Bug report

Bug summary

https://matplotlib.org/users/installing.html#building-on-windows is broken:

• Uses # instead of rem for comments.
• Tells users to install Python 3.5, despite Matplotlib git only supports building on Python 3.6+.
  • Bug: conda create -n "matplotlib_build" python=3.5
• I'm not sure if activate is deprecated in favor of conda activate.

Actual outcome

># if you want a qt backend, you also have to install pyqt (be aware that pyqt doesn't mix well if
'#' is not recognized as an internal or external command,
operable program or batch file.

>python setup.py bdist_wheel

Beginning with Matplotlib 3.1, Python 3.6 or above is required.

This may be due to an out of date pip.

Make sure you have pip >= 9.0.1.

Matplotlib version

• Operating system: Windows 10 x64
• Matplotlib version: Master dba2d7b
• Python version: 3.5 (this is the bug)