Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Zachary Ware <zachary.ware+pylist@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: Slice equivalent to dict.get
Date: Thu, 31 Mar 2016 14:28:47 -0500
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Xref: csiph.com comp.lang.python:106180

On Thu, Mar 31, 2016 at 12:51 PM, Terry Reedy <tjreedy@udel.edu> wrote:
> On 3/31/2016 11:24 AM, Peter Otten wrote:
>> try...except to the rescue:
>>
>>>>> def get(seq, index, default=None):
>>
>> ...     try: return seq[index]
>> ...     except IndexError: return default
>
>
> Replace IndexError with (IndexError, KeyError) and the functions works with
> any subscriptable that raises either exception.

Or use the superclass of both of those, LookupError, and also catch
anything that uses that more generic name as well.

-- 
Zach