andrew cooke wrote:
R. David Murray wrote:
[...]
try:
dimensions.append(float(s))
except:
dimensions.append(float(quantization[s]))
No, no, no; never use a bare except! :)
can you explain why? i can't think of any reason why the code would be
better catching a specific exception.
as a general rule, maybe, but in this particular case i can't see a reason
- so i'm not sure if you're just pedantically following rules or if i've
missed something i should know.
A bare exception will catch _any_ exception, even those you didn't
expect (technical term: "bug" :-)); for example, if you had written:
try:
dimension.append(float(s))
except:
dimensions.append(float(quantization[s]))
it would silently catch "NameError: name 'dimension' is not defined" and
perform the fallback action.
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