diff --git a/README.md b/README.md
index d205746..d51d043 100644
--- a/README.md
+++ b/README.md
@@ -340,54 +340,203 @@ grp.GET("", []fizz.OperationOption{
 }, tonic.Handler(ListFruits, 200))
 ```
 
+##### 4. main函数将以上逻辑串起来
+
+```go
+func main() {
+    router, err := NewRouter()
+    if err != nil {
+        log.Fatal(err)
+    }
+    srv := &http.Server{
+        Addr:    ":4242",
+        Handler: router,
+    }
+    _ = srv.ListenAndServe()
+}
+
+// NewRouter returns a new router for the
+// Pet Store.
+func NewRouter() (*fizz.Fizz, error) {
+    engine := gin.New()
+    engine.Use(cors.Default())
+
+    fizz := fizz.NewFromEngine(engine)
+
+    // Override type names.
+    // fizz.Generator().OverrideTypeName(reflect.TypeOf(Fruit{}), "SweetFruit")
+
+    // Initialize the informations of
+    // the API that will be served with
+    // the specification.
+    infos := &openapi.Info{
+        Title:       "Fruits Market",
+        Description: `This is a sample Fruits market server.`,
+        Version:     "1.0.0",
+    }
+    // Create a new route that serve the OpenAPI spec.
+    fizz.GET("/openapi.json", nil, fizz.OpenAPI(infos, "json"))
+    fizz.GET("/doc", nil, func(ctx *gin.Context) {
+        ctx.Status(200)
+        ctx.Header("Content-Type", "text/html")
+        ctx.String(200, rapidoc)
+    })
+
+    // Setup routes.
+    routes(fizz.Group("/market", "market", "Your daily dose of freshness"))
+
+    if len(fizz.Errors()) != 0 {
+        return nil, fmt.Errorf("fizz errors: %v", fizz.Errors())
+    }
+    return fizz, nil
+}
+```
+
 #### 2. OAS的实现方式
 
 比较核心的地方有两个
 
-1. tonic.Handler 该方法使用reflect动态判断到传入的第一个参数，即第二步描述的Handler，根绝参数长度判断有无入参，根据返回值的长度判断有无返回值。如果有，则继续用reflect解析传入的struct，根据struct的tag描述出来各数据模型。如此的一个过程则基本上已经把一个接口的入参、返回能描述清楚。[关键代码](https://github.com/loopfz/gadgeto/blob/c4f8b2f64586099b9b281cbe99aa2f8b05e7d8b0/tonic/handler.go#L46)
+1. tonic.Handler 该方法使用reflect动态判断到传入的第一个参数，即第二步描述的Handler，根绝参数长度判断有无入参，根据返回值的长度判断有无返回值。如果有，则继续用reflect解析传入的struct，根据struct的tag描述出来各数据模型。如此的一个过程则基本上已经把一个接口的入参、返回能描述清楚。[关键代码](https://github.com/loopfz/gadgeto/blob/c4f8b2f64586099b9b281cbe99aa2f8b05e7d8b0/tonic/handler.go#L308)
 
     另外，由于已经拿到了Handler的所有信息，包括入参的具体类型信息。所以还为我们提供了一个非常有用的额外能力：通过tag的描述，直接把各个位置的Parameters和RequestBody的值取到，然后把取到的Value设置到函数入参的指针里。所以我们可以在Handler中直接使用第二个参数中的值，无需自己再另行反序列化或者绑定操作。[关键代码](https://github.com/loopfz/gadgeto/blob/c4f8b2f64586099b9b281cbe99aa2f8b05e7d8b0/tonic/handler.go#L50)
 2. fizz.OperationOption 库提供了一系列的OperationOption，可以为第一步的信息增加更多的对OpenAPI的支持。再配合上二次封装的Router，即可获取到整个OAS请求的全部信息。
 
 #### 3. 优点
 
-WIP
+1. 开发流程很直观，比起纯粹的Gin项目开发额外需要改造的东西并不多，提供的有限的几个API上手也比较快
+2. 可以完全利用Gin提供的所有API，不失灵活性。
+3. 提供了 go-validator 和 一部分json_schema规则的校验。业务逻辑里不必再写取参数、参数校验部分的冗余代码，可以直接处理业务逻辑，且和接口文档严格保持一致。
 
 #### 4. 缺点
 
-WIP
+1. 知名度低，小众
+2. 因为struct中字段的各种描述信息只能在tag中描述，会导致tag写的很长，比较丑
+3. 参考代码信息，json_schema部分的支持不够完全，有些部分与go-validator共用一些字段可能会导致混乱
+4. 框架绑定死了，基本不能解耦
 
