Ok my thoughts was that python is such an elegant language, a process that
could add a non static value (a callable or generator for example) to a
function's default parameter would add more elegance to the default handling.
what a decorator and a helper function do is to double the amount of functions
to make one function. So in order to understand such a function, the reader
has to understand 2 functions. In that case the reader would be better off with
the normal.
if curr_time == None:
curr_time = datetime.datetime.now()
you might say that the reader has to understand what datetime.datetime.now()
but there is no surprises with that function.
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