Python货币转换器，float对象不是iterab

Question

currency_input = input('Enter GBP values (separated by whitespace): ')
currency_list = currency_input.split()

# arrays to store currencies and converted currencies
GBPvalues = []
convertedEuros = []
convertedDollars = []
convertedYen = []
convertedRupee = []

# stores GBP values in array GBPvalues
for x in currency_list:
    GBPvalues.append(int(x))

# function for converting GBP to euros
def euroConversion():
    for x in GBPvalues:
        euros = x * 114 / 100
        for e in euros:
            convertedEuros.append(euros)

# function for converting GBP to dollars
def dollarConversion():
    for x in GBPvalues:
        dollars = x * 134 / 100
        for d in dollars:
            convertedDollars.append(float(dollars))

# functions for converting GBP to yen
def yenConversion():
    for x in GBPvalues:
        yen = x * 15074 / 100
        for y in yen:
            convertedYen.append(float(dollars))

# functions for converting GBP to rupee
def rupeeConversion():
    for x in GBPvalues:
        rupee = x * 8614 / 100
        for r in rupee:
            convertedRupee.append(float(rupee))

# function to output the currency and converted currency
def conversionOutput():
    print('1. Euros')
    print('2. Dollars')
    print('3. Yen')
    print('4. Rupees')
    print('5. Exit')

    userInput = input()
    if userInput == '1':
        euroConversion()

        for i in range(10):
            print(GBPvalues[i] + convertedEuros[i])

        # adds up total of GBP and euros
        totalGBP = sum(GBPvalues)
        totalEuros = sum(convertedEuros)
        print(totalGBP)
        print(totalEuros)

    if userInput == '2':
        dollarConversion()

        for i in range(10):
            print(GBPvalues[i] + convertedDollars[i])

        # adds up total of GBP and dollars
        totalGBP = sum(GBPvalues)
        totalDollars = sum(convertedDollars)
        print(totalGBP)
        print(totalDollars)

    if userInput == '3':
        yenConversion()

        for i in range(10):
            print(GBPvalues[i] + convertedYen[i])

        # adds up total of GBP and yen
        totalGBP = sum(GBPvalues)
        totalYen = sum(convertedYen)
        print(totalGBP)
        print(totalYen)

    if userInput == '4':
        rupeeConversion()

        for i in range(10):
            print(GBPvalues[i] + convertedRupee[i])

        # adds up total of GBP rupee
        totalGBP = sum(GBPvalues)
        totalRupee = sum(convertedRupee)
        print(totalGBP)
        print(convertedRupee)

    if userInput == '5':
        System.exit()

conversionOutput()

所以我有一个货币转换器的代码，我正在尝试创建。我已经为此奋斗了一段时间，现在有几个不同的错误，其中大部分已经被整理出来，除了当我现在运行这个程序，我得到的错误：

'float' object is not iterable on the line 'for e in euros:', 'for d in dollars', for y in yen' and 'for r in rupee'.

我知道是什么导致了这个错误，我只是不知道我需要改变什么才能使这个程序完美地运行。这方面的任何帮助都会非常有用。你知道吗

Answer 1

因为euros是一个数字，而不是一个列表，我想你可以把英镑兑换成欧元：

def euroConversion():
    for x in GBPvalues:
        euros = x * 114 / 100
        convertedEuros.append(euros)
    # or
    convertedEuros += [x * 114 / 100 for x in GBPvalues]