After installed azure-cli, some users' pip is down

[Sneezry]

Description

Outline the issue here:
After installed azure-cli, some users' pip is down.

In the screenshot, you may see we are trying to install pip, however, you can see the error is thrown when we call pip --version, and pip has been already broken.

I'm not sure if it is related, but I find a similar issue in one of Google's projects googleapis/google-cloud-python#1570

Environment summary

Install Method: How did you install the CLI? (e.g. pip, interactive script, apt-get, Docker, MSI, nightly)
Answer here:
pip install -r https://github.com/Azure/azure-cli/blob/master/packaged_releases/pip_requirements/0.2.5_python27.txt

CLI Version: What version of the CLI and modules are installed? (Use az --version)
Answer here:
azure-cli 2.0.3
As azure-cli is not installed correct, and pip is down, we cannot know modules' version on users' machine

OS Version: What OS and version are you using?
Answer here:
Microsoft Windows [Version 10.0.15063]

Shell Type: What shell are you using? (e.g. bash, cmd.exe, Bash on Windows)
Answer here:
cmd.exe

[derekbekoe]

@Sneezry this should be fixed in more recent versions of the CLI.
This error occurred during a transition in how we created the Python packages.