author | Sverre Rabbelier <srabbelier@gmail.com> |
Thu, 05 Feb 2009 23:46:39 +0000 | |
changeset 1228 | b24796279fb9 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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""" |
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Implementation of JSONEncoder |
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""" |
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import re |
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try: |
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from django.utils.simplejson._speedups import encode_basestring_ascii as c_encode_basestring_ascii |
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except ImportError: |
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pass |
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ESCAPE = re.compile(r'[\x00-\x1f\\"\b\f\n\r\t]') |
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ESCAPE_ASCII = re.compile(r'([\\"]|[^\ -~])') |
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HAS_UTF8 = re.compile(r'[\x80-\xff]') |
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ESCAPE_DCT = { |
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'\\': '\\\\', |
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'"': '\\"', |
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'\b': '\\b', |
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'\f': '\\f', |
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'\n': '\\n', |
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'\r': '\\r', |
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'\t': '\\t', |
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} |
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for i in range(0x20): |
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ESCAPE_DCT.setdefault(chr(i), '\\u%04x' % (i,)) |
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# Assume this produces an infinity on all machines (probably not guaranteed) |
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INFINITY = float('1e66666') |
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FLOAT_REPR = repr |
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|
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def floatstr(o, allow_nan=True): |
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# Check for specials. Note that this type of test is processor- and/or |
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# platform-specific, so do tests which don't depend on the internals. |
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|
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if o != o: |
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text = 'NaN' |
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elif o == INFINITY: |
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text = 'Infinity' |
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elif o == -INFINITY: |
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text = '-Infinity' |
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else: |
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return FLOAT_REPR(o) |
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|
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if not allow_nan: |
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raise ValueError("Out of range float values are not JSON compliant: %r" |
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% (o,)) |
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|
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return text |
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def encode_basestring(s): |
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""" |
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Return a JSON representation of a Python string |
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""" |
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def replace(match): |
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return ESCAPE_DCT[match.group(0)] |
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return '"' + ESCAPE.sub(replace, s) + '"' |
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def py_encode_basestring_ascii(s): |
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if isinstance(s, str) and HAS_UTF8.search(s) is not None: |
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s = s.decode('utf-8') |
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def replace(match): |
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s = match.group(0) |
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try: |
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return ESCAPE_DCT[s] |
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except KeyError: |
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n = ord(s) |
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if n < 0x10000: |
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return '\\u%04x' % (n,) |
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else: |
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# surrogate pair |
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n -= 0x10000 |
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s1 = 0xd800 | ((n >> 10) & 0x3ff) |
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s2 = 0xdc00 | (n & 0x3ff) |
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return '\\u%04x\\u%04x' % (s1, s2) |
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return '"' + str(ESCAPE_ASCII.sub(replace, s)) + '"' |
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try: |
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encode_basestring_ascii = c_encode_basestring_ascii |
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except NameError: |
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encode_basestring_ascii = py_encode_basestring_ascii |
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|
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|
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class JSONEncoder(object): |
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""" |
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Extensible JSON <http://json.org> encoder for Python data structures. |
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|
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Supports the following objects and types by default: |
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|
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91 |
+-------------------+---------------+ |
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92 |
| Python | JSON | |
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93 |
+===================+===============+ |
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| dict | object | |
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95 |
+-------------------+---------------+ |
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96 |
| list, tuple | array | |
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97 |
+-------------------+---------------+ |
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| str, unicode | string | |
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99 |
+-------------------+---------------+ |
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| int, long, float | number | |
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101 |
+-------------------+---------------+ |
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102 |
| True | true | |
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103 |
+-------------------+---------------+ |
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104 |
| False | false | |
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105 |
+-------------------+---------------+ |
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106 |
| None | null | |
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107 |
+-------------------+---------------+ |
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108 |
|
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To extend this to recognize other objects, subclass and implement a |
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``.default()`` method with another method that returns a serializable |
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object for ``o`` if possible, otherwise it should call the superclass |
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implementation (to raise ``TypeError``). |
