Python 代码中不能出现中文，或者不能输入中文

import json
import urllib2
"""import urllib2
web = urllib2.urlopen(‘http://www.baidu.com‘)
content = web.read()
fi = open("d:\\c.html",‘w‘)
fi.write(content)
fi.close()

"""
def get(cityname):
    try:
        city={‘南京‘:101190101,‘北京‘:101010100}
        return city[cityname]
    except:
        return 0
     
while 1:
    cityname = raw_input("请输入要查询的城市天气？\n")
    citycode = get(cityname)
    if citycode:
        url = (‘http://www.weather.com.cn/data/cityinfo/%s.html‘%citycode)
        content = urllib2.urlopen(url).read()
        data = json.loads(content)
        result = data[‘weatherinfo‘]
        str_temp = ‘%s:\n %s\n 最高温度: %s\n 最低温度: %s\n‘%(  ##就是这里不成出现汉字！！！！
        result[‘city‘],
        result[‘weather‘],
        result[‘temp1‘],
        result[‘temp2‘]
        )
        #  str_temp = unicode(str_temp, "gb18030")
##        fi = open("d:\\cc.txt",‘w‘)
##        fi.write(str_temp)
##        fi.close()
        print str_temp
    else:
        print "城市错误！"