Python：替换文件中的行时遇到问题

Question

我正在尝试使用 deepl 构建翻译器来翻译字幕，但它运行并不完美。我设法翻译了字幕，但我在替换台词时遇到了大部分问题。我可以看到这些行已被翻译，因为它打印了它们但没有替换它们。每当我运行程序时，它与原始文件相同。

这是负责的代码：

def translate(input, output, languagef, languaget):
    file = open(input, 'r').read()
    fileresp = open(output,'r+')
    subs = list(srt.parse(file))
    for sub in subs:
        try:
            linefromsub = sub.content
            translationSentence = pydeepl.translate(linefromsub, languaget.upper(), languagef.upper())
            print(str(sub.index) + ' ' + translationSentence)
            for line in fileresp.readlines():
                newline = fileresp.write(line.replace(linefromsub,translationSentence))
        except IndexError:
            print("Error parsing data from deepl")

这是文件的样子：

1
00:00:02,470 --> 00:00:04,570
        - Yes, I do.
        - (laughs)

2
00:00:04,605 --> 00:00:07,906
      My mom doesn't want
      to babysit everyday

3
00:00:07,942 --> 00:00:09,274
        or any day.

4
00:00:09,310 --> 00:00:11,977
        But I need
    my mom's help sometimes.

5
00:00:12,013 --> 00:00:14,046
        She's just gonna
    have to be grandma today.

我们将不胜感激 :) 谢谢

Answer 1

您正在以 r+ 模式打开 fileresp。当您调用 readlines() 时，文件的位置将被设置为文件的末尾。随后对 write() 的调用将追加到文件中。如果你想覆盖原始内容而不是追加，你应该试试这个：

allLines = fileresp.readlines()
fileresp.seek(0)    # Set position to the beginning
fileresp.truncate() # Delete the contents
for line in allLines:
    fileresp.write(...)

更新

很难在此处看到您尝试使用 r+ 模式完成什么，但您似乎有两个独立的输入和输出文件。如果是这种情况，请考虑：

def translate(input, output, languagef, languaget):
    file = open(input, 'r').read()
    fileresp = open(output, 'w') # Use w mode instead
    subs = list(srt.parse(file))
    for sub in subs:
        try:
            linefromsub = sub.content
            translationSentence = pydeepl.translate(linefromsub, languaget.upper(), languagef.upper())
            print(str(sub.index) + ' ' + translationSentence)
            fileresp.write(translationSentence) # Write the translated sentence
        except IndexError:
            print("Error parsing data from deepl")

Python：替换文件中的行时遇到问题

Python: Having trouble replacing lines from file

python

python-3.x

deepl