dmiller 8b70dfa0a4 Replace exception-as-flow-control pattern ...

In general, it's better to use explicit flow control than to throw
and/or catch generic exceptions. Example:

try:
    thing = d["key"]
except:
    pass

This 1. catches an inspecific exception (probably KeyError), 2. can be
replaced with a check for ("key" is in d), and 3. can often be replaced
with d.get("key", some_default_value).

2014-01-13 15:37:39 +00:00

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