Add a non-intrusive button for python API documentation, which will remove ">>>" prompts and outputs of code - for easier copying of code.
For example: The below code-snippet in the document is difficult to copy due to ">>>" prompts
Becomes this - After the copybutton in the corner of of code-block is pressed - which is easier to copy
Sample Screenshot for reference: https://screenshots.firefox.com/ZfBXZrpINKdt9QZg/www269.lunapic.com
This can be easily done only by adding a copybutton.js script in python/docs/_static folder and calling it at setup time from python/docs/conf.py.