multiple-variable-return

I know that it is possible for a function to return multiple values in Python. What I would like to do is return each element in a list as a separate return value. This could be an arbitrary number of elements, depending on user input. I am wondering if there is a pythonic way of doing so? For example, I have a function that will return a pair of items as an array, e.g., it will return [a, b] . However, depending on the input given, the function may produce multiple pairs, which will result in the function returning [[a, b], [c, d], [e, f]] . Instead, I would like it to return [a, b], [c, d],

I want to give a parameter to a method and i want my method to return data by looking the parameter. Data can be in type of boolean, string, int or etc. How can i return a variable type from a method? I don't want to return an object type and then cast it to another type. For example: BlaBla VariableReturnExampleMethod(int a) { if (a == 1) return "Demo"; else if (a == 2) return 2; else if (a == 3) return True; else return null; } The reason why i want that is i have a method that reads a selected column of a row from the database. Types of columns are not same but i have to return every column

Does Python have any equivalent of nargout in MATLAB? I find nargout a very neat approach if we want to keep the number of return parameters flexible. Is there a way I can find out how many output parameters have been requested? Something like the following pseudo-python-code: def var_returns_func(a): """ a is a 1D numpy array """ if nargout==1: return a.sum() elif nargout==2: return a.sum(),a.std() So if I call this function as mean = var_returns_func(someNumPyarray) , it should return a single value. But if I call it as mean,std = var_returns_func(someNumPyarray) , it should return 2 values.