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17 | <title>4.1 Standard Exceptions </title> | |
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55 | <H1><A NAME="SECTION006100000000000000000"></A><A NAME="standardExceptions"></A> | |
56 | <BR> | |
57 | 4.1 Standard Exceptions | |
58 | </H1> | |
59 | ||
60 | <P> | |
61 | All standard Python exceptions are available as global variables whose | |
62 | names are "<tt class="samp">PyExc_</tt>" followed by the Python exception name. These | |
63 | have the type <tt class="ctype">PyObject*</tt>; they are all class objects. For | |
64 | completeness, here are all the variables: | |
65 | ||
66 | <P> | |
67 | <div class="center"><table class="realtable"> | |
68 | <thead> | |
69 | <tr> | |
70 | <th class="left" >C Name</th> | |
71 | <th class="left" >Python Name</th> | |
72 | <th class="center">Notes</th> | |
73 | </tr> | |
74 | </thead> | |
75 | <tbody> | |
76 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_Exception<a id='l2h-126' xml:id='l2h-126'></a></tt></td> | |
77 | <td class="left" ><tt class="exception">Exception</tt></td> | |
78 | <td class="center">(1)</td></tr> | |
79 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_StandardError<a id='l2h-127' xml:id='l2h-127'></a></tt></td> | |
80 | <td class="left" ><tt class="exception">StandardError</tt></td> | |
81 | <td class="center">(1)</td></tr> | |
82 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_ArithmeticError<a id='l2h-128' xml:id='l2h-128'></a></tt></td> | |
83 | <td class="left" ><tt class="exception">ArithmeticError</tt></td> | |
84 | <td class="center">(1)</td></tr> | |
85 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_LookupError<a id='l2h-129' xml:id='l2h-129'></a></tt></td> | |
86 | <td class="left" ><tt class="exception">LookupError</tt></td> | |
87 | <td class="center">(1)</td></tr> | |
88 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_AssertionError<a id='l2h-130' xml:id='l2h-130'></a></tt></td> | |
89 | <td class="left" ><tt class="exception">AssertionError</tt></td> | |
90 | <td class="center"></td></tr> | |
91 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_AttributeError<a id='l2h-131' xml:id='l2h-131'></a></tt></td> | |
92 | <td class="left" ><tt class="exception">AttributeError</tt></td> | |
93 | <td class="center"></td></tr> | |
94 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_EOFError<a id='l2h-132' xml:id='l2h-132'></a></tt></td> | |
95 | <td class="left" ><tt class="exception">EOFError</tt></td> | |
96 | <td class="center"></td></tr> | |
97 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_EnvironmentError<a id='l2h-133' xml:id='l2h-133'></a></tt></td> | |
98 | <td class="left" ><tt class="exception">EnvironmentError</tt></td> | |
99 | <td class="center">(1)</td></tr> | |
100 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_FloatingPointError<a id='l2h-134' xml:id='l2h-134'></a></tt></td> | |
101 | <td class="left" ><tt class="exception">FloatingPointError</tt></td> | |
102 | <td class="center"></td></tr> | |
103 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_IOError<a id='l2h-135' xml:id='l2h-135'></a></tt></td> | |
104 | <td class="left" ><tt class="exception">IOError</tt></td> | |
105 | <td class="center"></td></tr> | |
106 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_ImportError<a id='l2h-136' xml:id='l2h-136'></a></tt></td> | |
107 | <td class="left" ><tt class="exception">ImportError</tt></td> | |
108 | <td class="center"></td></tr> | |
109 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_IndexError<a id='l2h-137' xml:id='l2h-137'></a></tt></td> | |
110 | <td class="left" ><tt class="exception">IndexError</tt></td> | |
111 | <td class="center"></td></tr> | |
112 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_KeyError<a id='l2h-138' xml:id='l2h-138'></a></tt></td> | |
113 | <td class="left" ><tt class="exception">KeyError</tt></td> | |
114 | <td class="center"></td></tr> | |
115 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_KeyboardInterrupt<a id='l2h-139' xml:id='l2h-139'></a></tt></td> | |
