Question

字符串citystate可以格式化为：

“Greenwich，CT”
“康涅狄格州格林威治”
“格林威治CT”

如何将字符串citystate拆分为两个单独的字符串，city和state（使用Python）？

（这样城市==格林威治和州== CT）

感谢您的帮助！

Answer 1

import re
city, state = re.split(r' ?,? ?', location)

要解决纽约州纽约市的问题，请使用切片：

split_loc = re.split(r' ?,? ?', location)
city = ' '.join(split_loc[:-1]) # Everything up to last element joined by space
state = split_loc[-1]

Answer 2

做出一些假设：

（1）状态代码是两个字符，您将通过查找状态代码表来验证分割结果

（2）您的输入数据已经转换为unicode（Python 2.X）或str（Python 3.x）

（3）您的数据可能发生了更多范围的可能的数据输入填充和脚本小子填充。

<强>代码：

tests = [
    u"Foo YZ", u"Foo YZ\n", u"Foo\xa0YZ", u"Foo  YZ",
    u"Foo, YZ", u"Foo, YZ\n", u"Foo,\xa0YZ",
    u"Foo,YZ", u"Foo,YZ\n", u"Foo,,YZ",
    u"FooYZ", u"   Foo \t,\xa0   YZ \n",
    ]

import re

def machin(strg):
    strg = strg.strip()
    state = strg[-2:]
    city = u" ".join(strg[:-2].split()) # normalise whitespace
    city = city.rstrip(", ")
    return city, state

def kettler(strg):
    split_loc = re.split(r' ?,? ?', strg)
    city = ' '.join(split_loc[:-1]) # Everything up to last element joined by space
    state = split_loc[-1]
    return city, state

def bothwell(strg):
    # split on last comma
    res = strg.rsplit(',', 1)
    if len(res)==2:
        return res[0].strip(), res[1].strip()
    # otherwise split on last non-trailing whitespace
    res = strg.rsplit(None, 1)
    if len(res)==2:
        return res[0].lstrip(), res[1]
    # otherwise split failed
    # raise ValueError("Could not split {0} into city, state".format(s))
    return None, None

def paulger_v2(strg):
    return strg[:-3].strip(", "), strg[-2:]


funcs = (kettler, bothwell, paulger_v2, machin)

for func in funcs:
    print "\n===", func.__name__, "==="
    nok = 0
    for test in tests:
        city, state = func(test)
        ok = city == u"Foo" and state == u"YZ"; nok += ok
        print [ok, test, city, state]
        test = test.replace(u"Foo", u"Foo  Baa")
        city, state = func(test)
        ok = city == u"Foo Baa" and state == u"YZ"; nok += ok
        print [ok, test, city, state]
    print "\n+++ %s: %d OK +++" % (func.__name__, nok)

<强>输出：

=== kettler ===
[True, u'Foo YZ', u'Foo', u'YZ']
[True, u'Foo  Baa YZ', u'Foo Baa', u'YZ']
[False, u'Foo YZ\n', u'Foo', u'YZ\n']
[False, u'Foo  Baa YZ\n', u'Foo Baa', u'YZ\n']
[False, u'Foo\xa0YZ', '', u'Foo\xa0YZ']
[False, u'Foo  Baa\xa0YZ', u'Foo', u'Baa\xa0YZ']
[True, u'Foo  YZ', u'Foo', u'YZ']
[True, u'Foo  Baa  YZ', u'Foo Baa', u'YZ']
[True, u'Foo, YZ', u'Foo', u'YZ']
[True, u'Foo  Baa, YZ', u'Foo Baa', u'YZ']
[False, u'Foo, YZ\n', u'Foo', u'YZ\n']
[False, u'Foo  Baa, YZ\n', u'Foo Baa', u'YZ\n']
[False, u'Foo,\xa0YZ', u'Foo', u'\xa0YZ']
[False, u'Foo  Baa,\xa0YZ', u'Foo Baa', u'\xa0YZ']
[True, u'Foo,YZ', u'Foo', u'YZ']
[True, u'Foo  Baa,YZ', u'Foo Baa', u'YZ']
[False, u'Foo,YZ\n', u'Foo', u'YZ\n']
[False, u'Foo  Baa,YZ\n', u'Foo Baa', u'YZ\n']
[False, u'Foo,,YZ', u'Foo ', u'YZ']
[False, u'Foo  Baa,,YZ', u'Foo Baa ', u'YZ']
[False, u'FooYZ', '', u'FooYZ']
[False, u'Foo  BaaYZ', u'Foo', u'BaaYZ']
[False, u'   Foo \t,\xa0   YZ \n', u'  Foo \t \xa0  YZ', u'\n']
[False, u'   Foo  Baa \t,\xa0   YZ \n', u'  Foo Baa \t \xa0  YZ', u'\n']

