Question

我试图在一秒钟内添加第一个字典的最大键，但是当我运行它时，显示sack{}的语法错误。我似乎无法弄清楚为什么会出现这种错误。任何人都可以解释错误是什么？谢谢。

守则如下：

#!/usr/bin/python3
import sys

def vault(dataFile):
    gem = []
    weight = []
    value = []
    valPerCarat = []    
    for l in dataFile.readlines():      
        attribute = l.split(",")
        gem.append(str(attribute[0]))
        weight.append(float(attribute[1]))
        value.append(int(attribute[2]))
        valPerCarat.append(int(attribute[2])/float(attribute[1]))
    booty = theft_preparation(gem, valPerCarat)
    return (booty)  

    #return(gem, weight, value, valPerCarat)

def theft_preparation(gem, valPerCarat):
    loot = dict(zip(gem, valPerCarat)
    sack = {}
    precious = 0
    while (precious =< 5.00):
        max (loot, key=loot.get)
        precious = dict.get(key, default=None)
        precious +=precious
        sack.update(key)        
        del(key)

    return (sack)


def main():
    fileFound = False
    while not fileFound:
        fileName = input("File name containing jewel data: ")
        try:
            dataFile = open(fileName, "r")
            fileFound = True

        except:
            print("Could not find that file -- try again")
    knapsackCapacity = 5.00 
    print (vault(dataFile))


main()

Answer 1

您错过了上一行的右括号：

loot = dict(zip(gem, valPerCarat)
                                 ^ HERE

试图将max key添加到另一个字典中的字典错误

1 个答案: