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• Compiling J2EE Webapp with Tomcat 5.5 libraries and deploying on Tomcat 6.

  - by LeeMobile

  I have a Struts2 webapp, in which I compiled using the Tomcat 5.5 libraries. If I deploy this webapp on a Tomcat 6 server, should it still work without a hitch?

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• Python: if key in dict vs. try/except

  - by LeeMobile

  I have a question about idioms and readability, and there seems to be a clash of Python philosophies for this particular case: I want to build dictionary A from dictionary B. If a specific key does not exist in B, then do nothing and continue on. Which way is better? try: A["blah"] = B["blah"] except KeyError: pass or if "blah" in B: A["blah"] = B["blah"] "Do and ask for forgiveness" vs. "simplicity and explicitness". Which is better and why?

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