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113 |
""" |
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114 |
__all__ = ['__init__', 'default', 'encode', 'iterencode'] |
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115 |
item_separator = ', ' |
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key_separator = ': ' |
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117 |
def __init__(self, skipkeys=False, ensure_ascii=True, |
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check_circular=True, allow_nan=True, sort_keys=False, |
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indent=None, separators=None, encoding='utf-8', default=None): |
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120 |
""" |
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Constructor for JSONEncoder, with sensible defaults. |
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122 |
|
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123 |
If skipkeys is False, then it is a TypeError to attempt |
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124 |
encoding of keys that are not str, int, long, float or None. If |
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125 |
skipkeys is True, such items are simply skipped. |
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126 |
|
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127 |
If ensure_ascii is True, the output is guaranteed to be str |
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128 |
objects with all incoming unicode characters escaped. If |
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129 |
ensure_ascii is false, the output will be unicode object. |
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130 |
|
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131 |
If check_circular is True, then lists, dicts, and custom encoded |
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132 |
objects will be checked for circular references during encoding to |
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133 |
prevent an infinite recursion (which would cause an OverflowError). |
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134 |
Otherwise, no such check takes place. |
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135 |
|
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136 |
If allow_nan is True, then NaN, Infinity, and -Infinity will be |
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137 |
encoded as such. This behavior is not JSON specification compliant, |
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138 |
but is consistent with most JavaScript based encoders and decoders. |
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139 |
Otherwise, it will be a ValueError to encode such floats. |
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140 |
|
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141 |
If sort_keys is True, then the output of dictionaries will be |
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142 |
sorted by key; this is useful for regression tests to ensure |
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143 |
that JSON serializations can be compared on a day-to-day basis. |
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144 |
|
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145 |
If indent is a non-negative integer, then JSON array |
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146 |
elements and object members will be pretty-printed with that |
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147 |
indent level. An indent level of 0 will only insert newlines. |
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148 |
None is the most compact representation. |
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149 |
|
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150 |
If specified, separators should be a (item_separator, key_separator) |
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151 |
tuple. The default is (', ', ': '). To get the most compact JSON |
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152 |
representation you should specify (',', ':') to eliminate whitespace. |
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153 |
|
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154 |
If specified, default is a function that gets called for objects |
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155 |
that can't otherwise be serialized. It should return a JSON encodable |
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156 |
version of the object or raise a ``TypeError``. |
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157 |
|
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158 |
If encoding is not None, then all input strings will be |
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159 |
transformed into unicode using that encoding prior to JSON-encoding. |
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160 |
The default is UTF-8. |
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161 |
""" |
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162 |
|
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163 |
self.skipkeys = skipkeys |
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164 |
self.ensure_ascii = ensure_ascii |
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165 |
self.check_circular = check_circular |
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166 |
self.allow_nan = allow_nan |
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167 |
self.sort_keys = sort_keys |
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168 |
self.indent = indent |
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169 |
self.current_indent_level = 0 |
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170 |
if separators is not None: |
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171 |
self.item_separator, self.key_separator = separators |
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172 |
if default is not None: |
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173 |
self.default = default |
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174 |
self.encoding = encoding |
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175 |
|
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176 |
def _newline_indent(self): |
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177 |
return '\n' + (' ' * (self.indent * self.current_indent_level)) |
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178 |
|
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179 |
def _iterencode_list(self, lst, markers=None): |
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180 |
if not lst: |
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181 |
yield '[]' |
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182 |
return |
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183 |
if markers is not None: |
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184 |
markerid = id(lst) |
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185 |
if markerid in markers: |
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186 |
raise ValueError("Circular reference detected") |
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187 |
markers[markerid] = lst |
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188 |
yield '[' |
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189 |
if self.indent is not None: |
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190 |
self.current_indent_level += 1 |
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191 |
newline_indent = self._newline_indent() |
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192 |
separator = self.item_separator + newline_indent |
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193 |
yield newline_indent |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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|
194 |
else: |
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195 |
newline_indent = None |
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196 |
separator = self.item_separator |
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197 |
first = True |
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198 |
for value in lst: |
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199 |
if first: |
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200 |
first = False |
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201 |
else: |
