annotate Modules/operator.c @ 32273:95287cddbc1e legacy-trunk

add -L flag to cause leaks(1) command to run just before exit
author Skip Montanaro <skip@pobox.com>
date Sun, 06 Jun 2004 15:53:18 +0000
parents d7630ce7aa9f
children 97c97194e64b ddc2276c247e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 #include "Python.h"
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3
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4 PyDoc_STRVAR(operator_doc,
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5 "Operator interface.\n\
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6 \n\
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7 This module exports a set of functions implemented in C corresponding\n\
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8 to the intrinsic operators of Python. For example, operator.add(x, y)\n\
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9 is equivalent to the expression x+y. The function names are those\n\
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10 used for special class methods; variants without leading and trailing\n\
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11 '__' are also provided for convenience.");
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12
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13 #define spam1(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a1) { \
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14 return AOP(a1); }
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15
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16 #define spam2(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
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17 PyObject *a1, *a2; \
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18 if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
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19 return AOP(a1,a2); }
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20
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21 #define spamoi(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
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22 PyObject *a1; int a2; \
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23 if(! PyArg_ParseTuple(a,"Oi:" #OP,&a1,&a2)) return NULL; \
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24 return AOP(a1,a2); }
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25
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26 #define spam2n(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
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27 PyObject *a1, *a2; \
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28 if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
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29 if(-1 == AOP(a1,a2)) return NULL; \
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30 Py_INCREF(Py_None); \
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31 return Py_None; }
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32
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33 #define spam3n(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
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34 PyObject *a1, *a2, *a3; \
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35 if(! PyArg_UnpackTuple(a,#OP,3,3,&a1,&a2,&a3)) return NULL; \
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36 if(-1 == AOP(a1,a2,a3)) return NULL; \
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37 Py_INCREF(Py_None); \
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38 return Py_None; }
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39
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40 #define spami(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a1) { \
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41 long r; \
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42 if(-1 == (r=AOP(a1))) return NULL; \
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43 return PyBool_FromLong(r); }
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44
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45 #define spami2(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
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46 PyObject *a1, *a2; long r; \
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47 if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
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48 if(-1 == (r=AOP(a1,a2))) return NULL; \
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49 return PyInt_FromLong(r); }
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50
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51 #define spami2b(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
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52 PyObject *a1, *a2; long r; \
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53 if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
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54 if(-1 == (r=AOP(a1,a2))) return NULL; \
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55 return PyBool_FromLong(r); }
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56
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57 #define spamrc(OP,A) static PyObject *OP(PyObject *s, PyObject *a) { \
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58 PyObject *a1, *a2; \
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59 if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
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60 return PyObject_RichCompare(a1,a2,A); }
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61
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62 spami(isCallable , PyCallable_Check)
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63 spami(isNumberType , PyNumber_Check)
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64 spami(truth , PyObject_IsTrue)
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65 spam2(op_add , PyNumber_Add)
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66 spam2(op_sub , PyNumber_Subtract)
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67 spam2(op_mul , PyNumber_Multiply)
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68 spam2(op_div , PyNumber_Divide)
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69 spam2(op_floordiv , PyNumber_FloorDivide)
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70 spam2(op_truediv , PyNumber_TrueDivide)
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71 spam2(op_mod , PyNumber_Remainder)
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72 spam1(op_neg , PyNumber_Negative)
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73 spam1(op_pos , PyNumber_Positive)
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74 spam1(op_abs , PyNumber_Absolute)
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75 spam1(op_inv , PyNumber_Invert)
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76 spam1(op_invert , PyNumber_Invert)
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77 spam2(op_lshift , PyNumber_Lshift)
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78 spam2(op_rshift , PyNumber_Rshift)
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79 spami(op_not_ , PyObject_Not)
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80 spam2(op_and_ , PyNumber_And)
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81 spam2(op_xor , PyNumber_Xor)
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82 spam2(op_or_ , PyNumber_Or)
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83 spami(isSequenceType , PySequence_Check)
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84 spam2(op_concat , PySequence_Concat)
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85 spamoi(op_repeat , PySequence_Repeat)
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86 spami2b(op_contains , PySequence_Contains)
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87 spami2b(sequenceIncludes, PySequence_Contains)
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88 spami2(indexOf , PySequence_Index)
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89 spami2(countOf , PySequence_Count)
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90 spami(isMappingType , PyMapping_Check)
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91 spam2(op_getitem , PyObject_GetItem)
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92 spam2n(op_delitem , PyObject_DelItem)
