diff --git a/data/index.json b/data/index.json
index f1c77402100a50e2ae5574473e9b8ce146808be0..41ba3b0f9f9f843d17453ab902f277e1c400de58 100644
--- a/data/index.json
+++ b/data/index.json
@@ -140,6 +140,16 @@
       "level_name": "进阶",
       "router": "archit_02"
     },
+    {
+      "name": "Python后端工程师",
+      "level_name": "入门",
+      "router": "pythonbf_01"
+    },
+    {
+      "name": "Python后端工程师",
+      "level_name": "进阶",
+      "router": "pythonbf_02"
+    },
     {
       "name": "产品",
       "level_name": "入门",
diff --git a/data/package/job/algo.json b/data/package/job/algo.json
index b254cf6a19ba37f72c34626e5f53743a8d9c3f7f..9d0be5abe94f5fa65db42f524fd3277311f42a7f 100644
--- a/data/package/job/algo.json
+++ b/data/package/job/algo.json
@@ -2,6 +2,7 @@
   "type": "job",
   "package": "algo",
   "package_name": "算法工程师",
+  "enable": 1,
   "package_id": "pkg-algo-a6cf24cd008547a6918823e94ff7c815",
   "levels": [
     {
diff --git a/data/package/job/bi.json b/data/package/job/bi.json
index ab70cc3ca527c96028f497b7c7a200c7fe6fe01d..e9c6e735f6a9da03b331c6afa5439a10dbd67f7a 100644
--- a/data/package/job/bi.json
+++ b/data/package/job/bi.json
@@ -1,38 +1,38 @@
 {
-    "type": "job",
-    "package": "bi",
-    "package_name": "BI 工程师",
-    "package_id": "pkg-bi-9a7a46b309f34c9bb6265a38201107fb",
-    "levels": [
-        {
-            "level": "01",
-            "level_name": "入门",
-            "level_id": "pkg-bi-level-76c708906e844631a0083e4d8b8749ae",
-            "skill_trees": [
-                "gml",
-                "python",
-                "mysql"
-            ],
-            "recommend_skill_trees": [
-                "gml",
-                "python",
-                "pg"
-            ]
-        },
-        {
-            "level": "02",
-            "level_name": "进阶",
-            "skill_trees": [
-                "redis",
-                "pg",
-                "mongodb",
-                "hadoop",
-                "scala"
-            ],
-            "recommend_skill_trees": [
-                "pg"
-            ],
-            "level_id": "pkg-bi-level-0046fafee14640c7b5aa29cc97b17a8a"
-        }
-    ]
+  "type": "job",
+  "package": "bi",
+  "package_name": "BI 工程师",
+  "package_id": "pkg-bi-9a7a46b309f34c9bb6265a38201107fb",
+  "levels": [
+    {
+      "level": "01",
+      "level_name": "入门",
+      "level_id": "pkg-bi-level-76c708906e844631a0083e4d8b8749ae",
+      "skill_trees": [
+        "gml",
+        "python",
+        "mysql"
+      ],
+      "recommend_skill_trees": [
+        "gml",
+        "python",
+        "pg"
+      ]
+    },
+    {
+      "level": "02",
+      "level_name": "进阶",
+      "skill_trees": [
+        "redis",
+        "pg",
+        "mongodb",
+        "hadoop",
+        "scala"
+      ],
+      "recommend_skill_trees": [
+        "pg"
+      ],
+      "level_id": "pkg-bi-level-0046fafee14640c7b5aa29cc97b17a8a"
+    }
+  ]
 }
\ No newline at end of file
diff --git a/data/package/job/big_data.json b/data/package/job/big_data.json
index 01bb0a97506e45b6f880446b52f4ea1d727238e6..c8edee34163936da93b6c6699b435c7a7f2cb47b 100644
--- a/data/package/job/big_data.json
+++ b/data/package/job/big_data.json
@@ -26,13 +26,13 @@
       "level": "02",
       "level_name": "进阶",
       "skill_trees": [
-          "scala",
-          "spark",
-          "kafka",
-          "cassandra"
+        "scala",
+        "spark",
+        "kafka",
+        "cassandra"
       ],
       "recommend_skill_trees": [
-          "pg"
+        "pg"
       ],
       "level_id": "pkg-bigdata-level-8e2a8fb109424596a667bcc613db93c1"
     }
diff --git a/data/package/job/cpp.json b/data/package/job/cpp.json
index 2165370a08cdc882b20f5140308a34152b51b3b9..02ef2d51b029908d8452df348452d4a0412a5cfc 100644
--- a/data/package/job/cpp.json
+++ b/data/package/job/cpp.json
@@ -26,12 +26,12 @@
       "level": "02",
       "level_name": "进阶",
       "skill_trees": [
-          "rust",
-          "go",
-          "devops",
-          "mysql",
-          "pg",
-          "redis"
+        "rust",
+        "go",
+        "devops",
+        "mysql",
+        "pg",
+        "redis"
       ],
       "recommend_skill_trees": [],
       "level_id": "pkg-cpp-level-0aef5db1bcca497789fbc1ab8863bd7d"
diff --git a/data/package/job/crawler.json b/data/package/job/crawler.json
