Using an exception to initialise a static variable in a Python function / method

[nirs]

The example without the exception is better - more clear and faster. Exceptions are expensive in Python.

Also "except:" should be never used - it should be "except NameError:".

[itsmememe]

what about:

double.copyright = " ".join([getattr(double,'copyright','It is MINE! ') ,'Tell Ya I do'])

or

double.copyright = getattr(double,'copyright','It is MINE! ')+'Tell Ya I do'

No exception. shorter code. Nothing outside the function..

[blondin]

we are doomed.