What can You Learn in this Course?
Review of the previous assignment
Demonstration of data processing
Course Content
Review of the Previous Assignment
(Demonstration)
Demonstration of Data Processing
a = {
"data": [
{
"creator": {
"_id": "5cecd40dd23e194ab0867aab",
"name": "Martin",
"username": "cxt7777"
},
"updater": {
"_id": "5cecd40dd23e194ab0867aab",
"name": "Martin",
"username": "cxt7777"
},
"deleter": null,
"createTime": "2020-03-26T02:41:06.491Z",
"updateTime": "2020-03-26T02:46:27.825Z",
"deleteTime": null,
"_widget_1557886562320": "iPhone 11",
"_widget_1557886562335": "5998",
"_widget_1557886562350": "17",
"_id": "5e7c164229e01a00063be284",
"appId": "5e798363b587cc0006b40445",
"entryId": "5cdb765b5a6ae613aeed0f84"
},
{
"creator": {
"_id": "5cecd40dd23e194ab0867aab",
"name": "Martin",
"username": "cxt7777"
},
"updater": {
"_id": "5cecd40dd23e194ab0867aab",
"name": "Martin",
"username": "cxt7777"
},
"deleter": null,
"createTime": "2020-03-26T02:47:02.037Z",
"updateTime": "2020-03-26T02:47:02.037Z",
"deleteTime": null,
"_widget_1557886562320": "iPhone X",
"_widget_1557886562335": "4998",
"_widget_1557886562350": "5",
"_id": "5e7c17a650bccb0006441778",
"appId": "5e798363b587cc0006b40445",
"entryId": "5cdb765b5a6ae613aeed0f84"
},
{
"creator": {
"_id": "5cecd40dd23e194ab0867aab",
"name": "Martin",
"username": "cxt7777"
},
"updater": {
"_id": "5cecd40dd23e194ab0867aab",
"name": "Martin",
"username": "cxt7777"
},
"deleter": null,
"createTime": "2020-03-26T02:47:43.059Z",
"updateTime": "2020-03-26T02:47:43.059Z",
"deleteTime": null,
"_widget_1557886562320": "iPhone 8",
"_widget_1557886562335": "3998",
"_widget_1557886562350": "32",
"_id": "5e7c17cfcd87510006cf8189",
"appId": "5e798363b587cc0006b40445",
"entryId": "5cdb765b5a6ae613aeed0f84"
}
]
}
Data structure parsing
Assign the data to the variable "data_iphone"
Variable name | data_iphone |
Data type | Dictionary |
Key data type | String |
key | ‘data’ |
Access value by key | data_iphone[‘data’] |
Value data type | List |
value | [{‘creator’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘updater’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘deleter’: None, ‘createTime’: ‘2020-03-26T02:41:06.491Z’, ‘updateTime’: ‘2020-03-26T02:46:27.825Z’, ‘deleteTime’: None, ‘_widget_1557886562320’: ‘iPhone 11’, ‘_widget_1557886562335’: ‘5998’, ‘_widget_1557886562350’: ‘17’, ‘_id’: ‘5e7c164229e01a00063be284’, ‘appId’: ‘5e798363b587cc0006b40445’, ‘entryId’: ‘5cdb765b5a6ae613aeed0f84’}, {‘creator’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘updater’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘deleter’: None, ‘createTime’: ‘2020-03-26T02:47:02.037Z’, ‘updateTime’: ‘2020-03-26T02:47:02.037Z’, ‘deleteTime’: None, ‘_widget_1557886562320’: ‘iPhone X’, ‘_widget_1557886562335’: ‘4998’, ‘_widget_1557886562350’: ‘5’, ‘_id’: ‘5e7c17a650bccb0006441778’, ‘appId’: ‘5e798363b587cc0006b40445’, ‘entryId’: ‘5cdb765b5a6ae613aeed0f84’}, {‘creator’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘updater’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘deleter’: None, ‘createTime’: ‘2020-03-26T02:47:43.059Z’, ‘updateTime’: ‘2020-03-26T02:47:43.059Z’, ‘deleteTime’: None, ‘_widget_1557886562320’: ‘iPhone 8’, ‘_widget_1557886562335’: ‘3998’, ‘_widget_1557886562350’: ‘32’, ‘_id’: ‘5e7c17cfcd87510006cf8189’, ‘appId’: ‘5e798363b587cc0006b40445’, ‘entryId’: ‘5cdb765b5a6ae613aeed0f84’}] |
Parsing of data_iphone value
Variable name | data_iphone[‘data’] |
Data type | List |
Get the first data in the list | data_iphone[‘data’][0] |
Value of the first data in the list | {‘creator’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘updater’: {‘_id’: ‘5cecd40dd23e194ab0867aab’, ‘name’: ‘Martin’, ‘username’: ‘cxt7777’}, ‘deleter’: None, ‘createTime’: ‘2020-03-26T02:41:06.491Z’, ‘updateTime’: ‘2020-03-26T02:46:27.825Z’, ‘deleteTime’: None, ‘_widget_1557886562320’: ‘iPhone 11’, ‘_widget_1557886562335’: ‘5998’, ‘_widget_1557886562350’: ‘17’, ‘_id’: ‘5e7c164229e01a00063be284’, ‘appId’: ‘5e798363b587cc0006b40445’, ‘entryId’: ‘5cdb765b5a6ae613aeed0f84’} |
Data type of the first data in the list | Dictionary |
Value of the key '_widget_1557886562320' in the first data in the list | data_iphone['data'][0]['_widget_1557886562320'] |
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