ó
|
W\¬Qc @ s, d Z d Z d d d d d d g Z d Z d d
|
l m Z d d l m Z e d e d e d e d e d d d d d d d d Z e e e e d d d d d e d
|
Z e e e e d d d d d e d
|
Z e d d d d d d Z d d d d d d d d Z d d d d d d d d Z d S( sÈ JSON (JavaScript Object Notation) <http://json.org> is a subset of
|
JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data
|
interchange format.
|
|
:mod:`json` exposes an API familiar to users of the standard library
|
:mod:`marshal` and :mod:`pickle` modules. It is the externally maintained
|
version of the :mod:`json` library contained in Python 2.6, but maintains
|
compatibility with Python 2.4 and Python 2.5 and (currently) has
|
significant performance advantages, even without using the optional C
|
extension for speedups.
|
|
Encoding basic Python object hierarchies::
|
|
>>> import json
|
>>> json.dumps(['foo', {'bar': ('baz', None, 1.0, 2)}])
|
'["foo", {"bar": ["baz", null, 1.0, 2]}]'
|
>>> print json.dumps("\"foo\bar")
|
"\"foo\bar"
|
>>> print json.dumps(u'\u1234')
|
"\u1234"
|
>>> print json.dumps('\\')
|
"\\"
|
>>> print json.dumps({"c": 0, "b": 0, "a": 0}, sort_keys=True)
|
{"a": 0, "b": 0, "c": 0}
|
>>> from StringIO import StringIO
|
>>> io = StringIO()
|
>>> json.dump(['streaming API'], io)
|
>>> io.getvalue()
|
'["streaming API"]'
|
|
Compact encoding::
|
|
>>> import json
|
>>> json.dumps([1,2,3,{'4': 5, '6': 7}], sort_keys=True, separators=(',',':'))
|
'[1,2,3,{"4":5,"6":7}]'
|
|
Pretty printing::
|
|
>>> import json
|
>>> print json.dumps({'4': 5, '6': 7}, sort_keys=True,
|
... indent=4, separators=(',', ': '))
|
{
|
"4": 5,
|
"6": 7
|
}
|
|
Decoding JSON::
|
|
>>> import json
|
>>> obj = [u'foo', {u'bar': [u'baz', None, 1.0, 2]}]
|
>>> json.loads('["foo", {"bar":["baz", null, 1.0, 2]}]') == obj
|
True
|
>>> json.loads('"\\"foo\\bar"') == u'"foo\x08ar'
|
True
|
>>> from StringIO import StringIO
|
>>> io = StringIO('["streaming API"]')
|
>>> json.load(io)[0] == 'streaming API'
|
True
|
|
Specializing JSON object decoding::
|
|
>>> import json
|
>>> def as_complex(dct):
|
... if '__complex__' in dct:
|
... return complex(dct['real'], dct['imag'])
|
... return dct
|
...
|
>>> json.loads('{"__complex__": true, "real": 1, "imag": 2}',
|
... object_hook=as_complex)
|
(1+2j)
|
>>> from decimal import Decimal
|
>>> json.loads('1.1', parse_float=Decimal) == Decimal('1.1')
|
True
|
|
Specializing JSON object encoding::
|
|
>>> import json
|
>>> def encode_complex(obj):
|
... if isinstance(obj, complex):
|
... return [obj.real, obj.imag]
|
... raise TypeError(repr(o) + " is not JSON serializable")
|
...
|
>>> json.dumps(2 + 1j, default=encode_complex)
|
'[2.0, 1.0]'
|
>>> json.JSONEncoder(default=encode_complex).encode(2 + 1j)
|
'[2.0, 1.0]'
|
>>> ''.join(json.JSONEncoder(default=encode_complex).iterencode(2 + 1j))
|
'[2.0, 1.0]'
|
|
|
Using json.tool from the shell to validate and pretty-print::
|
|
$ echo '{"json":"obj"}' | python -m json.tool
|
{
|
"json": "obj"
|
}
|
$ echo '{ 1.2:3.4}' | python -m json.tool
|
Expecting property name enclosed in double quotes: line 1 column 3 (char 2)
|
s 2.0.9t dumpt dumpst loadt loadst JSONDecodert JSONEncoders Bob Ippolito <bob@redivi.com>i ( R ( R t skipkeyst ensure_asciit check_circulart allow_nant indentt
|
separatorst encodings utf-8t defaultc K s÷ | ru | ru | ru | ru | d k ru | d k ru | d k ru | d k ru |
|
d k ru | ru | ru t j | } n` | d k r t } n | d | d | d | d | d | d | d | d |
|
d
|
| | j | } x | D] } | j | qÜ Wd S( sÒ Serialize ``obj`` as a JSON formatted stream to ``fp`` (a
|
``.write()``-supporting file-like object).
