python从安装与使用pip到入门
官方下载地址:https://www.python.org/downloads/
下载后直接安装就可以了
再配一下环境变量,
cmd运行python -V (注意,这里是大写的V)
打开python跑一跑
如同php的composer和js的npm,python有pip
先在命令行运行pip
如果命令不存在,把python安装目录下的Scripts(.../Python\Python36-32\Scripts)加入环境变量,重启cmd运行pip -V试试
新建一个hello.py
在cmd运行
当在执行pip install xxx.whl时,
1.出现 error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools"
安装 Microsoft visual c++ 14.0
https://964279924.ctfile.com/fs/1445568-239446865
https://964279924.ctfile.com/fs/1445568-239446865
2.有时会报缺少lxml
lxml下载地址:https://pypi.org/project/lxml/4.4.2/#files
3.可能出现is not a supported wheel on this platform
AMD64
import pip._internal print(pip._internal.pep425tags.get_supported())