116 | <td class="left" ><tt class="exception">KeyboardInterrupt</tt></td> | |
117 | <td class="center"></td></tr> | |
118 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_MemoryError<a id='l2h-140' xml:id='l2h-140'></a></tt></td> | |
119 | <td class="left" ><tt class="exception">MemoryError</tt></td> | |
120 | <td class="center"></td></tr> | |
121 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_NameError<a id='l2h-141' xml:id='l2h-141'></a></tt></td> | |
122 | <td class="left" ><tt class="exception">NameError</tt></td> | |
123 | <td class="center"></td></tr> | |
124 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_NotImplementedError<a id='l2h-142' xml:id='l2h-142'></a></tt></td> | |
125 | <td class="left" ><tt class="exception">NotImplementedError</tt></td> | |
126 | <td class="center"></td></tr> | |
127 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_OSError<a id='l2h-143' xml:id='l2h-143'></a></tt></td> | |
128 | <td class="left" ><tt class="exception">OSError</tt></td> | |
129 | <td class="center"></td></tr> | |
130 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_OverflowError<a id='l2h-144' xml:id='l2h-144'></a></tt></td> | |
131 | <td class="left" ><tt class="exception">OverflowError</tt></td> | |
132 | <td class="center"></td></tr> | |
133 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_ReferenceError<a id='l2h-145' xml:id='l2h-145'></a></tt></td> | |
134 | <td class="left" ><tt class="exception">ReferenceError</tt></td> | |
135 | <td class="center">(2)</td></tr> | |
136 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_RuntimeError<a id='l2h-146' xml:id='l2h-146'></a></tt></td> | |
137 | <td class="left" ><tt class="exception">RuntimeError</tt></td> | |
138 | <td class="center"></td></tr> | |
139 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_SyntaxError<a id='l2h-147' xml:id='l2h-147'></a></tt></td> | |
140 | <td class="left" ><tt class="exception">SyntaxError</tt></td> | |
141 | <td class="center"></td></tr> | |
142 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_SystemError<a id='l2h-148' xml:id='l2h-148'></a></tt></td> | |
143 | <td class="left" ><tt class="exception">SystemError</tt></td> | |
144 | <td class="center"></td></tr> | |
145 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_SystemExit<a id='l2h-149' xml:id='l2h-149'></a></tt></td> | |
146 | <td class="left" ><tt class="exception">SystemExit</tt></td> | |
147 | <td class="center"></td></tr> | |
148 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_TypeError<a id='l2h-150' xml:id='l2h-150'></a></tt></td> | |
149 | <td class="left" ><tt class="exception">TypeError</tt></td> | |
150 | <td class="center"></td></tr> | |
151 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_ValueError<a id='l2h-151' xml:id='l2h-151'></a></tt></td> | |
152 | <td class="left" ><tt class="exception">ValueError</tt></td> | |
153 | <td class="center"></td></tr> | |
154 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_WindowsError<a id='l2h-152' xml:id='l2h-152'></a></tt></td> | |
155 | <td class="left" ><tt class="exception">WindowsError</tt></td> | |
156 | <td class="center">(3)</td></tr> | |
157 | <tr><td class="left" valign="baseline"><tt class="cdata">PyExc_ZeroDivisionError<a id='l2h-153' xml:id='l2h-153'></a></tt></td> | |
158 | <td class="left" ><tt class="exception">ZeroDivisionError</tt></td> | |
159 | <td class="center"></td></tr></tbody> | |
160 | </table></div> | |
161 | ||
162 | <P> | |
163 | Notes: | |
164 | <DL> | |
165 | <DT><STRONG>(1)</STRONG></DT> | |
166 | <DD>This is a base class for other standard exceptions. | |
167 | ||
168 | <P> | |
169 | </DD> | |
170 | <DT><STRONG>(2)</STRONG></DT> | |
171 | <DD>This is the same as <tt class="exception">weakref.ReferenceError</tt>. | |
172 | ||
173 | <P> | |
174 | </DD> | |
175 | <DT><STRONG>(3)</STRONG></DT> | |
176 | <DD>Only defined on Windows; protect code that uses this by testing that | |
177 | the preprocessor macro <code>MS_WINDOWS</code> is defined. | |
178 | </DD> | |
179 | </DL> | |
180 | ||
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