Python - 从列表中删除单词

Question

大家好我是编码python的新手，我正在制作英语到西班牙语，以及西班牙语到英语的翻译。我已设法使用，因此用户可以添加单词，如果他们输入该单词，它也将翻译它。但是，我希望用户也能删除单词。我得到了它的工作，所以如果他们在列表中输入一个英文单词，它将删除该英文单词及其西班牙语翻译。但是，有人可以帮助我，所以我可以这样做，如果他们输入一个西班牙语单词，它会删除西班牙语单词及其英语翻译（因为我希望它以相反的方式工作）。现在它只有在键入列表中的英文单词时才有效。

非常感谢任何帮助。

english_list = ["fire","apple","morning","river","wind","penguin","egg","money","pen","game","book","night","ball","laugh","boat","friend","orange","teacher","water","dog","tree","grass","chair","clock","time"]
spanish_list = ["fuego","manzana","manana","rio","viento","pinguino","huevo","dinero","pluma","juego","libro","noche","bola","risa","barco","amigo","naranja","profesor","aqua","perro","arbol","hierba","silla","relog","tiempo"]
english_to_spanish = dict(zip(english_list, spanish_list))
spanish_to_english = dict(zip(spanish_list, english_list))
#Functions
def translate(word):
    translation = english_to_spanish.get(word)
    if translation:
        print("That in Spanish is: ")
        return translation
    else:
        translation = spanish_to_english.get(word)
        if translation:
            print("That in English is:")
            return translation
        else:
            return "That wasn't a option"

def add(word):
    global english_to_spanish
    global spanish_to_english
    newword = input("Please enter the word you would like to add")
    english_list.append(newword)
    print("The word '%s' has been added to the English List, enter 'show' to see." %(newword))
    newword = input("Please enter the Spanish translation of that word")
    spanish_list.append(newword)
    english_to_spanish = dict(zip(english_list, spanish_list))
    spanish_to_english = dict(zip(spanish_list, english_list))
    print("This word '%s' has been added to the Spanish List, enter 'shows' to see." %(newword))


def remove(word):
    removeword = input("Please enter the word you would like to remove")
    index = english_list.index(removeword)
    spanishword = spanish_list[index]
    english_list.remove(removeword)
    spanish_list.remove(spanishword)
    del (english_to_spanish[removeword])
    del (spanish_to_english[spanishword])
    print("The word '%s' and '%s' has been removed from the English and Spanish list, enter 'show' to see." %(removeword, spanishword))


def showhelp():
    print("""
In this dictionary you will have few options:
You can enter:
    'add' to add a new word
    'remove' to remove a word
    'show' to view either of the word lists
    'help' to get help
    'end'/'exit' to exit
    or you can type in a word to translate it
    """)

def viewwordlist():
    if word == 'show':
        wordlist = input("""
    Type 'English' to view the English word list
    Type 'Spanish' to view the Spanish word list
    Type 'Both' to view both of the word lists
    """)
        if wordlist == 'english':
            print("Here is the current English word list:")
            print(english_list)
        elif wordlist == 'spanish':
            print("Here is the current Spanish word list:")
            print(spanish_list)
        elif wordlist == 'both':
            print("Here is both the current English and Spanish word list:")
            print("Current English list:")
            print(english_list)
            print("Current Spanish list:")
            print(spanish_list)
        else:
            print("Sorry, that wasn't a option. If you need some assistant please enter 'help'")

#Main program
name = input("What is your name?").lower()
print("Welcome %s, to the English <--> Spanish Dictionary" % name)
showhelp()

while True:
    word = input("> ")
    #Adding a word
    if word == 'add':
        add(word)
    #Remove a word
    elif word == 'remove':
        remove(word)
    #Print in help
    elif word == 'help':
        showhelp()
    #Exiting
    elif word == 'end' or word == 'exit':
        print("Thanks %s for using the English <--> Spanish dictionary" % name)
        break
    #Printing word lists
    elif word == 'show':
        viewwordlist()
    else:
        print(translate(word))

Answer 1

嗯，你的方法有很多瑕疵，但如果你只需要保存一天，这就是你能做的。简单地说，对于西班牙语，你可以重复你为英语做的事。假设给定的单词可以使用不同含义的两种语言，则应检查两个列表并从两者中删除该单词。

def remove(word):
    removeword = input("Please enter the word you would like to remove")
    remove_english_word(removeword)
    remove_spanish_word(removeword)

def remove_english_word(removeword):
    try:
        index = english_list.index(removeword)
        spanishword = spanish_list[index]
        english_list.remove(removeword)
        spanish_list.remove(spanishword)
        del (english_to_spanish[removeword])
        del (spanish_to_english[spanishword])
        print("The word '%s' and '%s' has been removed from the English and Spanish list, enter 'show' to see." %(removeword, spanishword))
    except ValueError, e:
        pass # In this case the word doesn't exist in english_list

def remove_spanish_word(removeword):
    try:
        index = spanish_list.index(removeword)
        englishword = english_list[index]
        spanish_list.remove(removeword)
        english_list.remove(englishword)
        del (spanish_to_english[removeword])
        del (english_to_spanish[englishword])

        print("The word '%s' and '%s' has bee removed from the Spanish and English list, enter 'show' to see." %(removeword, englishword))
    except ValueError, e:
        pass # In this case the word doesn't exist in spanish_list

Answer 2

您可以按照以下方式修改remove方法

def remove(word):
    removeword = input("Please enter the word you would like to remove")
    try:
        index = english_list.index(removeword)
        spanishword = spanish_list[index]
        english_list.remove(removeword)
        spanish_list.remove(spanishword)
        del (english_to_spanish[removeword])
        del (spanish_to_english[spanishword])
        print("The word '%s' and '%s' has been removed from the English and Spanish list, enter 'show' to see." %(removeword, spanishword))
    except ValueError:
        index = spanish_list.index(removeword)
        englishword = english_list[index]
        spanish_list.remove(removeword)
        english_list.remove(englishword)
        del (english_to_spanish[englishword])
        del (spanish_to_english[removeword])

Answer 3

试试这个：

def remove(word):
    removeword = input("Please enter the word you would like to remove")
    spanishword = ""
    index = english_list.index(removeword)
    if (index):
        spanishword = spanish_list[index]
    else:
        index = spanish_list.index(removeword)
        spanishword = removeword
        removeword = english_list[index]

    english_list.remove(removeword)
    spanish_list.remove(spanishword)
    del (english_to_spanish[removeword])
    del (spanish_to_english[spanishword])
    print("The word '%s' and '%s' has been removed from the English and Spanish list, enter 'show' to see." %(removeword, spanishword))