python - 没有命名的模块(导入错误 Python 2.7)

Question

我正在尝试按照每个步骤解决 Learn Python The Hard Way 中的练习 25，但我不断收到此错误:

>>> import ex25
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named ex25

我将本书网站上的代码复制粘贴到 Gedit(Linux 文本编辑器)，但它似乎不是错字。

   def break_words(stuff):
        """This function will break up words for us."""
        words = stuff.split(' ')
        return words

    def sort_words(words):
        """Sorts the words."""
        return sorted(words)

    def print_first_word(words):
        """Prints the first word after popping it off."""
        word = words.pop(0)
        print word

    def print_last_word(words):
        """Prints the last word after popping it off."""
        word = words.pop(-1)
        print word

    def sort_sentence(sentence):
        """Takes in a full sentence and returns the sorted words."""
        words = break_words(sentence)
        return sort_words(words)

    def print_first_and_last(sentence):
        """Prints the first and last words of the sentence."""
        words = break_words(sentence)
        print_first_word(words)
        print_last_word(words)

    def print_first_and_last_sorted(sentence):
        """Sorts the words then prints the first and last one."""
        words = sort_sentence(sentence)
        print_first_word(words)
        print_last_word(words)

Answer 1

@Padraic Cunningham 和@James Mills 提出了正确的问题，您只是遇到了导入错误，没有任何暗示是代码错误。您需要确保该文件存在于您正在使用的目录中。请记住它区分大小写。

Learnpython.org Examples , Python.org Modules Docs