confusing exception behavior in python

Question

I have some django code that resembles this (this is python 2.7.1)

try:
    a = some_model.objects.get(some_field='foo') #this could except if for some reason it doesn't exist
    method_that_throws_exception()    #it won't reach this if we get a DoesNotExist
except some_model.DoesNotExist:
    #if it doesn't exist create it then try again
    a = some_model.objects.create(....)
    try:
        method_that_throws_exception() #this time lets say another exception is raised by method
        print 'this should not print right?'
    except Exception as e:
        logging.error("error msg here")

The problem is the "this should not print" line is still being printed. I'm confused by this. I feel like I am probably overlooking something very simple but might be having some tunnel vision at the moment. Thanks in advance.

Update: also if I remove the nested try block the print below the call to the method that throws an exception still prints.

if the object exists, do you want to keep the exception raised by your method unhandled? — Aprillion
– Aprillion, Commented Jun 28, 2012 at 17:10

mikec · Accepted Answer · 2012-06-28 17:01:40Z

2

I figured it out, the method had a try block inside of it that Iw asn't raising out. adding raise in my exception handler inside the method_that_throws_exception() fixed my problem.

answered Jun 28, 2012 at 17:01

mikec

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