HTTP请求中的json协议体怎么写？

使用HTTP请求命令，协议体里面有一部分是个列表，怎么连接都提交不上去。麻烦大神给指点下

原始提交的字符串：{"request":{"source":"2000","data":{"orderOperateBaseList":[{'orderId': '296298334349', 'orderStatus': 8, 'orderType': 22},{'orderId': '296351554405', 'orderStatus': 29, 'orderType': 22},{'orderId': '296250613711', 'orderStatus': 8, 'orderType': 22},{'orderId': '296255530828', 'orderStatus': 8, 'orderType': 22},{'orderId': '296224325582', 'orderStatus': 8, 'orderType': 22},{'orderId': '296227220781', 'orderStatus': 29, 'orderType': 22},{'orderId': '296262445536', 'orderStatus': 29, 'orderType': 22},{'orderId': '296179297382', 'orderStatus': 16, 'orderType': 22},{'orderId': '296154546568', 'orderStatus': 29, 'orderType': 22},{'orderId': '296149808171', 'orderStatus': 29, 'orderType': 22},{'orderId': '296140996610', 'orderStatus': 29, 'orderType': 22},{'orderId': '296110159168', 'orderStatus': 29, 'orderType': 22},{'orderId': '293461070010', 'orderStatus': 19, 'orderType': 22},{'orderId': '293400945746', 'orderStatus': 29, 'orderType': 22},{'orderId': '295288049158', 'orderStatus': 29, 'orderType': 22},{'orderId': '295286008454', 'orderStatus': 16, 'orderType': 22},{'orderId': '295246991879', 'orderStatus': 29, 'orderType': 22},{'orderId': '295148526351', 'orderStatus': 19, 'orderType': 22},{'orderId': '295150836812', 'orderStatus': 19, 'orderType': 22},{'orderId': '293255369242', 'orderStatus': 16, 'orderType': 22}]},"requestSign":201}}

我使用了一个列表变量：post_list=[{'orderId': '296298334349', 'orderStatus': 8, 'orderType': 22},{'orderId': '296351554405', 'orderStatus': 29, 'orderType': 22},{'orderId': '296250613711', 'orderStatus': 8, 'orderType': 22},{'orderId': '296255530828', 'orderStatus': 8, 'orderType': 22},{'orderId': '296224325582', 'orderStatus': 8, 'orderType': 22},{'orderId': '296227220781', 'orderStatus': 29, 'orderType': 22},{'orderId': '296262445536', 'orderStatus': 29, 'orderType': 22},{'orderId': '296179297382', 'orderStatus': 16, 'orderType': 22},{'orderId': '296154546568', 'orderStatus': 29, 'orderType': 22},{'orderId': '296149808171', 'orderStatus': 29, 'orderType': 22},{'orderId': '296140996610', 'orderStatus': 29, 'orderType': 22},{'orderId': '296110159168', 'orderStatus': 29, 'orderType': 22},{'orderId': '293461070010', 'orderStatus': 19, 'orderType': 22},{'orderId': '293400945746', 'orderStatus': 29, 'orderType': 22},{'orderId': '295288049158', 'orderStatus': 29, 'orderType': 22},{'orderId': '295286008454', 'orderStatus': 16, 'orderType': 22},{'orderId': '295246991879', 'orderStatus': 29, 'orderType': 22},{'orderId': '295148526351', 'orderStatus': 19, 'orderType': 22},{'orderId': '295150836812', 'orderStatus': 19, 'orderType': 22},{'orderId': '293255369242', 'orderStatus': 16, 'orderType': 22}]