Petri Lehtinen <[email protected]> added the comment:
I see one obvious issue with the patch: The ConversionErrors it creates are
passed the struct.error or TypeError instance as a parameter. The first
argument of these exceptions would be better, i.e.
try:
...
except struct.error as e:
raise ConversionError(e.args[0])
Furthermore, my ear thinks that raises_conversion_error would be a better name
for the decorator than raising_conversion_error.
Anyway, I think the whole ConversionError is a bit problematic, as either
TypeError or ValueError would be the most appropriate exception, depending on
the situation. For example:
p = Packer()
p.pack_int('foo') # should raise a TypeError
p.pack_int(2**100) # should raise a ValueError
This would be slightly harder to implement, though, as struct.error has exactly
the same problem.
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<http://bugs.python.org/issue11694>
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