python - 如何将所有行连接到 python 中的文本文件中？

Question

我有一个文件，当我打开它时，它会打印出一些段落。我需要用一个空格将这些段落连接在一起，形成一大段文字。

例如

for data in open('file.txt'):
    print data

有这样的输出:

Hello my name is blah. What is your name?
Hello your name is blah. What is my name?

输出怎么会是这样呢？:

Hello my name is blah. What is your name? Hello your name is blah. What is my name?

我试过用这样的空格替换换行符:

for data in open('file.txt'):
      updatedData = data.replace('\n',' ')

但这只会去掉空行，不会加入段落

还尝试像这样加入:

for data in open('file.txt'):
    joinedData = " ".join(data)

但这用空格分隔每个字符，同时也没有摆脱段落格式。

Answer 1

你可以使用str.join:

with open('file.txt') as f:
    print " ".join(line.strip() for line in f)  

line.strip() 将从行的两端删除所有类型的空格。您可以使用 line.rstrip("\n") 仅删除尾随的 "\n"。

如果 file.txt 包含:

Hello my name is blah. What is your name?
Hello your name is blah. What is my name?

那么输出将是:

Hello my name is blah. What is your name? Hello your name is blah. What is my name?