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。