json.decoder

Implementation of JSONDecoder

Classes

JSONDecodeError

Subclass of ValueError with the following additional properties:

    msg: The unformatted error message
    doc: The JSON document being parsed
    pos: The start index of doc where parsing failed
    lineno: The line corresponding to pos
    colno: The column corresponding to pos

with_traceback(...)

  Exception.with_traceback(tb) --
      set self.__traceback__ to tb and return self.

args = <attribute 'args' of 'BaseException' objects>

JSONDecoder

Simple JSON <https://json.org> decoder

    Performs the following translations in decoding by default:

    +---------------+-------------------+
    | JSON          | Python            |
    +===============+===================+
    | object        | dict              |
    +---------------+-------------------+
    | array         | list              |
    +---------------+-------------------+
    | string        | str               |
    +---------------+-------------------+
    | number (int)  | int               |
    +---------------+-------------------+
    | number (real) | float             |
    +---------------+-------------------+
    | true          | True              |
    +---------------+-------------------+
    | false         | False             |
    +---------------+-------------------+
    | null          | None              |
    +---------------+-------------------+

    It also understands ``NaN``, ``Infinity``, and ``-Infinity`` as
    their corresponding ``float`` values, which is outside the JSON spec.

decode(self, s, _w=<built-in method match of re.Pattern object at 0x7f75e2e72a80>)

  Return the Python representation of ``s`` (a ``str`` instance
          containing a JSON document).

raw_decode(self, s, idx=0)

  Decode a JSON document from ``s`` (a ``str`` beginning with
          a JSON document) and return a 2-tuple of the Python
          representation and the index in ``s`` where the document ended.

          This can be used to decode a JSON document from a string that may
          have extraneous data at the end.

Functions

JSONArray

JSONArray(s_and_end, scan_once, _w=<built-in method match of re.Pattern object at 0x7f75e2e72a80>, _ws=' \t\n\r')

JSONObject

JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook, memo=None, _w=<built-in method match of re.Pattern object at 0x7f75e2e72a80>, _ws=' \t\n\r')

c_scanstring

scanstring(...)

  scanstring(string, end, strict=True) -> (string, end)

  Scan the string s for a JSON string. End is the index of the
  character in s after the quote that started the JSON string.
  Unescapes all valid JSON string escape sequences and raises ValueError
  on attempt to decode an invalid string. If strict is False then literal
  control characters are allowed in the string.

  Returns a tuple of the decoded string and the index of the character in s
  after the end quote.

py_scanstring

py_scanstring(s, end, strict=True, _b={'"': '"', '\\': '\\', '/': '/', 'b': '\x08', 'f': '\x0c', 'n': '\n', 'r': '\r', 't': '\t'}, _m=<built-in method match of re.Pattern object at 0x7f75e2dab790>)

  Scan the string s for a JSON string. End is the index of the
      character in s after the quote that started the JSON string.
      Unescapes all valid JSON string escape sequences and raises ValueError
      on attempt to decode an invalid string. If strict is False then literal
      control characters are allowed in the string.

      Returns a tuple of the decoded string and the index of the character in s
      after the end quote.

scanstring

scanstring(...)

  scanstring(string, end, strict=True) -> (string, end)

  Scan the string s for a JSON string. End is the index of the
  character in s after the quote that started the JSON string.
  Unescapes all valid JSON string escape sequences and raises ValueError
  on attempt to decode an invalid string. If strict is False then literal
  control characters are allowed in the string.

  Returns a tuple of the decoded string and the index of the character in s
  after the end quote.

Other members

BACKSLASH = {'"': '"', '\\': '\\', '/': '/', 'b': '\x08', 'f': '\x0c', 'n': '\n', 'r': '\r', 't': '\t'}

FLAGS = re.MULTILINE|re.DOTALL|re.VERBOSE

NaN = nan

NegInf = -inf

PosInf = inf

STRINGCHUNK = re.compile('(.*?)(["\\\\\\x00-\\x1f])', re.MULTILINE|re.DOTALL|re.VERBOSE)

WHITESPACE = re.compile('[ \\t\\n\\r]*', re.MULTILINE|re.DOTALL|re.VERBOSE)

WHITESPACE_STR = ' \t\n\r'

Modules

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