Mercurial > cpython-lru_cache-weakref

annotate Lib/json/encoder.py @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents 78bad589f205
children ef8ea052bcc4
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1 """Implementation of JSONEncoder
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2 """
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3 import re
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4
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5 try:
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6 from _json import encode_basestring_ascii as c_encode_basestring_ascii
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7 except ImportError:
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8 c_encode_basestring_ascii = None
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9 try:
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10 from _json import make_encoder as c_make_encoder
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11 except ImportError:
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12 c_make_encoder = None
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13
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14 ESCAPE = re.compile(r'[\x00-\x1f\\"\b\f\n\r\t]')
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15 ESCAPE_ASCII = re.compile(r'([\\"]|[^\ -~])')
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16 HAS_UTF8 = re.compile(r'[\x80-\xff]')
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17 ESCAPE_DCT = {
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18 '\\': '\\\\',
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19 '"': '\\"',
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20 '\b': '\\b',
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21 '\f': '\\f',
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22 '\n': '\\n',
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23 '\r': '\\r',
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24 '\t': '\\t',
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25 }
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26 for i in range(0x20):
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27 ESCAPE_DCT.setdefault(chr(i), '\\u{0:04x}'.format(i))
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28 #ESCAPE_DCT.setdefault(chr(i), '\\u%04x' % (i,))
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29
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30 INFINITY = float('inf')
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31 FLOAT_REPR = repr
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32
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33 def encode_basestring(s):
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34 """Return a JSON representation of a Python string
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35
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36 """
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37 def replace(match):
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38 return ESCAPE_DCT[match.group(0)]
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39 return '"' + ESCAPE.sub(replace, s) + '"'
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40
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41
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42 def py_encode_basestring_ascii(s):
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43 """Return an ASCII-only JSON representation of a Python string
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44
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45 """
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46 if isinstance(s, str) and HAS_UTF8.search(s) is not None:
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47 s = s.decode('utf-8')
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48 def replace(match):
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49 s = match.group(0)
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50 try:
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51 return ESCAPE_DCT[s]
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52 except KeyError:
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53 n = ord(s)
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54 if n < 0x10000:
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55 return '\\u{0:04x}'.format(n)
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56 #return '\\u%04x' % (n,)
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57 else:
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58 # surrogate pair
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59 n -= 0x10000
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60 s1 = 0xd800 | ((n >> 10) & 0x3ff)
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61 s2 = 0xdc00 | (n & 0x3ff)
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62 return '\\u{0:04x}\\u{1:04x}'.format(s1, s2)
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63 #return '\\u%04x\\u%04x' % (s1, s2)
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64 return '"' + str(ESCAPE_ASCII.sub(replace, s)) + '"'
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65
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66
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67 encode_basestring_ascii = (
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68 c_encode_basestring_ascii or py_encode_basestring_ascii)
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69
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70 class JSONEncoder(object):
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71 """Extensible JSON <http://json.org> encoder for Python data structures.
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72
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73 Supports the following objects and types by default:
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74
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75 +-------------------+---------------+
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76 | Python | JSON |
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77 +===================+===============+
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78 | dict | object |
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79 +-------------------+---------------+
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80 | list, tuple | array |
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81 +-------------------+---------------+
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82 | str, unicode | string |
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83 +-------------------+---------------+
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84 | int, long, float | number |
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85 +-------------------+---------------+
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86 | True | true |
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87 +-------------------+---------------+
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88 | False | false |
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89 +-------------------+---------------+
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90 | None | null |
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91 +-------------------+---------------+
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92
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93 To extend this to recognize other objects, subclass and implement a
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94 ``.default()`` method with another method that returns a serializable
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95 object for ``o`` if possible, otherwise it should call the superclass
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96 implementation (to raise ``TypeError``).
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97
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98 """
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99 item_separator = ', '
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100 key_separator = ': '
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101 def __init__(self, skipkeys=False, ensure_ascii=True,
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102 check_circular=True, allow_nan=True, sort_keys=False,
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103 indent=None, separators=None, encoding='utf-8', default=None):
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104 """Constructor for JSONEncoder, with sensible defaults.
