[Tutor] try except block for multiple statements

[Bryan Fodness]

I would like to use a try except to see if a value exists.  But, when I use
the following, if a does not exist it exits.  I understand why this does
this, but is there a way to get b,c, and d if a does not exist without using
a try except for every statement?

try:
    fo.write("a = %s\n" %plan.a)
    fo.write("b = %s\n" %plan.b)
    fo.write("c = %s\n" %plan.c)
    fo.write("d = %s\n" %plan.d)
except AttributeError:
    pass

-- 
"Any intelligent fool can make things bigger, more complex, and more
violent. It takes a touch of genius - and a lot of courage - to move in the
opposite direction. "  -Albert Einstein
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