正则表达式，用于匹配和替换标点符号，数字和特殊字符

Question

我正在寻找一个用python编写的正则表达式，以从文本中删除标点符号，数字和符号（例如$-。，@等），并将文本也转换为小写。

示例文本为：

I'm looking for text without the given numbers like 123, $223.423 ab-c@cde. Is it possible with the python regular expression?

输出文本为：

i looking for text without the given numbers like is it possible with the python regular expression

Answer 1

ss = "I'm looking for text without the given numbers like 123, $223.423 ab-c@cde. Is it possible with the python regular expression?"
ss1 = ''.join([i for i in ss if i.isalpha() or i == " "]).replace("   "," ").lower()
print(ss1)

输出：

im looking for text without the given numbers like abccde is it possible with the python regular expression

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