test.py

# coding=UTF-8
#!/usr/bin/env python
import io
import urllib
import json
import gzip
import time

url = 'http://data.taipei/youbike'
url = urllib.urlretrieve(url, "data.gz")
jdata = gzip.open('data.gz', 'r').read()
data = json.loads(jdata)

t = time.localtime()
timestamp = time.strftime('%Y%m%d-%H%M%S', t)

file = io.open(timestamp, 'w', encoding = 'UTF-8')

for site in data["retVal"]:
    s = data["retVal"][site]["sna"],",總停車格:",data["retVal"][site]["tot"],",可借數量:",data["retVal"][site]["sbi"]," 可停數量:",data["retVal"][site]["bemp"]
    s = s[0] + unicode(s[1], "utf-8") + s[2] + unicode(s[3], "utf-8") + s[4] + unicode(s[5], "utf-8") + s[6] + '\n'
    #print s
    #raw_input()
    file.write(s)

file.close()