Try/Except vs Exception handling

try:
  foo()
except:
  pass

or

try:
  foo()
except Exception:
  pass

Difference is that the first will catch everything including OsError, KeboardInterrupt, SystemExit which are derived from BaseException instead of Exception class.

More documentation for details:

try statement — http://docs.python.org/reference/compound_stmts.html#try
exceptions — http://docs.python.org/library/exceptions

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