3 3 how are you doing???
2 5 dear, where abouts!!!!!!........
4 6 don't worry i'll be there for ya///
。我想去掉他们的标点符号。我怎么能用正则表达式循环和剥离。
>>> import re
>>> a="what is. your. name?"
>>> b=re.findall(r'\w+',a)
>>> b
['what', 'is', 'your', 'name']
。。。
File "/usr/lib/python2.7/re.py", line 137, in match
return _compile(pattern, flags).match(string)
File "/usr/lib/python2.7/re.py", line 242, in _compile
raise error, v # invalid expression
sre_constants.error: multiple repeat
编辑:句子是第三列,分隔符是制表符,所以如何从第三列删除标点符号。
最佳答案
Iterate lines using for
loop:
with open('/path/to/file.txt') as f:
for line in f:
words = re.findall(r'\w+', line)
# do something with words
with open('/path/to/file.txt') as f:
for line in f:
col1, col2, rest = line.split('\t', 2) # split into 3 columns
words = re.findall(r'\w+', rest)
line = '\t'.join(col1, col2, ' '.join(words))
# do something with words or line
关于python - 从文件列表中删除标点符号,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/20569077/