[Python-ideas] Use `isinstance` check during exception handling

[Michael Selik]

I think with good reason. It's impossible to enumerate all possible ways a
program can error. Eventually one must fall back to inspecting various
error payload information and perhaps even other state. Increasing error
granularity is a slippery slope. The shift should be driven by evidence of
annoying boilerplate code written in the standard library and major
community projects.

On Thu, Nov 5, 2015 at 3:13 AM Sjoerd Job Postmus <sjoerdjob at sjec.nl> wrote:

> Definitely not! PEP3151 was just meant as an example of an improvement of
> exception granularity taking a long time.
>
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