annotate env/lib/python3.7/site-packages/jinja2/tests.py @ 0:26e78fe6e8c4 draft

"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 # -*- coding: utf-8 -*-
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2 """Built-in template tests used with the ``is`` operator."""
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3 import decimal
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4 import operator
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5 import re
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6
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7 from ._compat import abc
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8 from ._compat import integer_types
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9 from ._compat import string_types
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10 from ._compat import text_type
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11 from .runtime import Undefined
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12
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13 number_re = re.compile(r"^-?\d+(\.\d+)?$")
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14 regex_type = type(number_re)
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15 test_callable = callable
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16
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17
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18 def test_odd(value):
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19 """Return true if the variable is odd."""
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20 return value % 2 == 1
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21
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22
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23 def test_even(value):
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24 """Return true if the variable is even."""
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25 return value % 2 == 0
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26
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27
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28 def test_divisibleby(value, num):
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29 """Check if a variable is divisible by a number."""
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30 return value % num == 0
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31
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32
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33 def test_defined(value):
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34 """Return true if the variable is defined:
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35
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36 .. sourcecode:: jinja
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37
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38 {% if variable is defined %}
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39 value of variable: {{ variable }}
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40 {% else %}
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41 variable is not defined
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42 {% endif %}
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43
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44 See the :func:`default` filter for a simple way to set undefined
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45 variables.
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46 """
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47 return not isinstance(value, Undefined)
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48
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49
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50 def test_undefined(value):
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51 """Like :func:`defined` but the other way round."""
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52 return isinstance(value, Undefined)
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53
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54
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55 def test_none(value):
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56 """Return true if the variable is none."""
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57 return value is None
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58
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59
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60 def test_boolean(value):
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61 """Return true if the object is a boolean value.
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62
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63 .. versionadded:: 2.11
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64 """
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65 return value is True or value is False
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66
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67
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68 def test_false(value):
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69 """Return true if the object is False.
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70
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71 .. versionadded:: 2.11
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72 """
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73 return value is False
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74
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75
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76 def test_true(value):
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77 """Return true if the object is True.
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78
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79 .. versionadded:: 2.11
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80 """
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81 return value is True
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82
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83
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84 # NOTE: The existing 'number' test matches booleans and floats
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85 def test_integer(value):
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86 """Return true if the object is an integer.
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87
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88 .. versionadded:: 2.11
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89 """
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90 return isinstance(value, integer_types) and value is not True and value is not False
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91
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92
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93 # NOTE: The existing 'number' test matches booleans and integers
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94 def test_float(value):
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95 """Return true if the object is a float.
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96
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97 .. versionadded:: 2.11
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98 """
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99 return isinstance(value, float)
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100
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101
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102 def test_lower(value):
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103 """Return true if the variable is lowercased."""
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104 return text_type(value).islower()
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105
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106
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107 def test_upper(value):
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108 """Return true if the variable is uppercased."""
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109 return text_type(value).isupper()
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110
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111
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112 def test_string(value):
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113 """Return true if the object is a string."""
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114 return isinstance(value, string_types)
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115
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116
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117 def test_mapping(value):
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118 """Return true if the object is a mapping (dict etc.).
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119
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120 .. versionadded:: 2.6
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121 """
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122 return isinstance(value, abc.Mapping)
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123
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124
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125 def test_number(value):
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126 """Return true if the variable is a number."""
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127 return isinstance(value, integer_types + (float, complex, decimal.Decimal))
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128
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129
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130 def test_sequence(value):
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131 """Return true if the variable is a sequence. Sequences are variables
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132 that are iterable.
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133 """
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134 try:
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135 len(value)
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136 value.__getitem__
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137 except Exception:
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138 return False
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139 return True
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140
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141
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142 def test_sameas(value, other):
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143 """Check if an object points to the same memory address than another
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144 object:
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145
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146 .. sourcecode:: jinja
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147
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148 {% if foo.attribute is sameas false %}
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149 the foo attribute really is the `False` singleton
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150 {% endif %}
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151 """
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152 return value is other
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153
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154
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155 def test_iterable(value):
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156 """Check if it's possible to iterate over an object."""
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157 try:
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158 iter(value)
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159 except TypeError:
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160 return False
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161 return True
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162
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163
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164 def test_escaped(value):
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165 """Check if the value is escaped."""
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166 return hasattr(value, "__html__")
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167
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168
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169 def test_in(value, seq):
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170 """Check if value is in seq.
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171
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172 .. versionadded:: 2.10
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173 """
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174 return value in seq
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175
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176
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177 TESTS = {
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178 "odd": test_odd,
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179 "even": test_even,
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180 "divisibleby": test_divisibleby,
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181 "defined": test_defined,
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182 "undefined": test_undefined,
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183 "none": test_none,
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184 "boolean": test_boolean,
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185 "false": test_false,
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186 "true": test_true,
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187 "integer": test_integer,
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188 "float": test_float,
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189 "lower": test_lower,
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190 "upper": test_upper,
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191 "string": test_string,
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192 "mapping": test_mapping,
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193 "number": test_number,
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194 "sequence": test_sequence,
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195 "iterable": test_iterable,
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196 "callable": test_callable,
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197 "sameas": test_sameas,
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198 "escaped": test_escaped,
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199 "in": test_in,
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200 "==": operator.eq,
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201 "eq": operator.eq,
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202 "equalto": operator.eq,
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203 "!=": operator.ne,
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204 "ne": operator.ne,
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205 ">": operator.gt,
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206 "gt": operator.gt,
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207 "greaterthan": operator.gt,
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208 "ge": operator.ge,
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209 ">=": operator.ge,
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210 "<": operator.lt,
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211 "lt": operator.lt,
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212 "lessthan": operator.lt,
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213 "<=": operator.le,
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214 "le": operator.le,
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215 }