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POExceptions where the exception handler is in a separate module
 

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    <p>Consider the following two modules, prog.py and err.py. both of which are examples of a much larger program that exhibits this problem. I need to separate out the functionality into smaller source files, each with a test bench.</p> <p>Err.py includes a test bench. When it creates a prog object, depending on how the exception is called, the exception is caught or not.</p> <p>It seems that even though prog.py imports err objects in a "from err import *" statement, the module name is still inferred (wrongly?), but seems the err it refers to is not the same one as the module itself </p> <p>Is this a bug in Python 2.7 or is it intended behaviour?</p> <p>simply get both files and run err.py to see what I mean..</p> <p>The first file:</p> <pre><code>#prog.py from err import * class prog(object): def func1(self): raise MySubError def func2(self): doError() </code></pre> <p>And the second file:</p> <pre><code>#err.py import prog import inspect import sys class myError(Exception): pass class MySubError(myError): pass def doError(): raise MySubError if __name__=="__main__": p=prog.prog() try: doError() except MySubError as er: print type(er) print "Captured 1" except Exception as er: print type(er) print "Not Captured 1" try: p.func1() except MySubError as er: print type(er) print "Captured 2" except Exception as er: print type(er) print "Not captured 2" try: p.func2() except MySubError as er: print type(er) print "Captured 3" except Exception as er: print type(er) print "Not captured 3" </code></pre> <p>It seems to me as though somehow err should know what module it is and the exception should be err.MySubError, rather than just MySubError. I can get the module, but not the instance.....</p> <p>Output:</p> <pre><code>&lt;class '__main__.MySubError'&gt; Captured 1 &lt;class 'test.MySubError'&gt; Not captured 2 &lt;class 'test.MySubError'&gt; Not captured 3 </code></pre>
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