Mac显示sudo: pip: command not found
mac在安装完pip模块后，使用pip命令会提示sudo: pip: command not found
moyanzhudeMacBook-Pro:~ oosmart$ sudo pip install pymysql
sudo: pip: command not found
command not found，表示系统没有找到该模块，可能是系统没有安装该模块，也可能没有设置环境变量。
安装模块
如果安装该模块，可以跳过该步骤哦
需要去官网下载和Python相对应的pip的mac版本，然后按照默认路径安装即可。
配置环境变量或者直接运行
可以配置环境变量，然后使用pip命令
或者直接进入bin目录执行pip方法
#进入python的bin目录
moyanzhudeMacBook-Pro:~ moyan$ cd /Library/Frameworks/Python.framework/Versions/3.6/bin/ #多余效验
moyanzhudeMacBook-Pro:bin moyan$ ls
2to3 pydoc3 python3.6-config
2to3-3.6 pydoc3.6 python3.6m
easy_install-3.6 python3 python3.6m-config
idle3 python3-32 pyvenv
idle3.6 python3-config pyvenv-3.6
pip3 python3.6
pip3.6 python3.6-32
#多余效验
moyanzhudeMacBook-Pro:bin moyan$ pwd
/Library/Frameworks/Python.framework/Versions/3.6/bin #执行下面命令即可：
moyanzhudeMacBook-Pro:bin moyan$ ./pip3 install pymysql
Collecting pymysql
Downloading https://files.pythonhosted.org/packages/32/e8/222d9e1c7821f935d9f93a84f0b98afc219/PyMySQL-0.8.1-py2.py3-none-any.whl (81kB)
100% |████████████████████████████████| 81kB 295kB/s
Installing collected packages: pymysql
Successfully installed pymysql-0.8.1
You are using pip version 9.0.1, however version 10.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command. #出现这句话即安装成功
Successfully installed pymysql-0.8.1
遇到问题
安装的时候可能会遇到版本不匹配的问题，需要重新安装Python版本
Could not find a version that satisfies the requirement pymysql (from versions: )
No matching distribution found for pymysql