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93 spam3n(op_setitem , PyObject_SetItem)
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94 spamrc(op_lt , Py_LT)
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95 spamrc(op_le , Py_LE)
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96 spamrc(op_eq , Py_EQ)
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97 spamrc(op_ne , Py_NE)
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98 spamrc(op_gt , Py_GT)
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99 spamrc(op_ge , Py_GE)
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100
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101 static PyObject*
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102 op_pow(PyObject *s, PyObject *a)
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103 {
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104 PyObject *a1, *a2;
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105 if (PyArg_UnpackTuple(a,"pow", 2, 2, &a1, &a2))
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106 return PyNumber_Power(a1, a2, Py_None);
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107 return NULL;
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108 }
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109
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110 static PyObject*
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111 is_(PyObject *s, PyObject *a)
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112 {
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113 PyObject *a1, *a2, *result = NULL;
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114 if (PyArg_UnpackTuple(a,"is_", 2, 2, &a1, &a2)) {
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115 result = (a1 == a2) ? Py_True : Py_False;
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116 Py_INCREF(result);
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117 }
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118 return result;
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119 }
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120
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121 static PyObject*
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122 is_not(PyObject *s, PyObject *a)
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123 {
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124 PyObject *a1, *a2, *result = NULL;
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125 if (PyArg_UnpackTuple(a,"is_not", 2, 2, &a1, &a2)) {
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126 result = (a1 != a2) ? Py_True : Py_False;
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127 Py_INCREF(result);
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128 }
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129 return result;
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130 }
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131
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132 static PyObject*
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133 op_getslice(PyObject *s, PyObject *a)
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134 {
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135 PyObject *a1;
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136 int a2,a3;
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137
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138 if (!PyArg_ParseTuple(a,"Oii:getslice",&a1,&a2,&a3))
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139 return NULL;
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140 return PySequence_GetSlice(a1,a2,a3);
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141 }
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142
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143 static PyObject*
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144 op_setslice(PyObject *s, PyObject *a)
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145 {
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146 PyObject *a1, *a4;
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147 int a2,a3;
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148
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149 if (!PyArg_ParseTuple(a,"OiiO:setslice",&a1,&a2,&a3,&a4))
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150 return NULL;
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151
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152 if (-1 == PySequence_SetSlice(a1,a2,a3,a4))
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153 return NULL;
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154
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155 Py_INCREF(Py_None);
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156 return Py_None;
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157 }
0d54a14ef0b8 Operators like __add__
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diff changeset
158
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diff changeset
159 static PyObject*
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160 op_delslice(PyObject *s, PyObject *a)
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parents: 4033
diff changeset
161 {
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162 PyObject *a1;
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163 int a2,a3;
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parents: 4033
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164
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diff changeset
165 if(! PyArg_ParseTuple(a,"Oii:delslice",&a1,&a2,&a3))
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166 return NULL;
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parents: 4033
diff changeset
167
4775
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parents: 4580
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168 if (-1 == PySequence_DelSlice(a1,a2,a3))
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parents: 4580
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169 return NULL;
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parents: 4033
diff changeset
170
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171 Py_INCREF(Py_None);
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parents: 4580
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172 return Py_None;
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Guido van Rossum <guido@python.org>
parents: 4033
diff changeset
173 }
9f70d995d027 Added delslice and delitem.
Guido van Rossum <guido@python.org>
parents: 4033
diff changeset
174
3844
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175 #undef spam1
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parents:
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176 #undef spam2
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diff changeset
177 #undef spam1o
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178 #undef spam1o
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Neal Norwitz <nnorwitz@gmail.com>
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diff changeset
179 #define spam1(OP,DOC) {#OP, OP, METH_VARARGS, PyDoc_STR(DOC)},
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180 #define spam2(OP,ALTOP,DOC) {#OP, op_##OP, METH_VARARGS, DOC}, \
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diff changeset
181 {#ALTOP, op_##OP, METH_VARARGS, PyDoc_STR(DOC)},
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diff changeset
182 #define spam1o(OP,DOC) {#OP, OP, METH_O, PyDoc_STR(DOC)},
23280a64288e SF patch 660559: Use METH_O and METH_NOARGS where possible
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diff changeset
183 #define spam2o(OP,ALTOP,DOC) {#OP, op_##OP, METH_O, DOC}, \
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diff changeset
184 {#ALTOP, op_##OP, METH_O, PyDoc_STR(DOC)},
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parents:
diff changeset
185
0d54a14ef0b8 Operators like __add__
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parents:
diff changeset
186 static struct PyMethodDef operator_methods[] = {
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parents:
diff changeset
187
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diff changeset
188 spam1o(isCallable,
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diff changeset
189 "isCallable(a) -- Same as callable(a).")
