Python文法詳解

185

5.5　例外処理

... raise ValueError('



')

... except Exception as e:

... raise #

元々の例外を再送出

...

>>> spam()

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "<stdin>", line 3, in spam

ValueError:

不正な値です

5.5.3

　例外の連結

例外の処理中にも、さまざまな理由から、別の例外が発生する場合があります。

>>> def spam():

... try:

... raise ValueError('



')

... except Exception as e:

... 1/0

...

>>> spam()

Traceback (most recent call last):

File "<stdin>", line 3, in spam

ValueError:

不正な値です

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "<stdin>", line 5, in spam

ZeroDivisionError: division by ...