I've installed iPython via pip. However, it runs on Python 3. How do I get my system to differentiate between iPython and iPython3? I'd like iPython to run on Python 2.
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iPython is a python3 script itself so go to a terminal and type:
sudo nano /usr/local/bin/ipython
and change python3 into the default python and it'll run Python 2.
If that doesn't work, ensure you've got a compatible version of Python and iPython.
Fabby
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Assuming you've installed IPython 6.x, this answer of mine from Stack Overflow is relevant:
IPython 6+ requires Python 3.3+, so that's what it defaults to, and it will not open Python 2.x.
From the 6.x Series page in the IPython docs:
Important
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).