27044
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parents: 26818
diff changeset
190 spam1o(isNumberType,
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Guido van Rossum <guido@python.org>
parents: 19111
diff changeset
191 "isNumberType(a) -- Return True if a has a numeric type, False otherwise.")
27044
23280a64288e SF patch 660559: Use METH_O and METH_NOARGS where possible
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parents: 26818
diff changeset
192 spam1o(isSequenceType,
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Guido van Rossum <guido@python.org>
parents: 19111
diff changeset
193 "isSequenceType(a) -- Return True if a has a sequence type, False otherwise.")
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parents: 26818
diff changeset
194 spam1o(truth,
22785
aa8d59823add Add the 'bool' type and its values 'False' and 'True', as described in
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parents: 19111
diff changeset
195 "truth(a) -- Return True if a is true, False otherwise.")
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0bd746bc7627 Add invert() and __invert__() as aliases for inv()/__inv__().
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diff changeset
196 spam2(contains,__contains__,
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diff changeset
197 "contains(a, b) -- Same as b in a (note reversed operands).")
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0bd746bc7627 Add invert() and __invert__() as aliases for inv()/__inv__().
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parents: 13651
diff changeset
198 spam1(sequenceIncludes,
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diff changeset
199 "sequenceIncludes(a, b) -- Same as b in a (note reversed operands; deprecated).")
4033
5592de9656de Made it palatable for K&R preprocessors. The spam macros don't have
Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
200 spam1(indexOf,
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Guido van Rossum <guido@python.org>
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diff changeset
201 "indexOf(a, b) -- Return the first index of b in a.")
4033
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Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
202 spam1(countOf,
5592de9656de Made it palatable for K&R preprocessors. The spam macros don't have
Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
203 "countOf(a, b) -- Return the number of times b occurs in a.")
27044
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Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
204 spam1o(isMappingType,
22785
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Guido van Rossum <guido@python.org>
parents: 19111
diff changeset
205 "isMappingType(a) -- Return True if a has a mapping type, False otherwise.")
3844
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parents:
diff changeset
206
27290
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Raymond Hettinger <python@rcn.com>
parents: 27044
diff changeset
207 spam1(is_, "is_(a, b) -- Same as a is b.")
e83a42a90df1 SF patch #670423: Add missing identity tests to operator.c
Raymond Hettinger <python@rcn.com>
parents: 27044
diff changeset
208 spam1(is_not, "is_not(a, b) -- Same as a is not b.")
8414
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
209 spam2(add,__add__, "add(a, b) -- Same as a + b.")
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
210 spam2(sub,__sub__, "sub(a, b) -- Same as a - b.")
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
211 spam2(mul,__mul__, "mul(a, b) -- Same as a * b.")
19111
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Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
212 spam2(div,__div__, "div(a, b) -- Same as a / b when __future__.division is not in effect.")
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Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
213 spam2(floordiv,__floordiv__, "floordiv(a, b) -- Same as a // b.")
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Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
214 spam2(truediv,__truediv__, "truediv(a, b) -- Same as a / b when __future__.division is in effect.")
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
215 spam2(mod,__mod__, "mod(a, b) -- Same as a % b.")
27044
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Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
216 spam2o(neg,__neg__, "neg(a) -- Same as -a.")
23280a64288e SF patch 660559: Use METH_O and METH_NOARGS where possible
Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
217 spam2o(pos,__pos__, "pos(a) -- Same as +a.")
23280a64288e SF patch 660559: Use METH_O and METH_NOARGS where possible
Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
218 spam2o(abs,__abs__, "abs(a) -- Same as abs(a).")
23280a64288e SF patch 660559: Use METH_O and METH_NOARGS where possible
Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
219 spam2o(inv,__inv__, "inv(a) -- Same as ~a.")
23280a64288e SF patch 660559: Use METH_O and METH_NOARGS where possible
Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
220 spam2o(invert,__invert__, "invert(a) -- Same as ~a.")
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
221 spam2(lshift,__lshift__, "lshift(a, b) -- Same as a << b.")
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
222 spam2(rshift,__rshift__, "rshift(a, b) -- Same as a >> b.")
