Download address and installation process of various Python library installation packages for Windows version

When developing in Python (Windows environment), you will encounter a certain version of third-party libraries that need to be installed. In order to facilitate future search and installation, the summary is as follows:

Download address of various Python library installation packages for Windows version: http://www.lfd.uci.edu/~gohlke/pythonlibs/

1. Open cmd

2. Switch the current directory of cmd to Downloads, the command is cd Downloads

3 . Download the required third-party library from the link address at the beginning of the article. Taking SciPy as an example: 0.18.1 is the library version number; cp27 and cp35 correspond to Python2.7 and Python3.5 respectively; win32 and win_amd64 correspond to operating systems of 32-bit and 64-bit. bit, you should download it according to your computer configuration when downloading

4. In the command line window, enter: pip install Enter python in the line window to check the Python version number and operating system number you installed. For example, my configuration is: Python3.5, 64-bit, so download sci-0.18.1-cp35-cp35m-win_amd64.whl.

2) Pay attention to the interdependence between version libraries, that is, which library to install first, and which library to install later. Readers can make judgments based on the error message or the knowledge they have learned.