零基础入门学习python第三十二讲

足迹

错误exception

详细见
Python 标准异常总结
http://bbs.fishc.com/thread-45814-1-1.html
(出处: 鱼C论坛)

主要错误
AssertionError

>>> a=['123']
>>> assert len(a)>0
>>> a.pop()
'123'
>>> assert len(a)>0
Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    assert len(a)>0
AssertionError

AtributeError

>>> a=[123]
>>> a.ser()
Traceback (most recent call last):
  File "<pyshell#5>", line 1, in <module>
    a.ser()
AttributeError: 'list' object has no attribute 'ser'

typeError

>>> 1+'1'
Traceback (most recent call last):
  File "<pyshell#6>", line 1, in <module>
    1+'1'
TypeError: unsupported operand type(s) for +: 'int' and 'str'

zeroDivitionError

>>> 2/0
Traceback (most recent call last):
  File "<pyshell#7>", line 1, in <module>
    2/0
ZeroDivisionError: division by zero
>>> 

IndexError

>>> a=[1,2,3]
>>> a[3]
Traceback (most recent call last):
  File "<pyshell#10>", line 1, in <module>
    a[3]
IndexError: list index out of range

NameError

>>> b
Traceback (most recent call last):
  File "<pyshell#11>", line 1, in <module>
    b
NameError: name 'b' is not defined

KeyError

>>> dict1={'one':1,'two':2,'three':3}]
>>> dict1['one']
1
>>> dict1['four']
Traceback (most recent call last):
  File "<pyshell#19>", line 1, in <module>
    dict1['four']
KeyError: 'four'