 ### 5. Django REST Framework
 
+Django项目是Python语言中最知名的Web框架，在2005年被开源以来，用户量非常庞大，目前Django社区依然非常活跃。
+
+Django REST Framework(以下简称DRF)是著名开源组织[encode](https://www.encode.io)在2011年专门面向Django用户开发REST API的需求而诞生的一套工具。
+
 #### 1. 开发过程
 
+创建python虚拟环境、Django项目初始化相关的流程由于比较冗长，涉及到的上下文信息比较多，这里就不再赘述，感兴趣可以去看[Django官方文档](https://docs.djangoproject.com/en/4.0/)和[Django REST Framework官方文档](https://www.django-rest-framework.org)，我们现在只关注他是怎么描述Schema的。
+
+在DRF中，描述数据model的结构叫做Serializer。官方提供了非常多的内置的序列化方法，包括各种可接受的数据类型，然后用户在定义Serializer的时候使用kwargs为各个参数字段添加约束信息。serializer.Serializer类本身提供了 request → serializer → response 数据流的转化能力。用户只需要继承这些能力即可。例如
+
+```python
+class SnippetSerializer(serializers.Serializer):
+    # int类型、只读、默认required=True
+    id = serializers.IntegerField(read_only=True)
+    # str类型、允许为空、最大长度限定100
+    title = serializers.CharField(required=False, allow_blank=True, max_length=100)
+    # bool类型、非必填字段
+    linenos = serializers.BooleanField(required=False)
+    # 限定入参的值只能是提供的枚举中的值、并指定了默认值
+    language = serializers.ChoiceField(choices=LANGUAGE_CHOICES, default='python')
+```
+
+也提供了直接继承Django Model的能力
+
+```python
+class Snippet(models.Model):
+    created = models.DateTimeField(auto_now_add=True)
+    title = models.CharField(max_length=100, blank=True, default='')
+    code = models.TextField()
+    linenos = models.BooleanField(default=False)
+    language = models.CharField(choices=LANGUAGE_CHOICES, default='python', max_length=100)
+    style = models.CharField(choices=STYLE_CHOICES, default='friendly', max_length=100)
+
+    class Meta:
+        ordering = ['created']
+
+
+class SnippetSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Snippet
+        fields = "__all__"
+```
+
 #### 2. OAS的实现方式
 
-WIP
+如上面的例子，基于Serializer的描述可以获取到各种类型的request body信息，加上django-filter和django的router可以得到完整的API描述信息。
 
 #### 3. 优点
 
-WIP
+1. 因为Serializer 与Django-ORM 的Model 可以结合在一起，大部分情况下，数据模型只需要定义一次，所有的地方都能得到约束，行为统一
+
+    如：上文Snippet类的title字段设置为max_length=100，那么接口入参的时候会校验长度，生成的文档中该参数也有对应的最大值，还有默认情况下数据库定义也会是varchar(20)
+2. 经过了10年以上的考验，基本上碰得到的问题都能够找得到答案。本身也提供了各种各样丰富的API让用户可以完成各种场景的需求。
+
+    光论开发效率的话，可能是笔者知道的开发效率最高的web框架了。简单场景下，从零到一实现一张表的所有增删改查接口，一共只需要不到十行代码。
 
 #### 4. 缺点
 
-WIP
+1. Python语言本身导致的性能低下。虽然Django提供了几乎整个WEB周期所需要的全部工具，开发体验一流，但是仍然不适用于要求性能的场景，Django的主战场可能还是CMS或者是用于一些产品的MVP版本快速试错。
+
+2. 隐晦性的声明太多，行为不够直观。历史包袱过重，未来发展的空间不大。
 
 ### 6. FastAPI
 
+[FastAPI](https://fastapi.tiangolo.com/)可以算是近两年python web框架中最炙手可热的明星项目了，上线仅3年多就已收获40000多star。得益于python3.5版本以来带来的async await异步关键字，和各种高性能的asyncio runtime的出现，性能上已经比传统的Flask等类似的微框架的表现有了极大的改观。
+
 #### 1. 开发过程
 
+##### 1. 编写业务逻辑main.py
+
+```python
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel, Field
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    id: Optional[int] = None
+    name: str = Field(description="The name of the item", regex="^[a-zA-Z0-9]*$")
+    price: float
+    is_offer: Optional[bool] = None
+
+
+@app.get("/")
