Python正则表达式编译和搜索带有数字和单词的字符串

Question

我有三个字符串，其中包含街道名称和公寓号的信息

"32 Syndicate street"、"Street 45 No 100"和"15, Tom and Jerry Street"

这里,

"32 Syndicate street" -> {"street name": "Syndicate street", "apartment number": "32"}
"Street 45 No 100" -> {"street name": "Street 45", "apartment number": "No 100"}
"15, Tom and Jerry Street" -> {"street name": "Tom and Jerry Street", "apartment number": "15"}

我试图使用Python的正则表达式分别获取街道名称和公寓号码。 这是我当前的代码，有问题：

import re 
for i in ["32 Syndicate street","Street 45 No 100","15, Tom and Jerry Street"]:
    ###--- write patterns for street names
    pattern_street = re.compile(r'([A-Za-z]+\s?\w+ | [A-Za-z]+\s?[A-Za-z]+\s?[A-Za-z]+\s? | [A-Za-z]+\s?)') 
    match_street = pattern_street.search(i) 
    
    ###--- write patterns for apartment numbers
    pattern_aptnum = re.compile(r'(^\d+\s? | [A-Za-z]+[\s?]+[0-9]+$)') 
    match_aptnum = pattern_aptnum.search(i)

    fin_street = match_street[0] ##--> final street name
    fin_aptnum = match_aptnum[0] ##--> final apartment name 

    print("street--",fin_street)
    print("apartmentnumber--",fin_aptnum)

我得到以下输出：

street--  Syndicate street 
apartmentnumber-- 32 
street-- Street 45 
apartmentnumber--  No 100

我有两个问题：

1. 我无法得到最后一个字符串的公寓号码“15”
2. 为什么在street-- Syndicate street和apartmentnumber-- No 100的开头有空格

Answer 1

1. 如果希望在正则表达式中自由使用空白，请使用re.compile(... , re.X)
2. print()默认情况下在它的几个参数之间插入一个空格