Exceptions have a .args
attribute which is a tuple; for a KeyError
exception that tuple contains the key that triggered the exception:
>>> try:
... {}['foo']
... except KeyError as ex:
... print(ex.args[0])
...
foo
Domanda
Is there a way to get the key that raised a KeyError
?
or in general, where can I find (if available) properties of an Exception
?
Soluzione
Exceptions have a .args
attribute which is a tuple; for a KeyError
exception that tuple contains the key that triggered the exception:
>>> try:
... {}['foo']
... except KeyError as ex:
... print(ex.args[0])
...
foo
Altri suggerimenti
Script:
d = dict(a=1)
try:
d['b']
except KeyError as e:
print e
Output:
'b'