|
|
If ``skipkeys`` is true then ``dict`` keys that are not basic types
|
(``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``)
|
will be skipped instead of raising a ``TypeError``.
|
|
If ``ensure_ascii`` is true (the default), all non-ASCII characters in the
|
output are escaped with ``\uXXXX`` sequences, and the result is a ``str``
|
instance consisting of ASCII characters only. If ``ensure_ascii`` is
|
``False``, some chunks written to ``fp`` may be ``unicode`` instances.
|
This usually happens because the input contains unicode strings or the
|
``encoding`` parameter is used. Unless ``fp.write()`` explicitly
|
understands ``unicode`` (as in ``codecs.getwriter``) this is likely to
|
cause an error.
|
|
If ``check_circular`` is false, then the circular reference check
|
for container types will be skipped and a circular reference will
|
result in an ``OverflowError`` (or worse).
|
|
If ``allow_nan`` is false, then it will be a ``ValueError`` to
|
serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``)
|
in strict compliance of the JSON specification, instead of using the
|
JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
|
|
If ``indent`` is a non-negative integer, then JSON array elements and
|
object members will be pretty-printed with that indent level. An indent
|
level of 0 will only insert newlines. ``None`` is the most compact
|
representation. Since the default item separator is ``', '``, the
|
output might include trailing whitespace when ``indent`` is specified.
|
You can use ``separators=(',', ': ')`` to avoid this.
|
|
If ``separators`` is an ``(item_separator, dict_separator)`` tuple
|
then it will be used instead of the default ``(', ', ': ')`` separators.
|
``(',', ':')`` is the most compact JSON representation.
|
|
``encoding`` is the character encoding for str instances, default is UTF-8.
|
|
``default(obj)`` is a function that should return a serializable version
|
of obj or raise TypeError. The default simply raises TypeError.
|
|
If *sort_keys* is ``True`` (default: ``False``), then the output of
|
dictionaries will be sorted by key.
|
|
To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
|
``.default()`` method to serialize additional types), specify it with
|
the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
|
|
s utf-8R R R R R
|
R R R t sort_keysN( t Nonet _default_encodert
|
iterencodeR t write( t objt fpR R R R t clsR
|
R R R R t kwt iterablet chunk( ( sU /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/json/__init__.pyR z s 5 $& c K sÎ | rp | rp | rp | rp | d k rp | d k rp | d k rp | d k rp | d k rp |
|
rp | rp t j | S| d k r
t } n | d | d | d | d | d | d | d | d | d
|
|
|
| j | S( s Serialize ``obj`` to a JSON formatted ``str``.
|
|
If ``skipkeys`` is false then ``dict`` keys that are not basic types
|
(``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``)
|
will be skipped instead of raising a ``TypeError``.
|
|
If ``ensure_ascii`` is false, all non-ASCII characters are not escaped, and
|
the return value may be a ``unicode`` instance. See ``dump`` for details.
|
|
If ``check_circular`` is false, then the circular reference check
|
for container types will be skipped and a circular reference will
|
result in an ``OverflowError`` (or worse).
|
|
If ``allow_nan`` is false, then it will be a ``ValueError`` to
|
serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in
|
strict compliance of the JSON specification, instead of using the
|
JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
|
|
If ``indent`` is a non-negative integer, then JSON array elements and
|
object members will be pretty-printed with that indent level. An indent
|
level of 0 will only insert newlines. ``None`` is the most compact
|
representation. Since the default item separator is ``', '``, the
|
output might include trailing whitespace when ``indent`` is specified.
