It's not actually that weird when you think about it. The loop is not causing
an error because you are asking it not to raise one. One should be very
cautious about using a blanket statement "try...except: pass" in code. It makes
it very very hard to debug problems when they are nested in your code. When you
use try..except, you should be catching specific exceptions that you know could
be raised, and that you want to handle.
selected = cmds.ls(sl=1)
for objects in selected:
try:
cmds.SeparatePolygon(objects)
except:
pass
If `cmds.SeparatePolygon(objects)` fails for any reason whatsoever, you are
catching that exception and simply ignoring it. The result is it would fly
through the loop and you don't really know what happened with each operation.
Let's assuming you had some critical steps that had to happen one after the
next:
#
try:
setup_something_important()
except:
pass
do_something_with_the_setup()
#
You would never know that the setup failed, and would move right on to the next
part that relied on the previous steps success.
Trivial example:
try:
my_val = 1/0
except ZeroDivisionError, e:
print "We failed to divide the numbers with error: %s" % e
my_val = 10
We know that our operation could potentially divide by zero, so we catch that
kind of exception, warn, and set some default value. The point is that we
actually are specifically handling an exceptional case.
Hope that help!
-- justin
On Nov 21, 2012, at 6:04 AM, Daz wrote:
> Heya
>
> Got rather weird problem I thought it would go without problems but it get
> stuck on 1st object it try to edit.
>
> In any case trying to separate all selected objects and I get no error/good
> result. It fails on 1st object and ignore rest...
>
> http://pastebin.com/7kz3YfiG
>
> Any hints why I'm hitting a wall with it ? :/
>
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