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105
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106 If skipkeys is false, then it is a TypeError to attempt
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107 encoding of keys that are not str, int, long, float or None. If
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108 skipkeys is True, such items are simply skipped.
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109
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110 If *ensure_ascii* is true (the default), all non-ASCII
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111 characters in the output are escaped with \uXXXX sequences,
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112 and the results are str instances consisting of ASCII
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113 characters only. If ensure_ascii is False, a result may be a
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114 unicode instance. This usually happens if the input contains
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115 unicode strings or the *encoding* parameter is used.
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116
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117 If check_circular is true, then lists, dicts, and custom encoded
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118 objects will be checked for circular references during encoding to
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119 prevent an infinite recursion (which would cause an OverflowError).
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120 Otherwise, no such check takes place.
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121
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122 If allow_nan is true, then NaN, Infinity, and -Infinity will be
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123 encoded as such. This behavior is not JSON specification compliant,
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124 but is consistent with most JavaScript based encoders and decoders.
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125 Otherwise, it will be a ValueError to encode such floats.
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126
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127 If sort_keys is true, then the output of dictionaries will be
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128 sorted by key; this is useful for regression tests to ensure
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129 that JSON serializations can be compared on a day-to-day basis.
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130
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131 If indent is a non-negative integer, then JSON array
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132 elements and object members will be pretty-printed with that
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133 indent level. An indent level of 0 will only insert newlines.
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134 None is the most compact representation. Since the default
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135 item separator is ', ', the output might include trailing
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136 whitespace when indent is specified. You can use
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137 separators=(',', ': ') to avoid this.
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138
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139 If specified, separators should be a (item_separator, key_separator)
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140 tuple. The default is (', ', ': '). To get the most compact JSON
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141 representation you should specify (',', ':') to eliminate whitespace.
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142
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143 If specified, default is a function that gets called for objects
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144 that can't otherwise be serialized. It should return a JSON encodable
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145 version of the object or raise a ``TypeError``.
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146
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147 If encoding is not None, then all input strings will be
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148 transformed into unicode using that encoding prior to JSON-encoding.
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149 The default is UTF-8.
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150
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151 """
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152
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153 self.skipkeys = skipkeys
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154 self.ensure_ascii = ensure_ascii
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155 self.check_circular = check_circular
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156 self.allow_nan = allow_nan
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157 self.sort_keys = sort_keys
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158 self.indent = indent
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159 if separators is not None:
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160 self.item_separator, self.key_separator = separators
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161 if default is not None:
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162 self.default = default
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163 self.encoding = encoding
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164
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165 def default(self, o):
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166 """Implement this method in a subclass such that it returns
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167 a serializable object for ``o``, or calls the base implementation
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168 (to raise a ``TypeError``).
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169
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170 For example, to support arbitrary iterators, you could
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171 implement default like this::
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172
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173 def default(self, o):
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174 try:
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175 iterable = iter(o)
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176 except TypeError:
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177 pass
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178 else:
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179 return list(iterable)
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180 return JSONEncoder.default(self, o)
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181
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182 """
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183 raise TypeError(repr(o) + " is not JSON serializable")
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184
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185 def encode(self, o):
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186 """Return a JSON string representation of a Python data structure.
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187
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188 >>> JSONEncoder().encode({"foo": ["bar", "baz"]})
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189 '{"foo": ["bar", "baz"]}'
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190
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191 """
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192 # This is for extremely simple cases and benchmarks.
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193 if isinstance(o, basestring):
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194 if isinstance(o, str):
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195 _encoding = self.encoding
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196 if (_encoding is not None
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197 and not (_encoding == 'utf-8')):
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198 o = o.decode(_encoding)
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199 if self.ensure_ascii:
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200 return encode_basestring_ascii(o)
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201 else:
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202 return encode_basestring(o)
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203 # This doesn't pass the iterator directly to ''.join() because the
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204 # exceptions aren't as detailed. The list call should be roughly
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205 # equivalent to the PySequence_Fast that ''.join() would do.
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206 chunks = self.iterencode(o, _one_shot=True)
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207 if not isinstance(chunks, (list, tuple)):
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208 chunks = list(chunks)
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209 return ''.join(chunks)
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210
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211 def iterencode(self, o, _one_shot=False):
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212 """Encode the given object and yield each string
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213 representation as available.