+def read_root():
+    return {"Hello": "World"}
+
+
+@app.get("/items/{item_id}")
+def read_item(item_id: int, q: Optional[str] = None):
+    return {"item_id": item_id, "q": q}
+
+
+@app.post("/items")
+def create_item(item: Item) -> Item:
+    return item
+
+```
+
+##### 2. 使用uvicorn启动服务
+
+```bash
+uvicorn main:app
+```
+
 #### 2. OAS的实现方式
 
-WIP
+通过Python提供的类型注解功能，程序在启动的时候，就能够得到所有入参内容、和返回结果，包括他们的类型信息。开发体验更像是直接写好处理逻辑的函数，然后框架把这些函数按照一定的规则用HTTP的形式实现。
 
 #### 3. 优点
 
-WIP
+1. 所见即所得，开发接口的时候非常直观，效率很高，而且提供了十分丰富的其他功能使得参数可以复用。
+2. 设计清晰易懂，用户层面不需要知道太多细节，不强制添加对应的类型注解（当然对应的也就无法得到足够的文档信息）
+3. 可以直接利用python语言提供的强大生态资源。
 
 #### 4. 缺点
 
-WIP
+1. 除了语言与公司技术栈不太相符外，找不到明显的缺点。
 
 ### 7. Poem
 
diff --git a/python/fastapi_example/__pycache__/main.cpython-310.pyc b/python/fastapi_example/__pycache__/main.cpython-310.pyc
new file mode 100644
index 0000000..df7b223
Binary files /dev/null and b/python/fastapi_example/__pycache__/main.cpython-310.pyc differ
diff --git a/python/fastapi_example/main.py b/python/fastapi_example/main.py
new file mode 100644
index 0000000..76093c4
--- /dev/null
+++ b/python/fastapi_example/main.py
@@ -0,0 +1,28 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel, Field
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    id: Optional[int] = None
+    name: str = Field(description="The name of the item", regex="^[a-zA-Z0-9]*$")
+    price: float
+    is_offer: Optional[bool] = None
+
+
+@app.get("/")
+def read_root():
+    return {"Hello": "World"}
+
+
+@app.get("/items/{item_id}")
+def read_item(item_id: int, q: Optional[str] = None):
+    return {"item_id": item_id, "q": q}
+
+
+@app.post("/items")
+def create_item(item: Item) -> Item:
+    return item
diff --git a/python/fastapi_example/poetry.lock b/python/fastapi_example/poetry.lock
new file mode 100644
index 0000000..cca6e7a
--- /dev/null
+++ b/python/fastapi_example/poetry.lock
@@ -0,0 +1,229 @@
+[[package]]
+name = "anyio"
+version = "3.5.0"
+description = "High level compatibility layer for multiple asynchronous event loop implementations"
+category = "main"
+optional = false
+python-versions = ">=3.6.2"
+
+[package.dependencies]
+idna = ">=2.8"
+sniffio = ">=1.1"
+
+[package.extras]
+doc = ["packaging", "sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
+test = ["coverage[toml] (>=4.5)", "hypothesis (>=4.0)", "pytest (>=6.0)", "pytest-mock (>=3.6.1)", "trustme", "contextlib2", "uvloop (<0.15)", "mock (>=4)", "uvloop (>=0.15)"]
+trio = ["trio (>=0.16)"]
+
+[[package]]
+name = "asgiref"
+version = "3.5.0"
+description = "ASGI specs, helper code, and adapters"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+tests = ["pytest", "pytest-asyncio", "mypy (>=0.800)"]
+
+[[package]]
+name = "click"
+version = "8.0.4"
+description = "Composable command line interface toolkit"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.4"
+description = "Cross-platform colored terminal text."
