85 lines
1.7 KiB
Markdown
85 lines
1.7 KiB
Markdown
# 常见模块
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## 网络请求requests
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```python
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# request
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import requests
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# 会话保持
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session = requests.session()
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# 设置header
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session.headers.update(headers)
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session.post(url, data=data)
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```
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===这个库是同步===
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* session持久化到本地
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```python
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import pickle
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import requests
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session = requests.Session()
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# 序列化成二进制文件
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with open('session.pkl', 'wb') as f:
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pickle.dump(session, f)
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# 反序列化
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with open('session.pkl', 'wb') as f:
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pickle.dump(session, f)
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response = session.get('https://httpbin.org/get')
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print(response.json())
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```
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## httpx
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https://www.python-httpx.org/
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支持同步&异步 `API`，同时支持 `HTTP/1.1` 和 `HTTP/2`。
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## 日志模块
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```python
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# python 已内置
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import logging
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# 日志模块
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logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s")
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logger = logging.getLogger()
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```
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```python
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# 兼容pm2使用流模式
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import logging
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import sys
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# 创建一个logger
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logger = logging.getLogger("test")
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# 创建一个handler，将日志发送到stdout
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stdout_handler = logging.StreamHandler(sys.stdout)
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# 创建一个formatter，定义日志输出格式
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formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
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# 将formatter添加到handler
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stdout_handler.setFormatter(formatter)
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# 将handler添加到logger
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logger.addHandler(stdout_handler)
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# 设置日志级别（可选）
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logger.setLevel(logging.INFO)
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```
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## 验证码
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```python
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import ddddocr
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ocr = ddddocr.DdddOrc
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code = ocr.classification (二进制文件流)
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```
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## uvicorn
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> 一个专门用于为ASGI应用提供服务的Web服务器实现,它非常快,支持HTTP/2,可以与FastAPI等框架配合使用。 |