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214
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215 For example::
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216
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217 for chunk in JSONEncoder().iterencode(bigobject):
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218 mysocket.write(chunk)
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219
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220 """
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221 if self.check_circular:
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222 markers = {}
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223 else:
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224 markers = None
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225 if self.ensure_ascii:
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226 _encoder = encode_basestring_ascii
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227 else:
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228 _encoder = encode_basestring
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229 if self.encoding != 'utf-8':
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230 def _encoder(o, _orig_encoder=_encoder, _encoding=self.encoding):
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231 if isinstance(o, str):
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232 o = o.decode(_encoding)
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233 return _orig_encoder(o)
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234
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235 def floatstr(o, allow_nan=self.allow_nan,
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236 _repr=FLOAT_REPR, _inf=INFINITY, _neginf=-INFINITY):
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237 # Check for specials. Note that this type of test is processor
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238 # and/or platform-specific, so do tests which don't depend on the
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239 # internals.
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240
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241 if o != o:
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242 text = 'NaN'
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243 elif o == _inf:
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244 text = 'Infinity'
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245 elif o == _neginf:
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246 text = '-Infinity'
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247 else:
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248 return _repr(o)
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249
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250 if not allow_nan:
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251 raise ValueError(
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252 "Out of range float values are not JSON compliant: " +
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253 repr(o))
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254
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255 return text
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256
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257
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258 if (_one_shot and c_make_encoder is not None
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259 and self.indent is None and not self.sort_keys):
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260 _iterencode = c_make_encoder(
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261 markers, self.default, _encoder, self.indent,
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diff changeset
262 self.key_separator, self.item_separator, self.sort_keys,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
263 self.skipkeys, self.allow_nan)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
264 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
265 _iterencode = _make_iterencode(
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
266 markers, self.default, _encoder, self.indent, floatstr,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
267 self.key_separator, self.item_separator, self.sort_keys,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
268 self.skipkeys, _one_shot)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
269 return _iterencode(o, 0)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
270
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
271 def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
272 _key_separator, _item_separator, _sort_keys, _skipkeys, _one_shot,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
273 ## HACK: hand-optimized bytecode; turn globals into locals
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
274 ValueError=ValueError,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
275 basestring=basestring,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
276 dict=dict,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
277 float=float,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
278 id=id,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
279 int=int,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
280 isinstance=isinstance,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
281 list=list,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
282 long=long,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
283 str=str,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
284 tuple=tuple,
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
285 ):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
286
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
287 def _iterencode_list(lst, _current_indent_level):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
288 if not lst:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
289 yield '[]'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
290 return
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
291 if markers is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
292 markerid = id(lst)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
293 if markerid in markers:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
294 raise ValueError("Circular reference detected")
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
295 markers[markerid] = lst
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
296 buf = '['
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
297 if _indent is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
298 _current_indent_level += 1
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
299 newline_indent = '\n' + (' ' * (_indent * _current_indent_level))
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
300 separator = _item_separator + newline_indent
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
301 buf += newline_indent
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
302 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
303 newline_indent = None
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
304 separator = _item_separator
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
305 first = True
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
306 for value in lst:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
307 if first:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
308 first = False
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
309 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
310 buf = separator
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
311 if isinstance(value, basestring):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
312 yield buf + _encoder(value)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
313 elif value is None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
314 yield buf + 'null'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
315 elif value is True:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
316 yield buf + 'true'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
317 elif value is False:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
318 yield buf + 'false'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
319 elif isinstance(value, (int, long)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
320 yield buf + str(value)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
321 elif isinstance(value, float):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
322 yield buf + _floatstr(value)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
323 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
324 yield buf
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
325 if isinstance(value, (list, tuple)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
326 chunks = _iterencode_list(value, _current_indent_level)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
327 elif isinstance(value, dict):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
328 chunks = _iterencode_dict(value, _current_indent_level)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
329 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
330 chunks = _iterencode(value, _current_indent_level)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
331 for chunk in chunks:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
332 yield chunk
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
333 if newline_indent is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
334 _current_indent_level -= 1
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
335 yield '\n' + (' ' * (_indent * _current_indent_level))
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
336 yield ']'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
337 if markers is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
338 del markers[markerid]
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
339
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
340 def _iterencode_dict(dct, _current_indent_level):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
341 if not dct:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
342 yield '{}'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
343 return
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
344 if markers is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
345 markerid = id(dct)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
346 if markerid in markers:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
347 raise ValueError("Circular reference detected")
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
348 markers[markerid] = dct
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
349 yield '{'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
350 if _indent is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
351 _current_indent_level += 1
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
352 newline_indent = '\n' + (' ' * (_indent * _current_indent_level))
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
353 item_separator = _item_separator + newline_indent
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
354 yield newline_indent
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
355 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
356 newline_indent = None
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
357 item_separator = _item_separator
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
358 first = True
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
359 if _sort_keys:
58498
22aea131b6af #7092: fix DeprecationWarnings for json when the tests are run with -3 -Wd.
