Run IPython inside Julia to exchange data interactively
6 Stars
Updated Last
1 Year Ago
Started In
April 2018

Launch IPython in Julia

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Example REPL session


Run using IPython and then type . in empty julia> prompt or run IPython.start_ipython(). You can switch back to Julia REPL by backspace or ctrl-h key (like other REPL modes). Re-entering IPython keeps the previous state. Use pre-defined Main object to access Julia namespace from IPython. Use py"..." string macro to access Python namespace from Julia.

Note: First launch of IPython may be slow.



  • PyCall


  • Python 3.7 or above
  • IPython 7.0 or above

Accessing Julia from Python

If simple Main.eval("...") and Main.<name> accessor is not enough, PyJulia is a nice way to access Julia objects from Python. For example, you can import any Julia package from Python:

>>> from julia import Base
>>> Base.banner()

For more advanced/experimental Julia-(I)Python integration, see ipyjulia_hacks.


Julia-mode like prompt

If you want IPython prompt to look like a part of Julia prompt, then add the following snippet in ~/.ipython/profile_default/ipython_config.py:

    from ipython_jl.tools import JuliaModePrompt
except ImportError:
    c.TerminalInteractiveShell.prompts_class = JuliaModePrompt

Then the prompt would then look like ipy 1> instead of In [1]:. It also removes Out[1]. Note that above setting does not change your normal IPython prompts.

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