How to install pip and create virtualenv on Windows without administrative permission

Since Python 2.7.9, pip is released together with the Python. But I still cannot find it when our administrator installed the latest python on my PC. How to install pip, then create virtualenv on Windows without the administrative permission?

1. Download get-pip.py.
2. Run python get-pip.py --user. It will install pip locally.
3. Install virtualenv by running python -m pip install --user virtualenv. This will install the package of virtualenv
4. Run python -m virtualenv ENV to create a new virtual environment. ENV is a directory to place the new virtual environment.
5. Activate the script by running ENV/Scripts/activate.bat.

Now you are in the new virtualenv that is isolated from the python that was used to create it.
You can then install python package by running pip install ... as usual.