[openstack-dev] [Review] Use of exception for non-exceptional cases
nachi at ntti3.com
Wed Jul 10 18:01:45 UTC 2013
I would like to ask the review criteria in the community.
Should we use exception for non-exceptional cases when we can use
Example1: Default value for array index
value = list
value = 'default_value'
This can be also written as,
list_a if len(list_a) > 3 else 'default_value'
"ask for forgiveness, not permission" is one of way in python,
however, on the other hand, google python code style guide says,
Minimize the amount of code in a try/except block. The larger the body
of the try, the more likely that an exception will be raised by a line
of code that you didn't expect to raise an exception. In those cases,
the try/except block hides a real error.
Personally, I prefer not to use exception for such cases.
More information about the OpenStack-dev