diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/autoscraper_desc.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/autoscraper_desc.json"
index 06f87988f78620c788e67c37729598654137d147..023476b134ca813023304d340ff74756a56c8851 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/autoscraper_desc.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/autoscraper_desc.json"
@@ -1,7 +1,8 @@
 {
-    "source": "autoscraper_desc.md",
-    "depends": [],
-    "type": "code_options",
-    "author": "zxm2015",
-    "notebook_enable": true
+  "source": "autoscraper_desc.md",
+  "depends": [],
+  "type": "code_options",
+  "author": "zxm2015",
+  "notebook_enable": true,
+  "exercise_id": "a2d97921e2834f8685ac32666882b173"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/config.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/config.json"
index 42d7c05a641f8498c8e3817d6c73c5e0011025e5..9c167b400a7042b2bf03b17694ab7fba9404de0a 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/config.json"
@@ -1,9 +1,13 @@
 {
-    "export": ["autoscraper_desc.json", "hello_autoscraper.json"],
-    "keywords": [],
-    "children": [],
-    "keywords_must": [
-      "autoscraper"
-    ],
-    "keywords_forbid": []
+  "export": [
+    "autoscraper_desc.json",
+    "hello_autoscraper.json"
+  ],
+  "keywords": [],
+  "children": [],
+  "keywords_must": [
+    "autoscraper"
+  ],
+  "keywords_forbid": [],
+  "node_id": "python-7330398a1359430c9b02244f689203c7"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/hello_autoscraper.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/hello_autoscraper.json"
index 855c9906222ee63ca42d022e166817f8993f8dab..6a7042f62308dec538b700c0c67b2124e52bcf87 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/hello_autoscraper.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/12.autoscraper/hello_autoscraper.json"
@@ -1,7 +1,8 @@
 {
-    "source": "hello_autoscraper.md",
-    "depends": [],
-    "type": "code_options",
-    "author": "zxm2015",
-    "notebook_enable": true
+  "source": "hello_autoscraper.md",
+  "depends": [],
+  "type": "code_options",
+  "author": "zxm2015",
+  "notebook_enable": true,
+  "exercise_id": "ebb3997cbcdb4b128ab13a9ae2b8eace"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/config.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/config.json"
index 1d44cedf30cfcb91fc4086e0d61bad323bc04f9f..02304bbd9791f78aa08329207f56a891d8a93a99 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/config.json"
@@ -1,9 +1,13 @@
 {
-    "export": ["selectolax_desc.json", "hello_selectolax.json"],
-    "keywords": [],
-    "children": [],
-    "keywords_must": [
-      "selectolax"
-    ],
-    "keywords_forbid": []
+  "export": [
+    "selectolax_desc.json",
+    "hello_selectolax.json"
+  ],
+  "keywords": [],
+  "children": [],
+  "keywords_must": [
+    "selectolax"
+  ],
+  "keywords_forbid": [],
+  "node_id": "python-113824a228cf45f9b4f6e854a992c2f9"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/hello_selectolax.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/hello_selectolax.json"
index 4c6179e87bae1cdc1742ce1ed711058c5af4a009..90649089868ae2bd27cbdd22301e1680bae6c62e 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/hello_selectolax.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/hello_selectolax.json"
@@ -1,7 +1,8 @@
 {
-    "source": "hello_selectolax.md",
-    "depends": [],
-    "type": "code_options",
-    "author": "zxm2015",
-    "notebook_enable": true
+  "source": "hello_selectolax.md",
+  "depends": [],
+  "type": "code_options",
+  "author": "zxm2015",
+  "notebook_enable": true,
+  "exercise_id": "4f343f67ddfd44c4a62bd857b6de8055"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/selectolax_desc.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/selectolax_desc.json"
index f05a79fd311435ca33b83a73febb4412aa6ebeb9..a6ab6b081dea86b4771448b32085cb6ee3c405f7 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/selectolax_desc.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/13.selectolax/selectolax_desc.json"
@@ -1,7 +1,8 @@
 {
-    "source": "selectolax_desc.md",
-    "depends": [],
-    "type": "code_options",
