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