python reg-ex模式不匹配

Question

我有以下模式和字符串reg-ex匹配问题。模式基本上是一个名称，后面跟着任意数量的字符，后跟一个短语（见下面的模式），后面跟着任意数量的字符，后跟机构名称。

pattern = "[David Maxwell|David|Maxwell] .* [educated at|graduated from|attended|studied at|graduate of] .* Eton College" 
str = "David Maxwell was educated at Eton College, where he was a King's Scholar and Captain of Boats, and at Cambridge University where he rowed in the winning Cambridge boat in the 1971 and 1972 Boat Races." 
match = re.search(pattern, str) 

但是搜索方法返回一个不匹配上面的str？我的reg-ex是否正确？我是reg-ex的新手。任何帮助表示赞赏

Answer 1

[...]意思是“从这组字符中的任何字符”。如果你想要“这组词中的任何词”，你需要使用括号：(...|...)。

你的表情还有另一个问题，你有.*（空格，点，星号，空格），这意味着“一个空格，后跟零个或多个字符，后跟一个空格”。换句话说，最短的匹配是两个的空格。然而，你的文本在“受过教育”和“伊顿公学”之间只有一个空间。

>>> pattern = '(David Maxwell|David|Maxwell).*(educated at|graduated from|attended|studied at|graduate of).*Eton College' 
>>> str = "David Maxwell was educated at Eton College, where he was a King's Scholar and Captain of Boats, and at Cambridge University where he rowed in the winning Cambridge boat in the 1971 and 1972 Boat Races." 
>>> re.search(pattern, str) 
<_sre.SRE_Match object at 0x1006d10b8>