27044
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Raymond Hettinger <python@rcn.com>
parents: 26818
diff changeset
223 spam2o(not_,__not__, "not_(a) -- Same as not a.")
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
224 spam2(and_,__and__, "and_(a, b) -- Same as a & b.")
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
225 spam2(xor,__xor__, "xor(a, b) -- Same as a ^ b.")
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
226 spam2(or_,__or__, "or_(a, b) -- Same as a | b.")
4033
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Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
227 spam2(concat,__concat__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
228 "concat(a, b) -- Same as a + b, for a and b sequences.")
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Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
229 spam2(repeat,__repeat__,
4580
11bd4f497742 Correct typo -- repeat implements *, not +.
Guido van Rossum <guido@python.org>
parents: 4104
diff changeset
230 "repeat(a, b) -- Return a * b, where a is a sequence, and b is an integer.")
4033
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Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
231 spam2(getitem,__getitem__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
232 "getitem(a, b) -- Same as a[b].")
4033
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Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
233 spam2(setitem,__setitem__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
234 "setitem(a, b, c) -- Same as a[b] = c.")
4089
9f70d995d027 Added delslice and delitem.
Guido van Rossum <guido@python.org>
parents: 4033
diff changeset
235 spam2(delitem,__delitem__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
236 "delitem(a, b) -- Same as del a[b].")
24887
d797cfa8ca0d Added __pow__(a,b) to the operator module. Completes the pattern of
Raymond Hettinger <python@rcn.com>
parents: 24796
diff changeset
237 spam2(pow,__pow__, "pow(a, b) -- Same as a**b.")
4033
5592de9656de Made it palatable for K&R preprocessors. The spam macros don't have
Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
238 spam2(getslice,__getslice__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
239 "getslice(a, b, c) -- Same as a[b:c].")
4033
5592de9656de Made it palatable for K&R preprocessors. The spam macros don't have
Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
240 spam2(setslice,__setslice__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
241 "setslice(a, b, c, d) -- Same as a[b:c] = d.")
4089
9f70d995d027 Added delslice and delitem.
Guido van Rossum <guido@python.org>
parents: 4033
diff changeset
242 spam2(delslice,__delslice__,
8414
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Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
243 "delslice(a, b, c) -- Same as del a[b:c].")
19111
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Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
244 spam2(lt,__lt__, "lt(a, b) -- Same as a<b.")
6ba441507220 Add wrappers around the rich-comparison operations.
Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
245 spam2(le,__le__, "le(a, b) -- Same as a<=b.")
6ba441507220 Add wrappers around the rich-comparison operations.
Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
246 spam2(eq,__eq__, "eq(a, b) -- Same as a==b.")
6ba441507220 Add wrappers around the rich-comparison operations.
Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
247 spam2(ne,__ne__, "ne(a, b) -- Same as a!=b.")
6ba441507220 Add wrappers around the rich-comparison operations.
Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
248 spam2(gt,__gt__, "gt(a, b) -- Same as a>b.")
6ba441507220 Add wrappers around the rich-comparison operations.
Fred Drake <fdrake@acm.org>
parents: 14654
diff changeset
249 spam2(ge,__ge__, "ge(a, b) -- Same as a>=b.")
4033
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Guido van Rossum <guido@python.org>
parents: 3976
diff changeset
250
3844
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Guido van Rossum <guido@python.org>
parents:
diff changeset
251 {NULL, NULL} /* sentinel */
0d54a14ef0b8 Operators like __add__
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252
0d54a14ef0b8 Operators like __add__
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diff changeset
253 };
0d54a14ef0b8 Operators like __add__
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254
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255 /* itemgetter object **********************************************************/
3844
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256
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257 typedef struct {
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258 PyObject_HEAD
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259 PyObject *item;
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260 } itemgetterobject;
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261
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262 static PyTypeObject itemgetter_type;
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263
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264 static PyObject *
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265 itemgetter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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266 {
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267 itemgetterobject *ig;
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268 PyObject *item;
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269
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270 if (!PyArg_UnpackTuple(args, "itemgetter", 1, 1, &item))
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271 return NULL;
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272
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273 /* create itemgetterobject structure */
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274 ig = PyObject_GC_New(itemgetterobject, &itemgetter_type);
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275 if (ig == NULL)
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276 return NULL;
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277
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278 Py_INCREF(item);
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279 ig->item = item;
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280
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281 PyObject_GC_Track(ig);
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282 return (PyObject *)ig;
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283 }
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284
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285 static void
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286 itemgetter_dealloc(itemgetterobject *ig)
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287 {
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288 PyObject_GC_UnTrack(ig);
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289 Py_XDECREF(ig->item);
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290 PyObject_GC_Del(ig);
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291 }
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292
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293 static int
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294 itemgetter_traverse(itemgetterobject *ig, visitproc visit, void *arg)
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295 {
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296 if (ig->item)
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297 return visit(ig->item, arg);
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298 return 0;
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299 }
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300
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301 static PyObject *
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302 itemgetter_call(itemgetterobject *ig, PyObject *args, PyObject *kw)
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303 {
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304 PyObject * obj;
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305
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306 if (!PyArg_UnpackTuple(args, "itemgetter", 1, 1, &obj))
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307 return NULL;
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308 return PyObject_GetItem(obj, ig->item);
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309 }
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310
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311 PyDoc_STRVAR(itemgetter_doc,
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312 "itemgetter(item) --> itemgetter object\n\
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313 \n\
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314 Return a callable object that fetches the given item from its operand.\n\
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315 After, f=itemgetter(2), the call f(b) returns b[2].");
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316
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317 static PyTypeObject itemgetter_type = {
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318 PyObject_HEAD_INIT(NULL)
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319 0, /* ob_size */
31110
d7630ce7aa9f Fix typos.
