multiprocessing.pool.map and function with two arguments

Question

I am using multiprocessing.Pool()

here is what i want to Pool:

def insert_and_process(file_to_process,db):
    db = DAL(\"path_to_mysql\         


        

Answer 1

No need to use zip. If for example you have 2 parameters, x and y, and each of them can get several values, like:

X=range(1,6)
Y=range(10)

The function should get only one parameter, and unpack it inside:

def func(params):
    (x,y)=params
    ...

And you call it like that:

params = [(x,y) for x in X for y in Y]
pool.map(func, params)