-    "author": "zxm2015",
-    "notebook_enable": true
+  "source": "selectolax_desc.md",
+  "depends": [],
+  "type": "code_options",
+  "author": "zxm2015",
+  "notebook_enable": true,
+  "exercise_id": "ab5fa16b598d4741b5891a5c78327c5c"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/config.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/config.json"
index 3f808504c2db64ad77cc17063f704053a6c3a889..200ea9696bd91dbf31f542712185746c45ed2fc2 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/config.json"
@@ -1,9 +1,13 @@
 {
-    "export": ["requests_html_desc.json", "hello_requests_html.json"],
-    "keywords": [],
-    "children": [],
-    "keywords_must": [
-      "requests-html"
-    ],
-    "keywords_forbid": []
+  "export": [
+    "requests_html_desc.json",
+    "hello_requests_html.json"
+  ],
+  "keywords": [],
+  "children": [],
+  "keywords_must": [
+    "requests-html"
+  ],
+  "keywords_forbid": [],
+  "node_id": "python-7d8a025ed5434ecc84708407e3db6d17"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/hello_requests_html.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/hello_requests_html.json"
index 4fd4c51be19fff056bf8505d37ce8d8c13dd0c4e..4e9000c8cc2dab874ca7770d693ddabca9a30fce 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/hello_requests_html.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/hello_requests_html.json"
@@ -1,7 +1,8 @@
 {
-    "source": "hello_requests_html.md",
-    "depends": [],
-    "type": "code_options",
-    "author": "zxm2015",
-    "notebook_enable": true
+  "source": "hello_requests_html.md",
+  "depends": [],
+  "type": "code_options",
+  "author": "zxm2015",
+  "notebook_enable": true,
+  "exercise_id": "3be37bd2bf654159bb645bf5bb3b37b1"
 }
\ No newline at end of file
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/requests_html_desc.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/requests_html_desc.json"
index 4b51197fb67ba6923a37211086d2a571992d6929..914ef05ebc87af8f163fa7a3c904806508942392 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/requests_html_desc.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/14.requests-html/requests_html_desc.json"
@@ -1,7 +1,8 @@
 {
-    "source": "requests_html_desc.md",
-    "depends": [],
-    "type": "code_options",
-    "author": "zxm2015",
-    "notebook_enable": true
+  "source": "requests_html_desc.md",
+  "depends": [],
+  "type": "code_options",
+  "author": "zxm2015",
+  "notebook_enable": true,
+  "exercise_id": "cdbc8c719a4d4fe5846d349008dccf91"
 }
\ No newline at end of file
diff --git a/data/tree.json b/data/tree.json
index f29071698d34a6b37aa35ff2eb67d63dc3732fec..78b184787a4c3bcdc0653106021df8c80287639b 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -6767,6 +6767,39 @@
                       "keywords_must": [],
                       "keywords_forbid": []
                     }
+                  },
+                  {
+                    "autoscraper": {
+                      "node_id": "python-e49fbc09553a4bcd99bf030e75e4749b",
+                      "keywords": [],
+                      "children": [],
+                      "keywords_must": [
+                        "autoscraper"
+                      ],
+                      "keywords_forbid": []
+                    }
+                  },
+                  {
+                    "selectolax": {
+                      "node_id": "python-0163feb653a249a199660392925d6889",
+                      "keywords": [],
+                      "children": [],
+                      "keywords_must": [
+                        "selectolax"
+                      ],
+                      "keywords_forbid": []
+                    }
+                  },
+                  {
+                    "requests-html": {
+                      "node_id": "python-7aa6fabdc7ee4cafb2beb99f817163da",
+                      "keywords": [],
+                      "children": [],
+                      "keywords_must": [
+                        "requests-html"
+                      ],
+                      "keywords_forbid": []
+                    }
                   }
                 ],
                 "keywords_must": [],