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320 "operator.itemgetter", /* tp_name */
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321 sizeof(itemgetterobject), /* tp_basicsize */
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322 0, /* tp_itemsize */
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323 /* methods */
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324 (destructor)itemgetter_dealloc, /* tp_dealloc */
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325 0, /* tp_print */
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326 0, /* tp_getattr */
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327 0, /* tp_setattr */
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328 0, /* tp_compare */
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329 0, /* tp_repr */
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330 0, /* tp_as_number */
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331 0, /* tp_as_sequence */
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332 0, /* tp_as_mapping */
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333 0, /* tp_hash */
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334 (ternaryfunc)itemgetter_call, /* tp_call */
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335 0, /* tp_str */
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336 PyObject_GenericGetAttr, /* tp_getattro */
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337 0, /* tp_setattro */
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338 0, /* tp_as_buffer */
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339 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
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340 itemgetter_doc, /* tp_doc */
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341 (traverseproc)itemgetter_traverse, /* tp_traverse */
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342 0, /* tp_clear */
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343 0, /* tp_richcompare */
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344 0, /* tp_weaklistoffset */
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345 0, /* tp_iter */
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346 0, /* tp_iternext */
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347 0, /* tp_methods */
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348 0, /* tp_members */
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349 0, /* tp_getset */
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350 0, /* tp_base */
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351 0, /* tp_dict */
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352 0, /* tp_descr_get */
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353 0, /* tp_descr_set */
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354 0, /* tp_dictoffset */
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355 0, /* tp_init */
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356 0, /* tp_alloc */
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357 itemgetter_new, /* tp_new */
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358 0, /* tp_free */
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359 };
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360
456e274f8602 As discussed on python-dev, added two extractor functions to the
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361
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362 /* attrgetter object **********************************************************/
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363
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364 typedef struct {
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365 PyObject_HEAD
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366 PyObject *attr;
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367 } attrgetterobject;
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368
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369 static PyTypeObject attrgetter_type;
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370
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371 static PyObject *
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372 attrgetter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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373 {
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374 attrgetterobject *ag;
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375 PyObject *attr;
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376
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377 if (!PyArg_UnpackTuple(args, "attrgetter", 1, 1, &attr))
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378 return NULL;
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379
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380 /* create attrgetterobject structure */
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381 ag = PyObject_GC_New(attrgetterobject, &attrgetter_type);
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382 if (ag == NULL)
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383 return NULL;
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384
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385 Py_INCREF(attr);
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386 ag->attr = attr;
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387
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388 PyObject_GC_Track(ag);
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389 return (PyObject *)ag;
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390 }
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diff changeset
391
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
392 static void
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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393 attrgetter_dealloc(attrgetterobject *ag)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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394 {
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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395 PyObject_GC_UnTrack(ag);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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396 Py_XDECREF(ag->attr);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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397 PyObject_GC_Del(ag);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
398 }
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
399
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
400 static int
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
401 attrgetter_traverse(attrgetterobject *ag, visitproc visit, void *arg)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
402 {
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
403 if (ag->attr)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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404 return visit(ag->attr, arg);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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405 return 0;
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
406 }
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
407
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
408 static PyObject *
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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409 attrgetter_call(attrgetterobject *ag, PyObject *args, PyObject *kw)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
410 {
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
411 PyObject * obj;
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
412
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
413 if (!PyArg_UnpackTuple(args, "attrgetter", 1, 1, &obj))
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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414 return NULL;
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
415 return PyObject_GetAttr(obj, ag->attr);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
416 }
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
417
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
418 PyDoc_STRVAR(attrgetter_doc,
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
419 "attrgetter(attr) --> attrgetter object\n\
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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420 \n\
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
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421 Return a callable object that fetches the given attribute from its operand.\n\
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
422 After, f=attrgetter('name'), the call f(b) returns b.name.");
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
423
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
424 static PyTypeObject attrgetter_type = {
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
425 PyObject_HEAD_INIT(NULL)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
426 0, /* ob_size */
31110
d7630ce7aa9f Fix typos.
