python - Cartesian product giving a dictionary -


i have following lists:

brand=["audi","mercedes"] speed=[130,150] model=["sport","family"]

i want obtain equivalent of:

ll=[] ll.append({'brand':'mercedes', 'speed':130, 'model':'family'}) ll.append({'brand':'mercedes', 'speed':130, 'model':'sport'}) ll.append({'brand':'audi', 'speed':130, 'model':'family'}) ll.append({'brand':'audi', 'speed':130, 'model':'sport'}) ll.append({'brand':'mercedes', 'speed':150, 'model':'family'}) ll.append({'brand':'mercedes', 'speed':150, 'model':'sport'}) ll.append({'brand':'audi', 'speed':150, 'model':'family'}) ll.append({'brand':'audi', 'speed':150, 'model':'sport'})

i do:

from itertools import product ll=list(product(speed, model, brand))

i have needed combinations list of list , not list of dictionary. don't know if there direct , pythonic way it!

zip values keys:

keys = 'brand', 'speed', 'model'  ll = [dict(zip(keys, combo)) combo in product(brand, speed, model)]

demo:

>>> itertools import product >>> pprint import pprint >>> brand = ["audi", "mercedes"] >>> speed = [130, 150] >>> model = ["sport", "family"] >>> keys = 'brand', 'speed', 'model' >>> [dict(zip(keys, combo)) combo in product(brand, speed, model)] [{'speed': 130, 'brand': 'audi', 'model': 'sport'}, {'speed': 130, 'brand': 'audi', 'model': 'family'}, {'speed': 150, 'brand': 'audi', 'model': 'sport'}, {'speed': 150, 'brand': 'audi', 'model': 'family'}, {'speed': 130, 'brand': 'mercedes', 'model': 'sport'}, {'speed': 130, 'brand': 'mercedes', 'model': 'family'}, {'speed': 150, 'brand': 'mercedes', 'model': 'sport'}, {'speed': 150, 'brand': 'mercedes', 'model': 'family'}] >>> pprint(_) [{'brand': 'audi', 'model': 'sport', 'speed': 130},  {'brand': 'audi', 'model': 'family', 'speed': 130},  {'brand': 'audi', 'model': 'sport', 'speed': 150},  {'brand': 'audi', 'model': 'family', 'speed': 150},  {'brand': 'mercedes', 'model': 'sport', 'speed': 130},  {'brand': 'mercedes', 'model': 'family', 'speed': 130},  {'brand': 'mercedes', 'model': 'sport', 'speed': 150},  {'brand': 'mercedes', 'model': 'family', 'speed': 150}]

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