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Python's standard exception class hierarchy.
Exceptions found here are defined both in the exceptions module and the built-in namespace. It is recommended that user-defined exceptions inherit from Exception. See the documentation for the exception inheritance hierarchy.
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ArithmeticError Base class for arithmetic errors. |
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AssertionError Assertion failed. |
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AttributeError Attribute not found. |
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BaseException Common base class for all exceptions |
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DeprecationWarning Base class for warnings about deprecated features. |
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EOFError Read beyond end of file. |
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EnvironmentError Base class for I/O related errors. |
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Exception Common base class for all non-exit exceptions. |
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FloatingPointError Floating point operation failed. |
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FutureWarning Base class for warnings about constructs that will change semantically in the future. |
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GeneratorExit Request that a generator exit. |
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IOError I/O operation failed. |
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ImportError Import can't find module, or can't find name in module. |
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ImportWarning Base class for warnings about probable mistakes in module imports |
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IndentationError Improper indentation. |
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IndexError Sequence index out of range. |
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KeyError Mapping key not found. |
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KeyboardInterrupt Program interrupted by user. |
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LookupError Base class for lookup errors. |
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MemoryError Out of memory. |
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NameError Name not found globally. |
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NotImplementedError Method or function hasn't been implemented yet. |
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OSError OS system call failed. |
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OverflowError Result too large to be represented. |
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PendingDeprecationWarning Base class for warnings about features which will be deprecated in the future. |
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ReferenceError Weak ref proxy used after referent went away. |
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RuntimeError Unspecified run-time error. |
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RuntimeWarning Base class for warnings about dubious runtime behavior. |
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StandardError Base class for all standard Python exceptions that do not represent interpreter exiting. |
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StopIteration Signal the end from iterator.next(). |
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SyntaxError Invalid syntax. |
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SyntaxWarning Base class for warnings about dubious syntax. |
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SystemError Internal error in the Python interpreter. |
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SystemExit Request to exit from the interpreter. |
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TabError Improper mixture of spaces and tabs. |
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TypeError Inappropriate argument type. |
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UnboundLocalError Local name referenced but not bound to a value. |
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UnicodeDecodeError Unicode decoding error. |
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UnicodeEncodeError Unicode encoding error. |
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UnicodeError Unicode related error. |
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UnicodeTranslateError Unicode translation error. |
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UnicodeWarning Base class for warnings about Unicode related problems, mostly related to conversion problems. |
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UserWarning Base class for warnings generated by user code. |
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ValueError Inappropriate argument value (of correct type). |
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Warning Base class for warning categories. |
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ZeroDivisionError Second argument to a division or modulo operation was zero. |
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