读写文件

Question

我正在尝试读取一个文本文件，并在新文件中将该文件的内容转换为pig latin。这就是我所拥有的：

def pl_line(word):
    statement = input('enter a string: ')

    words = statement.split()

    for word in words:
        if len(word) <= 1:
            print(word + 'ay')
        else:
            print(word[1:] + word[0] + 'ay')


def pl_file(old_file, new_file):
    old_file = input('enter the file you want to read from: ')
    new_file = input('enter the file you would like to write to: ')

    write_to = open(new_file, 'w')
    read_from = open(old_file, 'r')

    lines = read_from.readlines()
    for line in lines():
        line = pl_line(line.strip('\n'))
        write_to.write(line + '\n')
    read_from.close()
    write_to.close()

但是，当我运行它时，我收到以下错误消息： TypeError：'list'对象不可调用

有关如何改进代码的任何想法？

Answer 1

以下是对实际转换器的一些改进：

_VOWELS = 'aeiou'
_VOWELS_Y = _VOWELS + 'y'
_SILENT_H_WORDS = "hour honest honor heir herb".split()

def igpay_atinlay(word:str, with_vowel:str='yay'):
    is_title = False
    if word.title() == word:
        is_title = True
        word = word.lower()

    # Default case, strangely, is 'in-yay'
    result = word + with_vowel

    if not word[0] in _VOWELS and not word in _SILENT_H_WORDS:
        for pos in range(1, len(word)):
            if word[pos] in _VOWELS:
                result = word[pos:] + word[0:pos] + 'ay'
                break

    if is_title:
        result = result.title()

    return result

def line_to_pl(line:str, with_vowel:str='yay'):
    new_line = ''

    start = None
    for pos in range(0, len(line)):
        if line[pos].isalpha() or line[pos] == "'" or line[pos] == "-":
            if start is None:
                start = pos
        else:
            if start is not None:
                new_line += igpay_atinlay(line[start:pos], with_vowel=with_vowel)
                start = None
            new_line += line[pos]

    if start is not None:
        new_line += igpay_atinlay(line[start:pos], with_vowel=with_vowel)
        start = None

    return new_line

tests = """
Now is the time for all good men to come to the aid of their party!
Onward, Christian soldiers!
A horse! My kingdom for a horse!
Ng!
Run away!
This is it.
Help, I need somebody.
Oh, my!
Dr. Livingston, I presume?
"""

for t in tests.split("\n"):
    if t:
        print(t)
        print(line_to_pl(t))

Answer 2

您很可能将作业混淆为read_from和write_to，因此您无意中尝试从仅为写入权限打开的文件中读取。