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202 |
yield separator |
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203 |
for chunk in self._iterencode(value, markers): |
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204 |
yield chunk |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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205 |
if newline_indent is not None: |
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|
206 |
self.current_indent_level -= 1 |
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207 |
yield self._newline_indent() |
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208 |
yield ']' |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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|
209 |
if markers is not None: |
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210 |
del markers[markerid] |
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211 |
|
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212 |
def _iterencode_dict(self, dct, markers=None): |
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213 |
if not dct: |
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214 |
yield '{}' |
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215 |
return |
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216 |
if markers is not None: |
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217 |
markerid = id(dct) |
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218 |
if markerid in markers: |
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219 |
raise ValueError("Circular reference detected") |
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220 |
markers[markerid] = dct |
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221 |
yield '{' |
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222 |
key_separator = self.key_separator |
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223 |
if self.indent is not None: |
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224 |
self.current_indent_level += 1 |
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225 |
newline_indent = self._newline_indent() |
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226 |
item_separator = self.item_separator + newline_indent |
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227 |
yield newline_indent |
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228 |
else: |
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|
229 |
newline_indent = None |
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|
230 |
item_separator = self.item_separator |
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|
231 |
first = True |
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|
232 |
if self.ensure_ascii: |
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|
233 |
encoder = encode_basestring_ascii |
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|
234 |
else: |
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changeset
|
235 |
encoder = encode_basestring |
03e267d67478
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|
236 |
allow_nan = self.allow_nan |
03e267d67478
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|
237 |
if self.sort_keys: |
03e267d67478
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|
238 |
keys = dct.keys() |
03e267d67478
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|
239 |
keys.sort() |
03e267d67478
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|
240 |
items = [(k, dct[k]) for k in keys] |
03e267d67478
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changeset
|
241 |
else: |
03e267d67478
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changeset
|
242 |
items = dct.iteritems() |
323
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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54
diff
changeset
|
243 |
_encoding = self.encoding |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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54
diff
changeset
|
244 |
_do_decode = (_encoding is not None |
ff1a9aa48cfd
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54
diff
changeset
|
245 |
and not (_encoding == 'utf-8')) |
54
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|
246 |
for key, value in items: |
323
ff1a9aa48cfd
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diff
changeset
|
247 |
if isinstance(key, str): |
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diff
changeset
|
248 |
if _do_decode: |
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changeset
|
249 |
key = key.decode(_encoding) |
ff1a9aa48cfd
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diff
changeset
|
250 |
elif isinstance(key, basestring): |
54
03e267d67478
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|
251 |
pass |
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|
252 |
# JavaScript is weakly typed for these, so it makes sense to |
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|
253 |
# also allow them. Many encoders seem to do something like this. |
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|
254 |
elif isinstance(key, float): |
03e267d67478
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|
255 |
key = floatstr(key, allow_nan) |
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parents:
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|
256 |
elif isinstance(key, (int, long)): |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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|
257 |
key = str(key) |
03e267d67478
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parents:
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changeset
|
258 |
elif key is True: |
03e267d67478
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|
259 |
key = 'true' |
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|
260 |
elif key is False: |
03e267d67478
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|
261 |
key = 'false' |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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changeset
|
262 |
elif key is None: |
03e267d67478
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parents:
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|
263 |
key = 'null' |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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changeset
|
264 |
elif self.skipkeys: |
03e267d67478
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parents:
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|
265 |
continue |
03e267d67478
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changeset
|
266 |
else: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
267 |
raise TypeError("key %r is not a string" % (key,)) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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changeset
|
268 |
if first: |
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changeset
|
269 |
first = False |
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changeset
|
270 |
else: |
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parents:
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changeset
|
271 |
yield item_separator |
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|
272 |
yield encoder(key) |
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|
273 |
yield key_separator |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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|
274 |
for chunk in self._iterencode(value, markers): |
03e267d67478
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|
275 |
yield chunk |
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parents:
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changeset
|
276 |
if newline_indent is not None: |
03e267d67478
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|
277 |
self.current_indent_level -= 1 |
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parents:
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|
278 |
yield self._newline_indent() |
03e267d67478
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|
279 |
yield '}' |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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changeset
|
280 |
if markers is not None: |
03e267d67478
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changeset
|
281 |
del markers[markerid] |
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changeset
|
282 |
|
03e267d67478
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parents:
diff
changeset
|
283 |
