在python中查找关键字后的单词

我想找到出现在关键字（由我指定和搜索）后面的单词，并打印出结果。我知道我应该用正则表达式来做这件事，我也试过了，就像这样：

import re
s = "hi my name is ryan, and i am new to python and would like to learn more"
m = re.search("^name: (\w+)", s)
print m.groups()

mystring =  "hi my name is ryan, and i am new to python and would like to learn more"
keyword = 'name'
before_keyword, keyword, after_keyword = mystring.partition(keyword)
>>> before_keyword
'hi my '
>>> keyword
'name'
>>> after_keyword
' is ryan, and i am new to python and would like to learn more'

输出仅为：

"is"

但是我想获得单词“name”后面的所有单词和标点符号。

而不是

“^name:（\w+）”

使用：

"^name:(.*)"

---

不使用正则表达式，您可以（例如）用如下方式分隔字符串：

import re
s = "hi my name is ryan, and i am new to python and would like to learn more"
m = re.search("^name: (\w+)", s)
print m.groups()

mystring =  "hi my name is ryan, and i am new to python and would like to learn more"
keyword = 'name'
before_keyword, keyword, after_keyword = mystring.partition(keyword)
>>> before_keyword
'hi my '
>>> keyword
'name'
>>> after_keyword
' is ryan, and i am new to python and would like to learn more'

---

但是，您必须单独处理不必要的空白。

关于输出，您使用了什么：

re.search("name (\w+)", s)

必须使用的内容（全部匹配）：

你可以这么做

s = "hi my name is ryan, and i am new to python and would like to learn more"
s.split('name')

这将拆分字符串并返回如下列表['hi my'，'is ryan，我是python新手，希望了解更多信息']

---

取决于你想做什么，这可能有帮助或没有帮助。

你的例子不起作用，但据我所知：

regexp = re.compile("name(.*)$")
print regexp.search(s).group(1)
# prints " is ryan, and i am new to python and would like to learn more"

---

这将在“name”之后一直打印到行尾。

另一种选择

   import re
   m = re.search('(?<=name)(.*)', s)
   print m.groups()

重新导入
m=re.search（“（？这将适用于u:work name\s\w+\s（\w+）

不使用正则表达式，您可以


带标点符号（考虑将所有内容都设置为单个大小写，包括搜索词）

将文本拆分为单个单词

查找搜索词的索引

从数组中获取单词（
index+1
用于后面的单词，
index-1
用于前面的单词）


代码段：

import string
s = 'hi my name is ryan, and i am new to python and would like to learn more'
t = 'name'
i = s.translate(string.maketrans("",""), string.punctuation).split().index(t)
print s.split()[i+1]

>> is


对于多个事件，您需要保存多个索引：

import string
s = 'hi my NAME is ryan, and i am new to NAME python and would like to learn more'
t = 'NAME'
il = [i for i, x in enumerate(s.translate(string.maketrans("",""), string.punctuation).split()) if x == t]
print [s.split()[x+1] for x in il]

>> ['is', 'python']

如果在同一个句子中有多个“name”怎么办？你的解决方案将不起作用，它应该是
mystring.partition（keyword）
如果
keyword
周围没有引号，那么如果
keyword
在字符串中多次出现，就会产生虚假的结果。非常感谢：）太棒了！谢谢！
import re
s = "hi my name is ryan, and i am new to python and would like to learn more"
m = re.search("^name: (\w+)", s)

print m.group(1)