[issue21227] Decimal class error messages for integer division aren't good
Stefan Krah
report at bugs.python.org
Thu Apr 17 01:17:35 CEST 2014
Stefan Krah added the comment:
The idea behind the list as the exception message is this: If multiple
conditions would have raised the signal they are all listed, while the
"highest ranking" signal is the one that is ultimately raised.
>>> from decimal import *
>>> c = getcontext()
>>> for v in c.traps:
... c.traps[v] = True
...
>>>
>>> Decimal(8) ** 1000000000000000
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
decimal.Overflow: [<class 'decimal.Overflow'>, <class 'decimal.Inexact'>, <class 'decimal.Rounded'>]
Exception precedence is listed here at the bottom of the page:
http://speleotrove.com/decimal/daexcep.html
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<http://bugs.python.org/issue21227>
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