How to create a new list from other two lists, apply a function and append the output to each list?

Question

thank you in advance for the help.

I need to retrieve some data (clients and products) from a WebService. This code gets the data and transforms it into lists with dictionaries within them.

    consumidores = requests.get(url + 'all_consumers', headers=custom_header)  # lista
    con = consumidores.json()
    productos = requests.get(url + 'all_products', headers=custom_header)  # lista
    prod = productos.json()

    c = []

    for key in con:
        c = [key['genero'], key['complexion'], key['tallaCamisa'], key['tallaPantalon'], key['edad'], key['ubicacion'],
         key['valorComercial'], key['valorCompra']]

    p = []
    for index in prod:
        p = [index['genero'], index['precio']]

Whats I need to do is to create two lists, one for costumers and one for products. Choose some specific elements for each costumer and product and create a new list that have to look like this

new_list = [[costumer_1, costumer_element1, costumer_element2 , ... , product_1, product_element1, product_element2, ...], [costumer_1, costumer_element1, ..., product_1, product_element1, ...], [costumer_2, costumer_elementn, ... product_1, product_element1 ,...] , ...]

Then apply a function that will relate costumers with products and append the result to the list that produced that output:

results = [[costumer_1, costumer_element1, costumer_element2 , ... , product_1, product_element1, product_element2, RESULT], etc]

    for key in con:
    index=0
    param_relcp = c[index][key['genero'],key['edad']]
    index=index + 1

This returns an error: IndexError: list index out of range and using this

c = []
for key in con:
    c = [key['genero'], key['complexion'], key['tallaCamisa'], key['tallaPantalon'], key['edad'], key['ubicacion'],
         key['valorComercial'], key['valorCompra'], key['id']]

Only takes the elements only from the first one of the list of lists. Any help will be appreciated.

Answer 1

Your loops all appear to do nothing, eg

for key in con:
    c = [key['genero'], key['complexion'], key['tallaCamisa'], key['tallaPantalon'], key['edad'], key['ubicacion'],
         key['valorComercial'], key['valorCompra']]

replaces c every time, and you only get the last value from the last time through the loop. You do the same for p and the same for param_relcp .

Either:

c = []
for key in con:
    c.append([key['genero'], key['complexion'], key['tallaCamisa'], key['tallaPantalon'], key['edad'], key['ubicacion'],
             key['valorComercial'], key['valorCompra']])

or

c = [[key['genero'], key['complexion'], key['tallaCamisa'], key['tallaPantalon'], key['edad'], key['ubicacion'],
             key['valorComercial'], key['valorCompra'] for key in con]

and the same for the others.