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[[package]]
+name = "fastapi"
+version = "0.75.0"
+description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
+category = "main"
+optional = false
+python-versions = ">=3.6.1"
+
+[package.dependencies]
+pydantic = ">=1.6.2,<1.7 || >1.7,<1.7.1 || >1.7.1,<1.7.2 || >1.7.2,<1.7.3 || >1.7.3,<1.8 || >1.8,<1.8.1 || >1.8.1,<2.0.0"
+starlette = "0.17.1"
+
+[package.extras]
+all = ["requests (>=2.24.0,<3.0.0)", "jinja2 (>=2.11.2,<4.0.0)", "python-multipart (>=0.0.5,<0.0.6)", "itsdangerous (>=1.1.0,<3.0.0)", "pyyaml (>=5.3.1,<6.0.0)", "ujson (>=4.0.1,<5.0.0)", "orjson (>=3.2.1,<4.0.0)", "email_validator (>=1.1.1,<2.0.0)", "uvicorn[standard] (>=0.12.0,<0.16.0)"]
+dev = ["python-jose[cryptography] (>=3.3.0,<4.0.0)", "passlib[bcrypt] (>=1.7.2,<2.0.0)", "autoflake (>=1.4.0,<2.0.0)", "flake8 (>=3.8.3,<4.0.0)", "uvicorn[standard] (>=0.12.0,<0.16.0)"]
+doc = ["mkdocs (>=1.1.2,<2.0.0)", "mkdocs-material (>=8.1.4,<9.0.0)", "mdx-include (>=1.4.1,<2.0.0)", "mkdocs-markdownextradata-plugin (>=0.1.7,<0.3.0)", "typer-cli (>=0.0.12,<0.0.13)", "pyyaml (>=5.3.1,<6.0.0)"]
+test = ["pytest (>=6.2.4,<7.0.0)", "pytest-cov (>=2.12.0,<4.0.0)", "mypy (==0.910)", "flake8 (>=3.8.3,<4.0.0)", "black (==21.9b0)", "isort (>=5.0.6,<6.0.0)", "requests (>=2.24.0,<3.0.0)", "httpx (>=0.14.0,<0.19.0)", "email_validator (>=1.1.1,<2.0.0)", "sqlalchemy (>=1.3.18,<1.5.0)", "peewee (>=3.13.3,<4.0.0)", "databases[sqlite] (>=0.3.2,<0.6.0)", "orjson (>=3.2.1,<4.0.0)", "ujson (>=4.0.1,<5.0.0)", "python-multipart (>=0.0.5,<0.0.6)", "flask (>=1.1.2,<3.0.0)", "anyio[trio] (>=3.2.1,<4.0.0)", "types-ujson (==0.1.1)", "types-orjson (==3.6.0)", "types-dataclasses (==0.1.7)"]
+
+[[package]]
+name = "h11"
+version = "0.13.0"
+description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[[package]]
+name = "idna"
+version = "3.3"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
+optional = false
+python-versions = ">=3.5"
+
+[[package]]
+name = "pydantic"
+version = "1.9.0"
+description = "Data validation and settings management using python 3.6 type hinting"
+category = "main"
+optional = false
+python-versions = ">=3.6.1"
+
+[package.dependencies]
+typing-extensions = ">=3.7.4.3"
+
+[package.extras]
+dotenv = ["python-dotenv (>=0.10.4)"]
+email = ["email-validator (>=1.0.3)"]
+
+[[package]]
+name = "sniffio"
+version = "1.2.0"
+description = "Sniff out which async library your code is running under"
+category = "main"
+optional = false
+python-versions = ">=3.5"
+
+[[package]]
+name = "starlette"
+version = "0.17.1"
+description = "The little ASGI library that shines."