+++ kettler: 8 OK +++

=== bothwell ===
[True, u'Foo YZ', u'Foo', u'YZ']
[False, u'Foo  Baa YZ', u'Foo  Baa', u'YZ']
[True, u'Foo YZ\n', u'Foo', u'YZ']
[False, u'Foo  Baa YZ\n', u'Foo  Baa', u'YZ']
[True, u'Foo\xa0YZ', u'Foo', u'YZ']
[False, u'Foo  Baa\xa0YZ', u'Foo  Baa', u'YZ']
[True, u'Foo  YZ', u'Foo', u'YZ']
[False, u'Foo  Baa  YZ', u'Foo  Baa', u'YZ']
[True, u'Foo, YZ', u'Foo', u'YZ']
[False, u'Foo  Baa, YZ', u'Foo  Baa', u'YZ']
[True, u'Foo, YZ\n', u'Foo', u'YZ']
[False, u'Foo  Baa, YZ\n', u'Foo  Baa', u'YZ']
[True, u'Foo,\xa0YZ', u'Foo', u'YZ']
[False, u'Foo  Baa,\xa0YZ', u'Foo  Baa', u'YZ']
[True, u'Foo,YZ', u'Foo', u'YZ']
[False, u'Foo  Baa,YZ', u'Foo  Baa', u'YZ']
[True, u'Foo,YZ\n', u'Foo', u'YZ']
[False, u'Foo  Baa,YZ\n', u'Foo  Baa', u'YZ']
[False, u'Foo,,YZ', u'Foo,', u'YZ']
[False, u'Foo  Baa,,YZ', u'Foo  Baa,', u'YZ']
[False, u'FooYZ', None, None]
[False, u'Foo  BaaYZ', u'Foo', u'BaaYZ']
[True, u'   Foo \t,\xa0   YZ \n', u'Foo', u'YZ']
[False, u'   Foo  Baa \t,\xa0   YZ \n', u'Foo  Baa', u'YZ']

+++ bothwell: 10 OK +++

=== paulger_v2 ===
[True, u'Foo YZ', u'Foo', u'YZ']
[False, u'Foo  Baa YZ', u'Foo  Baa', u'YZ']
[False, u'Foo YZ\n', u'Foo', u'Z\n']
[False, u'Foo  Baa YZ\n', u'Foo  Baa', u'Z\n']
[True, u'Foo\xa0YZ', u'Foo', u'YZ']
[False, u'Foo  Baa\xa0YZ', u'Foo  Baa', u'YZ']
[True, u'Foo  YZ', u'Foo', u'YZ']
[False, u'Foo  Baa  YZ', u'Foo  Baa', u'YZ']
[True, u'Foo, YZ', u'Foo', u'YZ']
[False, u'Foo  Baa, YZ', u'Foo  Baa', u'YZ']
[False, u'Foo, YZ\n', u'Foo', u'Z\n']
[False, u'Foo  Baa, YZ\n', u'Foo  Baa', u'Z\n']
[True, u'Foo,\xa0YZ', u'Foo', u'YZ']
[False, u'Foo  Baa,\xa0YZ', u'Foo  Baa', u'YZ']
[True, u'Foo,YZ', u'Foo', u'YZ']
[False, u'Foo  Baa,YZ', u'Foo  Baa', u'YZ']
[False, u'Foo,YZ\n', u'Foo', u'Z\n']
[False, u'Foo  Baa,YZ\n', u'Foo  Baa', u'Z\n']
[True, u'Foo,,YZ', u'Foo', u'YZ']
[False, u'Foo  Baa,,YZ', u'Foo  Baa', u'YZ']
[False, u'FooYZ', u'Fo', u'YZ']
[False, u'Foo  BaaYZ', u'Foo  Ba', u'YZ']
[False, u'   Foo \t,\xa0   YZ \n', u'Foo \t,\xa0   Y', u' \n']
[False, u'   Foo  Baa \t,\xa0   YZ \n', u'Foo  Baa \t,\xa0   Y', u' \n']

