Function load

pattern/web/json/__init__.py:341–395

Deserialize ``fp`` (a ``.read()``-supporting file-like object containing a JSON document) to a Python object. *encoding* determines the encoding used to interpret any :class:`str` objects decoded by this instance (``'utf-8'`` by default). It has no effect when decoding :class:`unic

(fp, encoding=None, cls=None, object_hook=None, parse_float=None,
        parse_int=None, parse_constant=None, object_pairs_hook=None,
        use_decimal=False, namedtuple_as_object=True, tuple_as_array=True,
        **kw)

def load(fp, encoding=None, cls=None, object_hook=None, parse_float=None,
        parse_int=None, parse_constant=None, object_pairs_hook=None,
        use_decimal=False, namedtuple_as_object=True, tuple_as_array=True,
        **kw):
    """Deserialize ``fp`` (a ``.read()``-supporting file-like object containing
    a JSON document) to a Python object.

    *encoding* determines the encoding used to interpret any
    :class:`str` objects decoded by this instance (``'utf-8'`` by
    default).  It has no effect when decoding :class:`unicode` objects.

    Note that currently only encodings that are a superset of ASCII work,
    strings of other encodings should be passed in as :class:`unicode`.

    *object_hook*, if specified, will be called with the result of every
    JSON object decoded and its return value will be used in place of the
    given :class:`dict`.  This can be used to provide custom
    deserializations (e.g. to support JSON-RPC class hinting).

    *object_pairs_hook* is an optional function that will be called with
    the result of any object literal decode with an ordered list of pairs.
    The return value of *object_pairs_hook* will be used instead of the
    :class:`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, :func:`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. :class:`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. :class:`float`).

    *parse_constant*, if specified, will be called with one of the
    following strings: ``'-Infinity'``, ``'Infinity'``, ``'NaN'``.  This
    can be used to raise an exception if invalid JSON numbers are
    encountered.

    If *use_decimal* is true (default: ``False``) then it implies
    parse_float=decimal.Decimal for parity with ``dump``.

    To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
    kwarg.

    """
    return loads(fp.read(),
        encoding=encoding, cls=cls, object_hook=object_hook,
        parse_float=parse_float, parse_int=parse_int,
        parse_constant=parse_constant, object_pairs_hook=object_pairs_hook,
        use_decimal=use_decimal, **kw)


def loads(s, encoding=None, cls=None, object_hook=None, parse_float=None,