Leon wrote:
One way, define the object before it is used,
like this:
object = None
This is a good practice anyway. Conditional existance of objects is
quite evil. Resorting to if defined('foo') is double-plus-ugly.
The other way, using try ... catch
try:
object.method()
catch NameError:
pass
Except you should trap AttributeError because you defined the thing as
None before. NameErrors should be fixed as bugs, not trapped (IMHO --
but in python there is always a use case for everything).
Keep in mind that AttributeError might come from inside the method(),
which could be confusing
By using the
if stuff:
stuff.run()
idiom, you avoid the last issue and keep it simple enough.
for big programs, which is better, or any other way?
Define "big", as in scope, LOCs, or number of committers?
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