On 23/08/2012 12:01, Laszlo Nagy wrote:
def safe(deferred, default=42, exception=Exception):
... try:
... return deferred()
... except exception:
... return default
What a beautiful solution! I was wondering if the following would be
possible:
def test(thing, default, *exc_classes):
try:
thing()
except *exc_classes:
return default
But it is syntactically invalid.
Here is a workaround that is not so beautiful:
def test(thing, default, *exc_classes):
try:
thing()
except Exception, e:
for cls in exc_classes:
if isinstance(e,cls):
return default
raise
print test( (lambda: 1/0), -1, ValueError, ZeroDivisionError) # prints -1
The 'except' clause accepts a tuple of exception classes, so this works:
def test(thing, default, *exc_classes):
try:
thing()
except exc_classes:
return default
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