$ curl -s https://stackoverflow.com/feeds/tag/python | gunzip -c | grep '<updated>'
    <updated>2017-04-06T18:08:48Z</updated>
        <updated>2017-04-06T18:08:35Z</updated>
        <updated>2017-04-06T18:07:37Z</updated>
        <updated>2017-04-06T18:07:36Z</updated>
        <updated>2017-04-06T18:06:42Z</updated>
        <updated>2017-04-06T18:04:48Z</updated>
        <updated>2017-04-06T18:04:48Z</updated>
        <updated>2017-04-06T18:04:45Z</updated>
        <updated>2017-04-06T18:03:49Z</updated>
        <updated>2017-04-06T18:03:16Z</updated>
        <updated>2017-04-06T18:02:42Z</updated>
        <updated>2017-04-06T18:02:18Z</updated>
        <updated>2017-04-06T18:02:11Z</updated>
        <updated>2017-04-06T18:02:09Z</updated>
        <updated>2017-04-06T18:02:01Z</updated>
        <updated>2017-04-06T18:00:22Z</updated>
        <updated>2017-04-06T17:59:59Z</updated>
        <updated>2017-04-06T17:58:44Z</updated>
        <updated>2017-04-06T17:58:11Z</updated>
        <updated>2017-04-06T17:57:59Z</updated>
        <updated>2017-04-06T17:57:56Z</updated>
        <updated>2017-04-06T17:57:28Z</updated>
        <updated>2017-04-06T17:57:11Z</updated>
        <updated>2017-04-06T17:56:55Z</updated>
        <updated>2017-04-06T17:56:24Z</updated>
        <updated>2017-04-06T17:55:53Z</updated>
        <updated>2017-04-06T17:55:35Z</updated>
        <updated>2017-04-06T17:54:59Z</updated>
        <updated>2017-04-06T17:54:09Z</updated>
        <updated>2017-04-06T17:53:57Z</updated>
        <updated>2017-04-06T17:51:04Z</updated>