Benji York wrote: > Madhusudan Singh wrote: >> I know how to set optional arguments in the function definition. Is there >> an intrinsic function that determines if a certain argument was actually >> passed ? Like the fortran 95 present() logical intrinsic ? > > People generally use a value that isn't a valid option, often None. > > def my_func(a, b, c=None): > if c is None: > do something > > If None is a valid value, make one that isn't: > > unspecified = object() > > def my_func(a, b, c=unspecified): > if c is unspecified: > do something > -- > Benji York
Now, that was a very good suggestion. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
