date - 将日期插入 URL 并获取该日期的货币数据

Question

我正在尝试编写一个函数，该函数从https://openexchangerates.org/收集某个日期的货币数据并将其作为字典返回。我有点卡在如何在 url 中插入日期的地方，它说 YYYY-MM-DD，然后如何将它放到 python 上。

任何帮助将不胜感激

到目前为止，我的代码如下：

def _fetch_exrates(date):
    import json
    import urllib.request
    f = urllib.request.urlopen('http://openexchangerates.org/api/historical/YYYY-MM-DD.json?app_id=188bd7b8d2634e4cb0602ab5b3c223e7')
    charset = f.info().get_param('charset', 'utf8')
    data = f.read()
    decoded = json.loads(data.decode(charset))
    print(json.dumps(decoded, indent=4))

import datetime 
print('Please but the year in the form of YYYY and the month as MM and day as DD')
a = int(input('choose a year :',))
b = int(input('choose a month :',))
c = int(input('choose a day :',))
date = datetime.date(a,b,c)
print(date)

Answer 1

def _fetch_exrates(year,month,day):
    import json
    import urllib.request
    f = urllib.request.urlopen('http://openexchangerates.org/api/historical/'+year+'-'+month+'-'+day+'.json?app_id=188bd7b8d2634e4cb0602ab5b3c223e7')
    charset = f.info().get_param('charset', 'utf8')
    data = f.read()
    decoded = json.loads(data.decode(charset))
    print(json.dumps(decoded, indent=4))

print('Please but the year in the form of YYYY and the month as MM and day as DD')
year = raw_input('choose a year :',)
month = raw_input('choose a month :',)
day = raw_input('choose a day :',)
_fetch_exrates(year,month,day)

然后使用上面的字符串构造它。