如何从python中的文件中删除空格以外的特殊字符? [英] How to remove special characters except space from a file in python?
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问题描述
我有大量的文本(逐行显示),我想删除特殊字符,但要保留字符串的空间和结构.
I have a huge corpus of text (line by line) and I want to remove special characters but sustain the space and structure of the string.
hello? there A-Z-R_T(,**), world, welcome to python.
this **should? the next line#followed- by@ an#other %million^ %%like $this.
应该是
hello there A Z R T world welcome to python
this should be the next line followed by another million like this
推荐答案
您也可以通过 regex
使用此模式:
You can use this pattern, too, with regex
:
import re
a = '''hello? there A-Z-R_T(,**), world, welcome to python.
this **should? the next line#followed- by@ an#other %million^ %%like $this.'''
for k in a.split("\n"):
print(re.sub(r"[^a-zA-Z0-9]+", ' ', k))
# Or:
# final = " ".join(re.findall(r"[a-zA-Z0-9]+", k))
# print(final)
输出:
hello there A Z R T world welcome to python
this should the next line followed by an other million like this
否则,您可以将最后几行存储到列表
:
Otherwise, you can store the final lines into a list
:
final = [re.sub(r"[^a-zA-Z0-9]+", ' ', k) for k in a.split("\n")]
print(final)
输出:
['hello there A Z R T world welcome to python ', 'this should the next line followed by an other million like this ']
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