Raymond Hettinger <python@rcn.com>
parents: 31052
diff changeset
427 "operator.attrgetter", /* tp_name */
31052
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
428 sizeof(attrgetterobject), /* tp_basicsize */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
429 0, /* tp_itemsize */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
430 /* methods */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
431 (destructor)attrgetter_dealloc, /* tp_dealloc */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
432 0, /* tp_print */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
433 0, /* tp_getattr */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
434 0, /* tp_setattr */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
435 0, /* tp_compare */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
436 0, /* tp_repr */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
437 0, /* tp_as_number */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
438 0, /* tp_as_sequence */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
439 0, /* tp_as_mapping */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
440 0, /* tp_hash */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
441 (ternaryfunc)attrgetter_call, /* tp_call */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
442 0, /* tp_str */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
443 PyObject_GenericGetAttr, /* tp_getattro */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
444 0, /* tp_setattro */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
445 0, /* tp_as_buffer */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
446 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
447 attrgetter_doc, /* tp_doc */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
448 (traverseproc)attrgetter_traverse, /* tp_traverse */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
449 0, /* tp_clear */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
450 0, /* tp_richcompare */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
451 0, /* tp_weaklistoffset */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
452 0, /* tp_iter */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
453 0, /* tp_iternext */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
454 0, /* tp_methods */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
455 0, /* tp_members */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
456 0, /* tp_getset */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
457 0, /* tp_base */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
458 0, /* tp_dict */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
459 0, /* tp_descr_get */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
460 0, /* tp_descr_set */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
461 0, /* tp_dictoffset */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
462 0, /* tp_init */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
463 0, /* tp_alloc */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
464 attrgetter_new, /* tp_new */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
465 0, /* tp_free */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
466 };
3844
0d54a14ef0b8 Operators like __add__
Guido van Rossum <guido@python.org>
parents:
diff changeset
467 /* Initialization function for the module (*must* be called initoperator) */
0d54a14ef0b8 Operators like __add__
Guido van Rossum <guido@python.org>
parents:
diff changeset
468
24471
f66b3a3509c7 Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype
Mark Hammond <mhammond@skippinet.com.au>
parents: 23832
diff changeset
469 PyMODINIT_FUNC
13651
8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)',
Thomas Wouters <thomas@python.org>
parents: 13424
diff changeset
470 initoperator(void)
3844
0d54a14ef0b8 Operators like __add__
Guido van Rossum <guido@python.org>
parents:
diff changeset
471 {
31052
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
472 PyObject *m;
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
473
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
474 /* Create the module and add the functions */
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
475 m = Py_InitModule4("operator", operator_methods, operator_doc,
8414
4064b6729537 Add an alias (and preferred name) "contains" for "sequenceIncludes".
Guido van Rossum <guido@python.org>
parents: 8406
diff changeset
476 (PyObject*)NULL, PYTHON_API_VERSION);
31052
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
477
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
478 if (PyType_Ready(&itemgetter_type) < 0)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
479 return;
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
480 Py_INCREF(&itemgetter_type);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
481 PyModule_AddObject(m, "itemgetter", (PyObject *)&itemgetter_type);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
482
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
483 if (PyType_Ready(&attrgetter_type) < 0)
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
484 return;
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
485 Py_INCREF(&attrgetter_type);
456e274f8602 As discussed on python-dev, added two extractor functions to the
Raymond Hettinger <python@rcn.com>
parents: 27290
diff changeset
486 PyModule_AddObject(m, "attrgetter", (PyObject *)&attrgetter_type);
3844
0d54a14ef0b8 Operators like __add__
Guido van Rossum <guido@python.org>
parents:
diff changeset
487 }