How can I ignore all java.io exception?

Question

I use these code in my jython script

 try: my_func() except Exception as e: print e pass

But I still get exception such as

java.io.FileNotFoundException: java.io.FileNotFoundException: ./filename (No such file or directory)

or

java.io.EOFException: java.io.EOFException

How can I catch all these java exceptions in jython?

Env info:

jython version 2.7.1

java runtime 10.0.2

Alex · Accepted Answer · 2018-10-29 08:48:33Z

2

Java exceptions in Jython are not derived from Python's Exception class. To catch them separately from Python exceptions import java.lang.Exception with some local name not overlapping with standard Exception and add another except clause:

from java.lang import Exception as JException try: my_func() except Exception as e: print "python ex", e except JException as ex: print "java ex", ex

edited Oct 29, 2018 at 8:48

answered Oct 26, 2018 at 7:18

Alex

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4 Comments

jcubic Over a year ago

Please explain why this solution work, answers with only code may be deleted.

Jean-François Fabre Over a year ago

this only works with python 2 because of the old print syntax, and old exception syntax. Consider upgrading to new syntax (which also works with python 2.7). OP has used except Exception as e. There's potential in your answer, but add some explanation and make it python 3 compliant.

Alex Over a year ago

@jcubic okay, added an explanation.

Alex Over a year ago

@Jean-François Fabre as you may know the latest Jython version is 2.7.1; considering the project activity Jython 3.5 will never be released.

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