[Python-Dev] A Hygienic Macro System in Python?
Barry A. Warsaw
barry@zope.com
2002年3月19日 21:08:52 -0500
>>>>> "BH" == Bernhard Herzog <bh@intevation.de> writes:
| doc.BeginTransaction()
| try:
| try:
| something()
| except:
| # an error occurred part way through. make sure everything
| # is reverted (sort of a rollback)
| doc.AbortTransaction()
| finally:
| doc.EndTransaction()
Interesting. I have similar idioms that I use, except that I
invariably would add bare raise after the AbortTransaction().
Neat idea though, that the under statement takes object conforming to
a particular (little `i' :) interface. That seems nicely Pythonic to
me.
-Barry