Catch non-ValueError exceptions in decimal #636
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@amureki Looks good? |
amureki
approved these changes
Mar 13, 2018
| @@ -895,7 +899,7 @@ def _parse_numeric_token(self, tokens, idx, info, ymd, res, fuzzy): | |||
| elif idx + 2 < len_l and tokens[idx + 1] == ':': | |||
| # HH:MM[:SS[.ss]] | |||
| res.hour = int(value) | |||
| value = Decimal(tokens[idx + 2]) # TODO: try/except for this? | |||
| value = self._to_decimal(tokens[idx + 2]) # TODO: try/except for this? | |||
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Shall we remove TODO comment from here? Since we are covering this in _to_decimal.
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Well, _to_decimal can still raise a ValueError, and that TODO predates the switch to Decimal:
3b43612#diff-4b65e7edb2b73639d2d3360fa8d05343L935
That said, I don't really know what it refers to. I'll leave it in for now.
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Fixes #632.
This adds both function call overhead and exception catching overhead to the function. Based on running
%timeiton a few strings, the cost is on the order of a few microseconds out of 60-100 microseconds. If we can come up with a version that doesn't have to re-raise, that might be preferable.Also, we could theoretically add whatever errors
Decimalis raising into the huge try-except loop and handle it that way, but the documentation doesn't seem to clearly enumerate an exception hierarchy fordecimal.Decimal, so I'm not confident that we could catch the "root" exception easily.