mac安装python3及虚拟环境

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1.下载python3,官网地址:www.python.org/ 傻瓜式安装后,

解释器路径: /Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9

2,安装虚拟环境

pip3 install virtualenv
测试你的安装: virtualenv --version
pip3 install virtualenvwrapper
查看安装路径: which virtualenv 
查找脚本文件: which virtualenvwrapper.sh 
#ptrhon虚拟环境配置
export WORKON_HOME='~/.virtualenvs'
export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3
export VIRTUALENVWRAPPER_VIRTUALENV=/Library/Frameworks/Python.framework/Versions/3.9/bin/virtualenv
source /Library/Frameworks/Python.framework/Versions/3.9/bin/virtualenvwrapper.sh #source `which virtualenvwrapper.sh`

创建虚拟环境,

mkvirtualenv fastapiEnv
workon env02 需要切换的目的环境
rmvirtualenv env01 移除子虚拟环境文件
退出环境 deactivate

mac设置PyCharm创建文件时自动添加头文件

找到该路径并添加以下信息
pycharm-> preference -> Editor -> File and Code Templates -> Python Script 

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
@Author  : huzhipeng
@Time    : 2021/7/9 下午2:43
@File    : brand.py
@Software: PyCharm
"""