删除键值对中存在的多个换行符.想要在python中删除换行后的单行

Question

eg: input TXT file

akey=avalue1,
avalue2,
avalue3
bkey=cvalue

这里的输出我想在一个列表中，它的两个元素将是

[akey=avalue1,avalue2,avalue3
bkey=cvalue]

Answer 1

使用几个regexp并不难:

import re
data = """
akey=avalue1,
avalue2,
avalue3
bkey=cvalue
""".strip()
# Fold comma-newline-spaces to a single comma
data = re.sub(r",ns*", ",", data)
# Fold multiple newlines to one
data = re.sub(r"n+", "n", data)
print(data)

这个输出

akey=avalue1,avalue2,avalue3
bkey=cvalue