How does Python’s comma operator work during assignment?
I was reading the assignment statements in the Python docs ( http://docs.python.org/reference/simple_stmts.html#assignment-statements).
variable-assignment
What does an ‘x = y or z’ assignment do in Python?
Why do we see Python assignments with or? For example: def my_function(arg_1=None, arg_2=0): determination = arg_1 or arg_2 or 'no arguments given!' print(determination) return determination When called with no arguments, the above function would print and return ‘no arguments given!’ Why does Python do this, and how can one best make best use of this … Read more
assigning class variable as default value to class method argument
I would like to build a method inside a class with default values arguments taken from this class. In general I do filtering on some data. Inside my class I have a method where normally I pass vector of data. Sometimes I don’t have the vector and I take simulated data. Every time I do not pass a particular vector I would like to take simulated data by default. I thought it should be an easy construction where inside my method definition I say a=self.vector. But for some reason I have an error NameError: name 'self' is not defined. The simplified construction is: