使用Python解码JSON时出错，导出jqGrid

I am trying to export a jqGrid to CSV. So far I added a button in the caption of the jqGrid that runs a javascript function directing to a CSV dowload url with a get request that has variables: 1) the url the JSON is located at and 2) the urlencoded headers from the jqGrid.I am trying to export a jqGrid to CSV. So far I