库: 安装的位置在python的目录,lib/site_packge
1.第三方的库 别人写的,上传到了特定的地方,额外的安装它 django restframework flask-restful mock
pip install selenium==3.11.0
pip install requests
pip install Appium-Python-Client
pip install mock
pip install MySQL-python
pip install flask
pip install flask-restful
pip install django
pip install scrapy
pip install xlrd
卸载:
pip uninstall selenium
库的地址:https://pypi.org/project/MySQL-python/
安装方式:
1、在线安装 通过pip
2、离线安装 先去网上下载下来,然后解压,进入到目录下面,输入python setup.py install
python setup.py install
2.标准库,安装了python以后,不需要在进行安装的,是python自己带的库
os
sys
time
dict-->字典
http://www.cnblogs.com/weke/articles/6753296.html
json HTTP