功能列表练习：列表中的列表不打印

Question

我被要求创建3个函数来创建Vet Records。我必须使用2个函数分别验证Integer输入和String Input。我已经完成了大部分代码，但最后一部分在运行代码时没有打印出来。我的代码如下：

def getNewVetRecord():  
    getNewVetRecord=[]    
    return getNewvetRecord

def getValidInteger():   
    Ask_for_value = True  
    while(Ask_for_value == True):
        try:
            ID = int(input("Pet ID: "))
            Ask_for_value = False
        except ValueError:
            print("Please enter a valid integer")

    return ID

def getValidString(): 
    Ask_for_value = False
    Input_String = ("")
    while(Ask_for_value == False):
        Input_String = input("Pet Name: ")
        Ask_for_value = Input_String.isalpha()
        if(Ask_for_value == False):
            print("Please enter a valid name")          
    return Input_String

def func():
    stringValue = getValidString();
    integerValue = getValidInteger();
    species = input("species:")
    ownername = input("owner first name:")
    owner_last_name = input("owner last name:")
    x=[]
    x.append(stringValue)
    x.append(integerValue)
    x.append(species)
    x.append(ownername)
    x.append(owner_last_name)
    return x

def main():
    x=[]      
    x.append(func())
    x.append(func())
    x.append(func())
    print( 'ID  Pet Name   Species\tOwner Name' )
    print( '--  --------   -------\t----------' )
    getVetRecord=[]

    for x in getVetRecord:
        for ind in x:
            print(format(getVetRecord[1][ind], "3d"), format(getVetRecord[2][ind]+"", "11s"), format("", "1s"),\
                  format(getVetRecord[3][ind]+"", "10s"),  format("", "2s"), getVetRecord[5][ind],',', getVetRecord[4][ind])


main()

它正确地执行了重要的部分，（验证和输入），但它没有打印答案。

It shows the following when I run the code