如何在python中拆分地址？

Question

I need to split an address to three parts using python. Given the following adresses:

103 Rur de Rennes 75006 Paris
57-59 avenue du Président Wilson 93210 Saint Denis la Plaine

I need to split into three parts(address, code, location), so the final result should be:

103 Rur de Rennes,  75006,  Paris
57-59 avenue du Président Wilson,  93210,  Saint Denis la Plaine

Is there a way I can achieve this?

Answer 1

re.split will get you most of the way, if we can assume the code is a 5-digit number.

>>> re.split("(\d{5})", "103 Rur de Rennes 75006 Paris")
['103 Rur de Rennes ', '75006', ' Paris']

To trim the whitespace, you can just use the strip method:

>>> [x.strip() for x in re.split("(\d{5})", "103 Rur de Rennes 75006 Paris")]
['103 Rur de Rennes', '75006', 'Paris']

Answer 2

Assuming the address starts with the street number and the next number will be the code, you cansplit the address and look for a number from the right:

def sep_address(address):
    parts = address.split()
    for i in range(len(parts)-1, 0, -1):
        if parts[i].isdigit():
            return ' '.join(parts[:i]), parts[i], ' '.join(parts[i+1:])

print(sep_address("103 Rur de Rennes 75006 Paris"))
print(sep_address("57-59 avenue du Président Wilson 93210 Saint Denis la Plaine"))

Gives:

('103 Rur de Rennes', '75006', 'Paris')
('57-59 avenue du Président Wilson', '93210', 'Saint Denis la Plaine')

Answer 3

import re

def three_parts(addr):
    splitter = re.compile(r"^(?P&LTADDRESS>\d+-?\d*[\w\s]+[^\d])(?P&LTCODE>\d+)\s+(?P&LTLOCATION>[\w\s]+)")
    retval = splitter.match(addr)
    if retval:
        # if you prefer a dictionary use retval.groupdict()
        return [retval.group("ADDRESS"), retval.group("CODE"), retval.group("LOCATION")]

if __name__ == "__main__":
    addresses = [
        "103 Rur de Rennes 75006 Paris",
        "57-59 avenue du Président Wilson 93210 Saint Denis la Plaine",
        "bogus address"
    ]    
    for addr in addresses:
        print(addr)
        parts = three_parts(addr)
        print(parts)
        print("-"*40)

Output

103 Rur de Rennes 75006 Paris
['103 Rur de Rennes ', '75006', 'Paris']
----------------------------------------
57-59 avenue du Président Wilson 93210 Saint Denis la Plaine
['57-59 avenue du Président Wilson ', '93210', 'Saint Denis la Plaine']
----------------------------------------
bogus address
None
----------------------------------------