Ezio Melotti <ezio.melotti@gmail.com>
parents: 52199
diff changeset
360 items = sorted(dct.items(), key=lambda kv: kv[0])
52199
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
361 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
362 items = dct.iteritems()
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
363 for key, value in items:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
364 if isinstance(key, basestring):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
365 pass
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
366 # JavaScript is weakly typed for these, so it makes sense to
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
367 # also allow them. Many encoders seem to do something like this.
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
368 elif isinstance(key, float):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
369 key = _floatstr(key)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
370 elif key is True:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
371 key = 'true'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
372 elif key is False:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
373 key = 'false'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
374 elif key is None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
375 key = 'null'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
376 elif isinstance(key, (int, long)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
377 key = str(key)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
378 elif _skipkeys:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
379 continue
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
380 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
381 raise TypeError("key " + repr(key) + " is not a string")
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
382 if first:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
383 first = False
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
384 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
385 yield item_separator
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
386 yield _encoder(key)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
387 yield _key_separator
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
388 if isinstance(value, basestring):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
389 yield _encoder(value)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
390 elif value is None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
391 yield 'null'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
392 elif value is True:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
393 yield 'true'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
394 elif value is False:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
395 yield 'false'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
396 elif isinstance(value, (int, long)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
397 yield str(value)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
398 elif isinstance(value, float):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
399 yield _floatstr(value)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
400 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
401 if isinstance(value, (list, tuple)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
402 chunks = _iterencode_list(value, _current_indent_level)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
403 elif isinstance(value, dict):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
404 chunks = _iterencode_dict(value, _current_indent_level)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
405 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
406 chunks = _iterencode(value, _current_indent_level)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
407 for chunk in chunks:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
408 yield chunk
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
409 if newline_indent is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
410 _current_indent_level -= 1
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
411 yield '\n' + (' ' * (_indent * _current_indent_level))
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
412 yield '}'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
413 if markers is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
414 del markers[markerid]
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
415
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
416 def _iterencode(o, _current_indent_level):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
417 if isinstance(o, basestring):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
418 yield _encoder(o)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
419 elif o is None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
420 yield 'null'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
421 elif o is True:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
422 yield 'true'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
423 elif o is False:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
424 yield 'false'
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
425 elif isinstance(o, (int, long)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
426 yield str(o)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
427 elif isinstance(o, float):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
428 yield _floatstr(o)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
429 elif isinstance(o, (list, tuple)):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
430 for chunk in _iterencode_list(o, _current_indent_level):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
431 yield chunk
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
432 elif isinstance(o, dict):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
433 for chunk in _iterencode_dict(o, _current_indent_level):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
434 yield chunk
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
435 else:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
436 if markers is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
437 markerid = id(o)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
438 if markerid in markers:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
439 raise ValueError("Circular reference detected")
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
440 markers[markerid] = o
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
441 o = _default(o)
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
442 for chunk in _iterencode(o, _current_indent_level):
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
443 yield chunk
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
444 if markers is not None:
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
445 del markers[markerid]
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
446
d95e5add3ca4 merge json library with simplejson 2.0.9 (issue 4136)
Bob Ippolito <bob@redivi.com>
parents: 46719
diff changeset
447 return _iterencode