#41 General cleanups to db.py

[John Eikenberry]

General cleanups to db.py.

• Moved all imports to top.
• Removed unused imports.
• Removed deprecated string module references. Change to use new string methods.
• Corrected catchall except: to be more specific where I could (only one place for now).

[John Eikenberry]

[Andy Dustman]

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Can't apply this one

[Andy Dustman]

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Your patch, or a variation, has been applied to the current CVS tree.