/nquads.py
index 0053ccab..a3bfbc6e 100644
--- a/rdflib/plugins/parsers/nquads.py
+++ b/rdflib/plugins/parsers/nquads.py
@@ -41,7 +41,17 @@ __all__ = ["NQuadsParser"]
 
 class NQuadsParser(NTriplesParser):
     def parse(self, inputsource, sink, bnode_context=None, **kwargs):
-        """Parse f as an N-Triples file."""
+        """
+        Parse inputsource as an N-Quads file.
+
+        :type inputsource: `rdflib.parser.InputSource`
+        :param inputsource: the source of N-Quads-formatted data
+        :type sink: `rdflib.graph.Graph`
+        :param sink: where to send parsed triples
+        :type bnode_context: `dict`, optional
+        :param bnode_context: a dict mapping blank node identifiers to `~rdflib.term.BNode` instances.
+                              See `.NTriplesParser.parse`
+        """
         assert sink.store.context_aware, (
             "NQuadsParser must be given" " a context aware store."
         )
diff --git a/rdflib/plugins/parsers/nt.py b/rdflib/plugins/parsers/nt.py
index b2ec445d..c37a1aa0 100644
--- a/rdflib/plugins/parsers/nt.py
+++ b/rdflib/plugins/parsers/nt.py
@@ -17,9 +17,6 @@ class NTParser(Parser):
 
     See http://www.w3.org/TR/rdf-testcases/#ntriples"""
 
-    def __init__(self):
-        super(NTParser, self).__init__()
-
     def parse(self, source, sink, **kwargs):
         '''
         Parse the NT format
diff --git a/rdflib/plugins/parsers/ntriples.py b/rdflib/plugins/parsers/ntriples.py
index 2e83204c..33a4a4e6 100644
--- a/rdflib/plugins/parsers/ntriples.py
+++ b/rdflib/plugins/parsers/ntriples.py
@@ -142,10 +142,13 @@ class NTriplesParser(object):
         """
         Parse f as an N-Triples file.
 
+        :type f: :term:`file object`
         :param f: the N-Triples source
+        :type bnode_context: `dict`, optional
         :param bnode_context: a dict mapping blank node identifiers (e.g., ``a`` in ``_:a``)
-                              to `.BNode` instances. An empty dict can be passed in to
-                              define a distinct context for a given call to `parse`.
+                              to `~rdflib.term.BNode` instances. An empty dict can be
+                              passed in to define a distinct context for a given call to
+                              `parse`.
         """
         if not hasattr(f, "read"):
             raise ParseError("Item to parse must be a file-like object.")