如何从字典中删除两个重复项？

Question

我正在编写一个<roll where="house" session="114" datetime="2015-12-18T09:49:00-05:00"> </roll> 程序的reducer，它应该读取两个csv文件：MapReduce和all-bills.csv。我想要做的是从所有账单中删除未结账单中的值，以便我可以获得所有已付账单。

我所做的是将所有条目添加到我的reducer中的字典中。如何删除出现两次或更多次的条目，以便我只留下字典中的付费账单？

Answer 1

试试这个：

data =     (
);
paging =     {
    next = "https://graph.facebook.com/v2.8/holychildmusic/insights/page_fans?access_token=EAAIB5k3aWEEBAHBD9lZC5AAzZAVV8K8CGBfqaxcrLdZA7oZB2Gdar8cQphXj4VciloZAnZBKp5ZA59BmGloSNz847nFqZCTVsYZCl9rrOk88OnfCnDwwADKnkOO5EUhGumEbW96riHplgfBLdnZAEYmB2Qz4ZAH1sWbuftmGKDqPft4l5QAHSZAimIyI6sOHaKWiurRK201Af6NQCXGliZBsZAUYosUHttkUbo4CQZD&fields=read_insights&format=json&include_headers=false&period=lifetime&sdk=ios&show_description_from_api_doc=true&since=1487457711&until=1487716911";
    previous = "https://graph.facebook.com/v2.8/holychildmusic/insights/page_fans?access_token=EAAIB5k3aWEEBAHBD9lZC5AAzZAVV8K8CGBfqaxcrLdZA7oZB2Gdar8cQphXj4VciloZAnZBKp5ZA59BmGloSNz847nFqZCTVsYZCl9rrOk88OnfCnDwwADKnkOO5EUhGumEbW96riHplgfBLdnZAEYmB2Qz4ZAH1sWbuftmGKDqPft4l5QAHSZAimIyI6sOHaKWiurRK201Af6NQCXGliZBsZAUYosUHttkUbo4CQZD&fields=read_insights&format=json&include_headers=false&period=lifetime&sdk=ios&show_description_from_api_doc=true&since=1486939311&until=1487198511";
};