Object-oriented philosophy

Fri Sep 7 16:48:39 EDT 2018

On 2018年09月07日 21:08, Michael F. Stemper wrote:
> On 2018年09月07日 14:51, Michael F. Stemper wrote:
>> On 2018年09月06日 16:00, MRAB wrote:
>>> On 2018年09月06日 21:24, Michael F. Stemper wrote:
>>>> A word of advice: don't use a "bare" except, i.e. one that doesn't
>>> specify what exception(s) it should catch.
>>> In another case where I had a "bare exception", I was using it to see if
>> something was defined and substitute a default value if it wasn't. Have
>> I cleaned this up properly?
>>>> try
>> id = xmlmodel.attrib['name']
>> except KeyError:
>> id = "constant power"
>> Never mind! After I continued testing, I realized that the above
> should have been written as:
>> if 'name' in xmlmodel.attrib:
> id = xmlmodel.attrib['name']
> else:
> id = "constant power"
>> <facepalm>
>That's actually _less_ Pythonic.
Have a look at the entries "EAFP" and "LBYL" here:
https://docs.python.org/3/glossary.html