index bba476e94401e41926198801d7c5a30d25f41103..5fe778c1ea8579df77488da57a09262dee4fe77e 100644
--- a/data/package/job/crawler.json
+++ b/data/package/job/crawler.json
@@ -1,6 +1,7 @@
 {
   "type": "job",
   "package": "crawler",
+  "enable": 1,
   "package_name": "爬虫工程师",
   "package_id": "pkg-crawler-b9e1875f7aa745ea88edfad5d94aa058",
   "levels": [
diff --git a/data/package/job/ios.json b/data/package/job/ios.json
index e1eea2d90c0b5ee00384a7ffc219eca2d8561c6f..b1522cf8b9293075131709735eb73dad6d02b7a6 100644
--- a/data/package/job/ios.json
+++ b/data/package/job/ios.json
@@ -9,11 +9,11 @@
       "level_name": "入门",
       "level_id": "pkg-ios-level-dd40b98b3ede4f738ac67b72b985b8b5",
       "skill_trees": [
-          "web",
-          "swift"
+        "web",
+        "swift"
       ],
       "recommend_skill_trees": [
-          "java"
+        "java"
       ]
     },
     {
diff --git a/data/package/job/machine_vision.json b/data/package/job/machine_vision.json
index 3d3833ece2e0cb8d1faba2ca92b7b918851586d8..b74d6a1f37b98a8491dc6e939ad87ffc807c159b 100644
--- a/data/package/job/machine_vision.json
+++ b/data/package/job/machine_vision.json
@@ -1,5 +1,6 @@
 {
   "type": "job",
+  "enable": 1,
   "package": "machinevision",
   "package_name": "机器视觉工程师",
   "package_id": "pkg-machinevision-3af1ca37ed494d74bd8a10ce2b8ee7ed",
diff --git a/data/package/job/nlp.json b/data/package/job/nlp.json
index 1acda2d57bb86efe21b719fbb3a1e9fc40bcacef..9117a938c3a80a88ecf769cfec2fedc33b94075a 100644
--- a/data/package/job/nlp.json
+++ b/data/package/job/nlp.json
@@ -1,5 +1,6 @@
 {
   "type": "job",
+  "enable": 1,
   "package": "nlp",
   "package_name": "自然语言处理工程师",
   "package_id": "pkg-nlp-aa902054724e4e7cb120b2a500c0cdad",
@@ -20,13 +21,13 @@
       "level": "02",
       "level_name": "进阶",
       "skill_trees": [
-          "nlp",
-          "opencv",
-          "neo4j",
-          "spark",
-          "mysql",
-          "redis",
-          "pg"
+        "nlp",
+        "opencv",
+        "neo4j",
+        "spark",
+        "mysql",
+        "redis",
+        "pg"
       ],
       "recommend_skill_trees": [
         "opencv",
diff --git a/data/package/job/php.json b/data/package/job/php.json
index 8a4193d2341e17dbfd4478af63ef2a0086714657..61d722f9968dd0db50926fe0d84dcb9aada87bc2 100644
--- a/data/package/job/php.json
+++ b/data/package/job/php.json
@@ -23,15 +23,15 @@
       "level": "02",
       "level_name": "进阶",
       "skill_trees": [
-          "go",
-          "java",
-          "springboot",
-          "pg",
-          "mongodb"
+        "go",
+        "java",
+        "springboot",
+        "pg",
+        "mongodb"
       ],
       "recommend_skill_trees": [
-          "java",
-          "pg"
+        "java",
+        "pg"
       ],
       "level_id": "pkg-php-level-3a99b53332c9429b8f32669e74ab9f35"
     }
diff --git a/data/package/job/python_backend.json b/data/package/job/python_backend.json
new file mode 100644
index 0000000000000000000000000000000000000000..0a6dc2a6e4c9e0bbe0045b58826ebc2ccd5ca05f
--- /dev/null
+++ b/data/package/job/python_backend.json
@@ -0,0 +1,38 @@
+{
+  "type": "job",
+  "package": "pythonbf",
+  "package_name": "Python后端工程师",
+  "levels": [
+    {
+      "level": "01",
+      "level_name": "入门",
+      "skill_trees": [
+        "gml",
+        "algorithm",
+        "python",
+        "pg"
+      ],
+      "recommend_skill_trees": [
+        "gml",
+        "algorithm",
+        "python",
+        "pg"
+      ],
+      "level_id": "pkg-pythonbf-level-db97b83b1c964b95ab28e36f7178fe9b"
+    },
+    {
+      "level": "02",
+      "level_name": "进阶",
+      "skill_trees": [
+        "python02",
+        "network"
+      ],
+      "recommend_skill_trees": [
+        "python02",
+        "network"
+      ],
+      "level_id": "pkg-pythonbf-level-6c049ab37db04088b4fac28dfddf1203"
+    }
+  ],
+  "package_id": "pkg-pythonbf-dfceceb7e1bb43d2a480cbafa14c6cf6"
+}
\ No newline at end of file
diff --git a/main.py b/main.py
index 93992d9d5859fb47c535a8f09ba0cc5222f9ec8c..ed1890cf6726adfc8f7163583eb55d381c9f1fb5 100644
--- a/main.py
+++ b/main.py
@@ -2,5 +2,5 @@ from src.main.package import Package
 
 if __name__ == '__main__':
     p = Package('data/package/')
-    # p.walk()
+    p.walk()
     p.list()