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).
A context manager for managing things injected into
Store ipython references in the __builtin__ namespace.
Add a builtin and save the original.
Remove any builtins which might have been added by add_builtins, or restore overwritten ones to their previous values.
Remove an added builtin and re-set the original.