在新函数中调用函数

Question

我有一个函数：

def get_translations(string):
    """stuff"""
    list1 = []
    empty = []
    lines = string.splitlines()
    order = 1 if string.split(',')[0] == "english" else -1
    
    if 'english,māori' in string:
        for seperate_words in lines:
            list1.append(tuple(seperate_words.split(",")[::order]))
        return list1[1:]
    
    if 'māori,english' in string:
        for seperate_words in lines:
            list1.append(tuple(seperate_words.split(",")[::order]))
        return list1[1:]    
    
    else:
        print("Header language not recognized!")
        return empty

我正在尝试在新函数 get_translations_from_file 中调用此函数，以便执行第一个函数的意图。这是因为我试图打开一个文件并将该文件用作第一个函数的字符串。这是我尝试调用的第一个函数，但没有成功：

def get_translations_from_file(filename):
    """stuff"""
    file = open(filename)
    string = file.read()
    get_translations(string)

测试是：

filename = 'places.txt'
for terms in get_translations_from_file(filename):
    print(terms)

文件内容为：

english,māori
New Zealand,Aotearoa
North Island,Te Ika-a-Māui
South Island,Te Waipounamu
Wellington,Te Whanganui a Tara
Christchurch,Ōtautahi
Hamilton,Kirikiriroa
Auckland,Tāmaki Makaurau

Answer 1

您正在调用get_translations，但忽略了返回值。由于get_translations_from_file 没有明确的return 语句，它隐式返回None。长话短说，你需要从get_translations返回值：

def get_translations_from_file(filename):
    """stuff"""
    file = open(filename)
    string = file.read()
    return get_translations(string) # Here!