对Python中内置异常层次结构详解

如下所示：

BaseException
 +-- SystemExit
 +-- KeyboardInterrupt
 +-- GeneratorExit
 +-- Exception
  +-- StopIteration
  +-- StandardError
  | +-- BufferError
  | +-- ArithmeticError
  | | +-- FloatingPointError
  | | +-- OverflowError
  | | +-- ZeroDivisionError
  | +-- AssertionError
  | +-- AttributeError
  | +-- EnvironmentError
  | | +-- IOError
  | | +-- OSError
  | |   +-- WindowsError (Windows)
  | |   +-- VMSError (VMS)
  | +-- EOFError
  | +-- ImportError
  | +-- LookupError
  | | +-- IndexError
  | | +-- KeyError
  | +-- MemoryError
  | +-- NameError
  | | +-- UnboundLocalError
  | +-- ReferenceError
  | +-- RuntimeError
  | | +-- NotImplementedError
  | +-- SyntaxError
  | | +-- IndentationError
  | |   +-- TabError
  | +-- SystemError
  | +-- TypeError
  | +-- ValueError
  |   +-- UnicodeError
  |    +-- UnicodeDecodeError
  |    +-- UnicodeEncodeError
  |    +-- UnicodeTranslateError
  +-- Warning
   +-- DeprecationWarning
   +-- PendingDeprecationWarning
   +-- RuntimeWarning
   +-- SyntaxWarning
   +-- UserWarning
   +-- FutureWarning
  +-- ImportWarning
  +-- UnicodeWarning
  +-- BytesWarning

想要捕获所有的异常，可以直接捕获 Exception 即可：

try:
 ...
except Exception as e:
 ...
 log('Reason:', e)  # Important!

这个将会捕获除了 SystemExit 、 KeyboardInterrupt 和 GeneratorExit 之外的所有异常。 如果你还想捕获这三个异常，将 Exception 改成 BaseException 即可。

以上这篇对Python中内置异常层次结构详解就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。