Recorded merge of revisions 85543 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r85543 | georg.brandl | 2010-10-15 19:03:02 +0200 (Fr, 15 Okt 2010) | 1 line

  #4785: document strict argument of JSONDecoder, plus add object_pairs_hook in the docstrings.
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1 files changed, 14 insertions, 0 deletions

diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py
index 73236ed4de..b9745f7884 100644
--- a/Lib/json/decoder.py
+++ b/Lib/json/decoder.py
@@ -310,6 +310,15 @@ class JSONDecoder(object):
         place of the given ``dict``.  This can be used to provide custom
         deserializations (e.g. to support JSON-RPC class hinting).
 
+        ``object_pairs_hook``, if specified will be called with the result of
+        every JSON object decoded with an ordered list of pairs.  The return
+        value of ``object_pairs_hook`` will be used instead of the ``dict``.
+        This feature can be used to implement custom decoders that rely on the
+        order that the key and value pairs are decoded (for example,
+        collections.OrderedDict will remember the order of insertion). If
+        ``object_hook`` is also defined, the ``object_pairs_hook`` takes
+        priority.
+
         ``parse_float``, if specified, will be called with the string
         of every JSON float to be decoded. By default this is equivalent to
         float(num_str). This can be used to use another datatype or parser
@@ -325,6 +334,11 @@ class JSONDecoder(object):
         This can be used to raise an exception if invalid JSON numbers
         are encountered.
 
+        If ``strict`` is false (true is the default), then control
+        characters will be allowed inside strings.  Control characters in
+        this context are those with character codes in the 0-31 range,
+        including ``'\\t'`` (tab), ``'\\n'``, ``'\\r'`` and ``'\\0'``.
+
         """
         self.encoding = encoding
         self.object_hook = object_hook