python 3.x - Assigning int values to each dictionary entry as well as having reference numbers? -


i'm trying create dictionary in python 3 holds 12 different names, first 7 must have value of 8.50, last 5 13.50 possible assign them int values? have tried find answers through google etc either i'm not wording questions right or it's not possible. @ moment i'm using:

pizza_dict = {"0: basic cheese $8.50", "1: pepperoni $8.50"}

but can not find way give them int values if possible?

use {}.fromkeys():

>>> {}.fromkeys(['1','2','3'],8.5) {'1': 8.5, '3': 8.5, '2': 8.5}

for example:

>>> mydict={} >>> mydict.update({}.fromkeys(['1','2','3'],8.5)) >>> mydict {'1': 8.5, '3': 8.5, '2': 8.5} >>> mydict.update({}.fromkeys(['4', '5', '6'],13.5)) >>> mydict {'1': 8.5, '3': 8.5, '2': 8.5, '5': 13.5, '4': 13.5, '6': 13.5}

just don't use mutable argument (like list) because same 1 each key.

surprising things can happen mutable:

>>> di={}.fromkeys([1,2,3],[]) >>> di[1].append('what?') >>> di {1: ['what?'], 2: ['what?'], 3: ['what?']}

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