This documentation covers IPython versions 6.0 and higher. Beginning with version 6.0, IPython stopped supporting compatibility with Python versions lower than 3.3 including all versions of Python 2.7.
If you are looking for an IPython version compatible with Python 2.7, please use the IPython 5.x LTS release and refer to its documentation (LTS is the long term support release).
This section of IPython documentation will walk you through most of the IPython functionality. You do not need to have any deep knowledge of Python to read this tutorial, though some sections might make slightly more sense if you have already done some work in the classic Python REPL.
Some part of this documentation are more than a decade old so might be out of date, we welcome any report of inaccuracy, and Pull Requests that make that up to date.