|
You can use ``separators=(',', ': ')`` to avoid this.
|
|
If ``separators`` is an ``(item_separator, dict_separator)`` tuple
|
then it will be used instead of the default ``(', ', ': ')`` separators.
|
``(',', ':')`` is the most compact JSON representation.
|
|
``encoding`` is the character encoding for str instances, default is UTF-8.
|
|
``default(obj)`` is a function that should return a serializable version
|
of obj or raise TypeError. The default simply raises TypeError.
|
|
If *sort_keys* is ``True`` (default: ``False``), then the output of
|
dictionaries will be sorted by key.
|
|
To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
|
``.default()`` method to serialize additional types), specify it with
|
the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
|
|
s utf-8R R R R R
|
R R R R N( R R t encodeR ( R R R R R R R
|
R R R R R ( ( sU /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/json/__init__.pyR Á s . $& t object_hookt object_pairs_hookc K s= t | j d | d | d | d | d | d | d | | S( s¡ Deserialize ``fp`` (a ``.read()``-supporting file-like object containing
|
a JSON document) to a Python object.
|
|
If the contents of ``fp`` is encoded with an ASCII based encoding other
|
than utf-8 (e.g. latin-1), then an appropriate ``encoding`` name must
|
be specified. Encodings that are not ASCII based (such as UCS-2) are
|
not allowed, and should be wrapped with
|
``codecs.getreader(fp)(encoding)``, or simply decoded to a ``unicode``
|
object and passed to ``loads()``
|
|
``object_hook`` is an optional function that will be called with the
|
result of any object literal decode (a ``dict``). The return value of
|
``object_hook`` will be used instead of the ``dict``. This feature
|
can be used to implement custom decoders (e.g. JSON-RPC class hinting).
|
|
``object_pairs_hook`` is an optional function that will be called with the
|
result of any object literal 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.
|
|
To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
|
kwarg; otherwise ``JSONDecoder`` is used.
|
|
R R R t parse_floatt parse_intt parse_constantR ( R t read( R R R R R R R R R ( ( sU /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/json/__init__.pyR s
|
c K s | d k rh | d k rh | d k rh | d k rh | d k rh | d k rh | d k rh | rh t j | S| d k r} t } n | d k r | | d <n | d k r¯ | | d <n | d k rÈ | | d <n | d k rá | | d <n | d k rú | | d <n | d | | j | S( s Deserialize ``s`` (a ``str`` or ``unicode`` instance containing a JSON
|
document) to a Python object.
|
|
If ``s`` is a ``str`` instance and is encoded with an ASCII based encoding
|
other than utf-8 (e.g. latin-1) then an appropriate ``encoding`` name
|
must be specified. Encodings that are not ASCII based (such as UCS-2)
|
are not allowed and should be decoded to ``unicode`` first.
|
|
``object_hook`` is an optional function that will be called with the
|
result of any object literal decode (a ``dict``). The return value of
|
``object_hook`` will be used instead of the ``dict``. This feature
|
can be used to implement custom decoders (e.g. JSON-RPC class hinting).
|
|
``object_pairs_hook`` is an optional function that will be called with the
|
result of any object literal 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
|
for JSON floats (e.g. decimal.Decimal).
|
|
``parse_int``, if specified, will be called with the string
|
of every JSON int to be decoded. By default this is equivalent to
|
int(num_str). This can be used to use another datatype or parser
|
for JSON integers (e.g. float).
|
|
``parse_constant``, if specified, will be called with one of the
|
following strings: -Infinity, Infinity, NaN, null, true, false.
|
This can be used to raise an exception if invalid JSON numbers
|
are encountered.
|
|
To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
|
kwarg; otherwise ``JSONDecoder`` is used.
|
|
R R R R R R N( R t _default_decodert decodeR ( t sR R R R R R R R ( ( sU /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/json/__init__.pyR % s" *$ N( t __doc__t __version__t __all__t
|
__author__t decoderR t encoderR t Falset TrueR R R R R R R ( ( ( sU /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/json/__init__.pyt <module>c s6 E : #
|