+++ paulger_v2: 7 OK +++

=== machin ===
[True, u'Foo YZ', u'Foo', u'YZ']
[True, u'Foo  Baa YZ', u'Foo Baa', u'YZ']
[True, u'Foo YZ\n', u'Foo', u'YZ']
[True, u'Foo  Baa YZ\n', u'Foo Baa', u'YZ']
[True, u'Foo\xa0YZ', u'Foo', u'YZ']
[True, u'Foo  Baa\xa0YZ', u'Foo Baa', u'YZ']
[True, u'Foo  YZ', u'Foo', u'YZ']
[True, u'Foo  Baa  YZ', u'Foo Baa', u'YZ']
[True, u'Foo, YZ', u'Foo', u'YZ']
[True, u'Foo  Baa, YZ', u'Foo Baa', u'YZ']
[True, u'Foo, YZ\n', u'Foo', u'YZ']
[True, u'Foo  Baa, YZ\n', u'Foo Baa', u'YZ']
[True, u'Foo,\xa0YZ', u'Foo', u'YZ']
[True, u'Foo  Baa,\xa0YZ', u'Foo Baa', u'YZ']
[True, u'Foo,YZ', u'Foo', u'YZ']
[True, u'Foo  Baa,YZ', u'Foo Baa', u'YZ']
[True, u'Foo,YZ\n', u'Foo', u'YZ']
[True, u'Foo  Baa,YZ\n', u'Foo Baa', u'YZ']
[True, u'Foo,,YZ', u'Foo', u'YZ']
[True, u'Foo  Baa,,YZ', u'Foo Baa', u'YZ']
[True, u'FooYZ', u'Foo', u'YZ']
[True, u'Foo  BaaYZ', u'Foo Baa', u'YZ']
[True, u'   Foo \t,\xa0   YZ \n', u'Foo', u'YZ']
[True, u'   Foo  Baa \t,\xa0   YZ \n', u'Foo Baa', u'YZ']

+++ machin: 24 OK +++

Answer 3

在你给出的例子中，状态总是最后两个字符citystate [-2：]，而city总是一直到那个减去尾随空格和逗号。

我将添加一个额外的例子“New York，NY”。

citystates = ["Greenwich, CT", "Greenwich,CT", "Greenwich CT", "New York, NY"]

for citystate in citystates:
    city, state = citystate[:-3].strip(", "), citystate[-2:]
    print "City '%s' is in '%s' % (city, state)

运行时给出：

City 'Greenwich' is in 'CT'
City 'Greenwich' is in 'CT'
City 'Greenwich' is in 'CT'
City 'New York' is in 'NY'

Answer 4

def cityState(s):
    # split on last comma
    res = s.rsplit(',', 1)
    if len(res)==2:
        return res[0].strip(), res[1].strip()
    # otherwise split on last non-trailing whitespace
    res = s.rsplit(None, 1)
    if len(res)==2:
        return res[0].lstrip(), res[1]
    # otherwise split failed
    raise ValueError("Could not split {0} into city, state".format(s))

for city_state in ["Greenwich, CT", "Greenwich,CT", "Greenwich CT", "New York, NY"]:
    print "City '{0}' is in '{1}'".format(*cityState(city_state))

结果

City 'Greenwich' is in 'CT'
City 'Greenwich' is in 'CT'
City 'Greenwich' is in 'CT'
City 'New York' is in 'NY'

在字符串中分开的城市和州？

4 个答案: