Python通过正则表达式从文件中读取行

Question

我有一个文本文件，我想以某种格式读入列表。

当我写作时:

with open('chat_history.txt', encoding='utf8') as f:
    mylist = [line.rstrip('\n') for line in f]

我得到:

27/08/15, 15:45 - text
continue text
continue text 2
27/08/15, 16:10 - new text
new text 2
new text 3
27/08/15, 19:55 - more text

我想得到:

27/08/15, 15:45 - text continue text continue text 2
27/08/15, 16:10 - new text new text 2 new text 3
27/08/15, 19:55 - more text

我只想在格式为 \nDD/MM/YY, HH:MM - 时拆分不幸的是，我不是正则表达式专家。我试过:

with open('chat_history.txt', encoding='utf8') as f:
    mylist = [line.rstrip('\n'r'[\d\d/\d\d/\d\d - ]') for line in f]

这给出了相同的结果。再想一想，为什么它不起作用是有道理的。不过会喜欢一些帮助。

Answer 1

with open('chat_history.txt', encoding='utf8') as f:
    l = [line.rstrip('\n').replace('\n', ' ') for line in f]

print(l)