使用正则表达式无法按预期工作的单词删除数字

Question

import re
text = """Why is this $[...] when the same product is available for $[...] here?<br />
http://www.amazon.com/VICTOR-FLY-MAGNET-BAIT-REFILL/dp/B00004RBDY<br /><br />
The Victor M380 and M502 traps are unreal, of course -- total fly genocide. 
Pretty stinky, but only right nearby. won't, can't iamwordwith4number 234f  ther was a word withnumber before me"""

sentense1 = re.sub(r"\S*\d+\S*", "", text)  # removes words which has digits in it.
sentense1 = re.sub('[^A-Za-z0-9]+', " ", text)  # removes punctuations.
print(sentense1)

我正在尝试删除其中包含数字的单词。例如在上面的句子中，我们有这样的词：iamwordwith4number 或 234f。所以我想删除它们。如果我评论第二个正则表达式行，它就会工作。我不确定是否存在依赖性。你能给我一些建议吗？

Answer 1

你的第二个正则表达式应该是这样的：

sentense1 = re.sub('[^A-Za-z0-9]+', " ", sentense1)  # removes punctuations.

而不是这个：

sentense1 = re.sub('[^A-Za-z0-9]+', " ", text)  # removes punctuations.

使用正则表达式无法按预期工作的单词删除数字

removing digits with words using regular expressions not working as expected

python

regex

preprocessor