Python install pip, set up HTTP proxy, download third-party libraries, etc.

The environment is: under Win7, the company's intranet needs to pass HTTP proxy and authentication, and requires SSL certificate to access external HTTPS websites

The goal is: Download the third-party library Pillow for the installed python3.6

After reading a lot of article clips with different backgrounds on the Internet, I tried a lot of combinations and finally succeeded. Let’s record the format and path first:

1. Enter the python script directory:

c:> cd /d D:\Programs\Python36\Scripts

 2, install pip, execute the command

easy_install.exe pip

 3. Execute the pip command to install the third-party library Pillow. The final format is:

pip install --proxy http://usernamexxx:passwordxxx@proxyip:proxyport --cert C:\xxxx.cer Pillow

 Attached, successfully downloaded the installation log:

Collecting Pillow
  Downloading Pillow-4.3.0-cp36-cp36m-win32.whl (1.4MB)
    100% |████████████████████████████████| 1.4MB 40kB/s
Collecting olefile (from Pillow)
  Downloading olefile-0.44.zip (74kB)
    100% |████████████████████████████████| 81kB 32kB/s
Installing collected packages: olefile, Pillow
  Running setup.py install for olefile ... done
Successfully installed Pillow-4.3.0 olefile-0.44

 Attached, the proxy is well-formed, the logs for the missing SSL certificate:

Collecting Pillow
  Could not fetch URL https://pypi.python.org/simple/pillow/: There was a problem confirming the ssl
 certificate: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749) - skipping
  Could not find a version that satisfies the requirement Pillow (from versions: )
No matching distribution found for Pillow