Launch IPython in Julia

Usage

Run using IPython and then type . in empty julia> prompt or run IPython.start_ipython(). If you are using IPython 7.0 or above, you can switch back to Julia REPl by backspace or ctrl-h key (like other REPL modes). For older versions of IPython, exiting IPython as usual (e.g., ctrl-d) brings you back to the Julia REPL. Re-entering IPython keeps the previous state. Use pre-defined Main object to access Julia namespace from IPython.

Note: First launch of IPython may be slow.

Requirements

Julia

• PyCall

Python

• IPython (7.0 or above is recommended)

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()

Note: Until PyJulia 0.2 is released, I recommend using the master branch of PyJulia. See: JuliaPy/pyjulia#198

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

Configuration

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:

try:
    from ipython_jl.tools import JuliaModePrompt
except ImportError:
    pass
else:
    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.