# python_study

**Repository Path**: xiaoyi-study/python-study

## Basic Information

- **Project Name**: python_study
- **Description**: No description available
- **Primary Language**: Python
- **License**: Not specified
- **Default Branch**: dev
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2019-12-11
- **Last Updated**: 2025-06-17

## Categories & Tags

**Categories**: Uncategorized

**Tags**: Python

## README

# python_study

# 组件

技术 | 说明        | 官网
----|-----------|----
 PySnooper| 调试，展示调用详情 | https://github.com/cool-RR/PySnooper
 Salvo|  a simple command line tool to send some load to an HTTP(S) endpoint.| https://github.com/tarekziade/salvo
#### pip安装

```
python3 get-pip.py --user -i https://pypi.douban.com/simple/
```
如果报错ModuleNotFoundError: No module named 'distutils.util'

```
sudo apt-get install python3-distutils
```
加入到环境变量

```
/home/eric/.local/bin/
```
##### 升级pip

```
/usr/bin/python3 -m pip install --upgrade pip -i https://pypi.douban.com/simple/
```

#### 依赖安装
格式化
```
pip3  install  pylint --user -i https://pypi.douban.com/simple/
```

```
pip install --user -r requirements.txt  -i https://pypi.douban.com/simple/
```

性能测试
```shell
pip install salvo
```
salvo http://localhost:5000 -c 10 -n 100

#### 我折腾过的知识
1. pyforest 插件，import懒加载
1. 图像处理：生成词云、生成照片墙
1. python可以使用函数作为参数使用，可以理解为回调函数？
    ```python
    class _WorkItem(object):
    def __init__(self, future, fn, args, kwargs):
        self.future = future
        # 下面这个是函数形参
        self.fn = fn
        self.args = args
        self.kwargs = kwargs

    def run(self):
        if not self.future.set_running_or_notify_cancel():
            return

        try:
            # 把参数传入函数
            result = self.fn(*self.args, **self.kwargs)
        except BaseException as exc:
            self.future.set_exception(exc)
            # Break a reference cycle with the exception 'exc'
            self = None
        else:
            self.future.set_result(result)
    
    ```
1. python 连接rabbitmq
1. [Python 动态变量名定义与调用](https://www.runoob.com/w3cnote/python-dynamic-var.html)