我正在创建一个根据关键字搜索文件的脚本，我的输出应该是整个观察结果，而不仅仅是匹配的文本，但我发现 .group 对此不起作用。
import re
import os
pers_info = pd.read_csv(r".....StateWorkforceMailingList_2-7-19a.csv",encoding='utf-8')
Pers_info['State'] = Texas, Florida etc...
files=os.listdir(r"....\State Files")
Files = list of WORKFORCE_2017_ALABAMA_FILE.xlsx,...,n
matches=re.findall(pers_info.State[4], files.replace("_", " "),re.I)
print(match)
我的预期输出是 WORKFORCE_2017_ALABAMA_FILE.xlsx 相反，我得到“阿拉巴马州”
我应该尝试 bool 掩码吗？
最佳答案
使用
>>> import pandas as pd
>>> Pers_info = pd.DataFrame({'State':['Texas', 'Alabama', 'Florida']})
>>> Files = ['WORKFORCE_2017_ALABAMA_FILE.xlsx', 'WORKFORCE_2017_FILE.xlsx']
>>> pattern = re.compile(rf'(?<![^\W_])(?:{"|".join(Pers_info["State"].to_list())})(?![^\W_])', re.I)
>>> list(filter(pattern.search, Files))
['WORKFORCE_2017_ALABAMA_FILE.xlsx']
参见regex proof .
说明
--------------------------------------------------------------------------------
(?<! look behind to see if there is not:
--------------------------------------------------------------------------------
[^\W_] any character except: non-word
characters (all but a-z, A-Z, 0-9, _),
'_'
--------------------------------------------------------------------------------
) end of look-behind
--------------------------------------------------------------------------------
(?: group, but do not capture:
--------------------------------------------------------------------------------
Texas 'Texas'
--------------------------------------------------------------------------------
| OR
--------------------------------------------------------------------------------
Alabama 'Alabama'
--------------------------------------------------------------------------------
| OR
--------------------------------------------------------------------------------
Florida 'Florida'
--------------------------------------------------------------------------------
) end of grouping
--------------------------------------------------------------------------------
(?! look ahead to see if there is not:
--------------------------------------------------------------------------------
[^\W_] any character except: non-word
characters (all but a-z, A-Z, 0-9, _),
'_'
--------------------------------------------------------------------------------
) end of look-ahead
关于python - 如何显示完整结果，而不是 python 中正则表达式搜索的匹配文本，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/66606769/