python利用pip安装包注意事项

1.需要把pip升级后再安装

相关命令

python -m pip install --upgrade pip

pip install --upgrade pip
pip install --upgrade wheel

注：部分软件需要使用pip3安装

eg:

pip3 install aiohttp

例如安装图像包

pip install Pillow

安装mysql

pip install mysql-connector-python-rf --allow-external mysql-connector-python

安装sqlalchemy--ORM数据库

 pip install sqlalchemy

C:\Users\basycai>python -m pip install --upgrade pip
Collecting pip
  Downloading pip-8.1.2-py2.py3-none-any.whl (1