python打印正则表达式匹配产生空列表

我正在使用正则表达式来匹配以“Dr.”开头的名字。但是，当我打印匹配项时，它们打印为列表，有些是空的。我只想打印名称。 代码:

import re 
 
f = open('qwert.txt', 'r') 
 
lines = f.readlines() 
for x in lines: 
       p=re.findall(r'(?:Dr[.](\w+))',x) 
       q=re.findall(r'(?:As (\w+))',x) 
       print p 
       print q 

qwert.txt:

Dr.John and Dr.Keel 
Dr.Tensa 
Dr.Jees 
As John winning Nobel prize 
As Mary wins all prize 
car 
 tick me 3 
 python.hi=is good 
 dynamic  
 and precise 
 
tickme 2 and its in it 
 its rapid   
 its best 
 well and easy 

期望的输出:

John 
Keel 
Tensa 
Jees 
John 
Mary 

实际输出:

['John', 'Keel'] 
[] 
['Tensa'] 
[] 
['Jees'] 
[] 
[] 
['John'] 
[] 
['Mary'] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 
[] 

请您参考如下方法:

您看到的 [] 是因为 findAll 返回一个 list 字符串。如果您需要字符串本身，请遍历 findAll 的结果。

p=re.findall(r'(?:Dr[.](\w+))',x) 
q=re.findall(r'(?:As (\w+))',x) 
for str in p+q: 
  print str