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+anyio = ">=3.0.0,<4"
+
+[package.extras]
+full = ["itsdangerous", "jinja2", "python-multipart", "pyyaml", "requests"]
+
+[[package]]
+name = "typing-extensions"
+version = "4.1.1"
+description = "Backported and Experimental Type Hints for Python 3.6+"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[[package]]
+name = "uvicorn"
+version = "0.17.5"
+description = "The lightning-fast ASGI server."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+asgiref = ">=3.4.0"
+click = ">=7.0"
+h11 = ">=0.8"
+
+[package.extras]
+standard = ["websockets (>=10.0)", "httptools (>=0.2.0,<0.4.0)", "watchgod (>=0.6)", "python-dotenv (>=0.13)", "PyYAML (>=5.1)", "uvloop (>=0.14.0,!=0.15.0,!=0.15.1)", "colorama (>=0.4)"]
+
+[metadata]
+lock-version = "1.1"
+python-versions = "^3.10"
+content-hash = "37101b26a19ded2c6be0c1faa5eb281b94f6f6a32e3039b15c16f23f2c285956"
+
+[metadata.files]
+anyio = [
+    {file = "anyio-3.5.0-py3-none-any.whl", hash = "sha256:b5fa16c5ff93fa1046f2eeb5bbff2dad4d3514d6cda61d02816dba34fa8c3c2e"},
+    {file = "anyio-3.5.0.tar.gz", hash = "sha256:a0aeffe2fb1fdf374a8e4b471444f0f3ac4fb9f5a5b542b48824475e0042a5a6"},
+]
+asgiref = [
+    {file = "asgiref-3.5.0-py3-none-any.whl", hash = "sha256:88d59c13d634dcffe0510be048210188edd79aeccb6a6c9028cdad6f31d730a9"},
+    {file = "asgiref-3.5.0.tar.gz", hash = "sha256:2f8abc20f7248433085eda803936d98992f1343ddb022065779f37c5da0181d0"},
+]
+click = [
+    {file = "click-8.0.4-py3-none-any.whl", hash = "sha256:6a7a62563bbfabfda3a38f3023a1db4a35978c0abd76f6c9605ecd6554d6d9b1"},
+    {file = "click-8.0.4.tar.gz", hash = "sha256:8458d7b1287c5fb128c90e23381cf99dcde74beaf6c7ff6384ce84d6fe090adb"},
+]
+colorama = [
+    {file = "colorama-0.4.4-py2.py3-none-any.whl", hash = "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"},
+    {file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"},
+]
+fastapi = [
+    {file = "fastapi-0.75.0-py3-none-any.whl", hash = "sha256:43d12891b78fc497a50623e9c7c24640c569489f060acd9ce2c4902080487a93"},
+    {file = "fastapi-0.75.0.tar.gz", hash = "sha256:124774ce4cb3322841965f559669b233a0b8d343ea24fdd8b293253c077220d7"},
+]
+h11 = [
+    {file = "h11-0.13.0-py3-none-any.whl", hash = "sha256:8ddd78563b633ca55346c8cd41ec0af27d3c79931828beffb46ce70a379e7442"},
+    {file = "h11-0.13.0.tar.gz", hash = "sha256:70813c1135087a248a4d38cc0e1a0181ffab2188141a93eaf567940c3957ff06"},
+]
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diff --git a/python/fastapi_example/pyproject.toml b/python/fastapi_example/pyproject.toml
new file mode 100644
index 0000000..4340ddf
--- /dev/null
+++ b/python/fastapi_example/pyproject.toml
@@ -0,0 +1,16 @@
+[tool.poetry]
+name = "fastapi_example"
+version = "0.1.0"
+description = ""
+authors = ["CaptainNEO <tianpengfei@rcrai.com>"]
+
+[tool.poetry.dependencies]
+python = "^3.10"
+fastapi = "^0.75.0"
+uvicorn = "^0.17.5"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"