Message116172
Sorry for forgetting about this for so long.
The attached patch makes the following changes:
Removes the two instances I noticed of treating exception instances as sequences. This no longer works in python 3 and is not very useful in python 2, so best avoided.
Adds a warning explaining ``except FooException, BarException:`` does not do what you might think. I think this is a good warning to have (because you *can* omit those parens in many other places) and it mentions the pre-python 2.6 syntax for "as" by side effect.
There are two things I'm not entirely happy about:
I initially wrote ``print "I/O error({0.errno}): {0.strerror}".format(e)``, but then noticed this string formatting trick is not mentioned in the previous chapter of the tutorial. Dict access (``"{0[foo]}".format(d)``) is, but attribute access is not. Is this worth adding to that chapter, so it can be used here?
Binding an exception instance to a variable (using "as") is explained near the bottom of the section on catching exceptions, well before it is used. Perhaps this could do with a bit of reordering? I felt it better to keep my initial patch more minimal though.
Comments? :) |
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Date |
User |
Action |
Args |
2010-09-12 11:24:03 | marienz | set | recipients:
+ marienz, eric.araujo, docs@python |
2010-09-12 11:24:03 | marienz | set | messageid: <1284290643.1.0.683496424344.issue8652@psf.upfronthosting.co.za> |
2010-09-12 11:24:01 | marienz | link | issue8652 messages |
2010-09-12 11:24:00 | marienz | create | |
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