def _iterencode(self, o, markers=None): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
284 |
if isinstance(o, basestring): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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changeset
|
285 |
if self.ensure_ascii: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
286 |
encoder = encode_basestring_ascii |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
287 |
else: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
288 |
encoder = encode_basestring |
323
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
289 |
_encoding = self.encoding |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
290 |
if (_encoding is not None and isinstance(o, str) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
291 |
and not (_encoding == 'utf-8')): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
292 |
o = o.decode(_encoding) |
54
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
293 |
yield encoder(o) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
294 |
elif o is None: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
295 |
yield 'null' |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
296 |
elif o is True: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
297 |
yield 'true' |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
298 |
elif o is False: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
diff
changeset
|
299 |
yield 'false' |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
300 |
elif isinstance(o, (int, long)): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
301 |
yield str(o) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
302 |
elif isinstance(o, float): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
303 |
yield floatstr(o, self.allow_nan) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
304 |
elif isinstance(o, (list, tuple)): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
305 |
for chunk in self._iterencode_list(o, markers): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
306 |
yield chunk |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
307 |
elif isinstance(o, dict): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
308 |
for chunk in self._iterencode_dict(o, markers): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
309 |
yield chunk |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
310 |
else: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
311 |
if markers is not None: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
312 |
markerid = id(o) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
313 |
if markerid in markers: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
314 |
raise ValueError("Circular reference detected") |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
315 |
markers[markerid] = o |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
316 |
for chunk in self._iterencode_default(o, markers): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
317 |
yield chunk |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
318 |
if markers is not None: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
319 |
del markers[markerid] |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
320 |
|
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
321 |
def _iterencode_default(self, o, markers=None): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
322 |
newobj = self.default(o) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
323 |
return self._iterencode(newobj, markers) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
324 |
|
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
325 |
def default(self, o): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
326 |
""" |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
327 |
Implement this method in a subclass such that it returns |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
328 |
a serializable object for ``o``, or calls the base implementation |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
329 |
(to raise a ``TypeError``). |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
330 |
|
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
331 |
For example, to support arbitrary iterators, you could |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
332 |
implement default like this:: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
333 |
|
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
334 |
def default(self, o): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
335 |
try: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
336 |
iterable = iter(o) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
337 |
except TypeError: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
338 |
pass |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
339 |
else: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
340 |
return list(iterable) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
341 |
return JSONEncoder.default(self, o) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
342 |
""" |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
343 |
raise TypeError("%r is not JSON serializable" % (o,)) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
344 |
|
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
345 |
def encode(self, o): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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""" |
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Return a JSON string representation of a Python data structure. |
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|
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>>> JSONEncoder().encode({"foo": ["bar", "baz"]}) |
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'{"foo": ["bar", "baz"]}' |
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""" |
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# This is for extremely simple cases and benchmarks. |
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if isinstance(o, basestring): |
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if isinstance(o, str): |
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_encoding = self.encoding |
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if (_encoding is not None |
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and not (_encoding == 'utf-8')): |
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o = o.decode(_encoding) |
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if self.ensure_ascii: |
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return encode_basestring_ascii(o) |
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else: |
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return encode_basestring(o) |
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# This doesn't pass the iterator directly to ''.join() because the |
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# exceptions aren't as detailed. The list call should be roughly |
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# equivalent to the PySequence_Fast that ''.join() would do. |
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chunks = list(self.iterencode(o)) |
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return ''.join(chunks) |
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|
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def iterencode(self, o): |
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""" |
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Encode the given object and yield each string |
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representation as available. |
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|
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For example:: |
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|
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for chunk in JSONEncoder().iterencode(bigobject): |
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mysocket.write(chunk) |
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""" |
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if self.check_circular: |
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markers = {} |
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381 |
else: |
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markers = None |
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return self._iterencode(o, markers) |
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384 |
|
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__all__ = ['JSONEncoder'] |