Jupyter - ending multiline magic command in console

Question

In a Jupyter notebook, a "cell magic" command (prefixed with two percent signs) ends at the end of the cell and is automatically invoked:

But if I try the same thing in the Jupyter console, the command never ends, after any number of blank lines:

That only happens if I invoke IPython as jupyter console, though. If I invoke IPython directly as ipython, the cell magic command completes after one blank line:

For each example, the versions of Python and IPython are identical: Python 3.5.2 and IPython 6.1.0 on one machine (installed with pip), Python 3.4.5 and IPython 5.1.0 on another (installed with Conda).

Is this a bug? Or is there Jupyter default configuration somewhere for IPython that differs from IPython's own default configuration?

Just M · Accepted Answer · 2017-09-12 21:25:09Z

4

Yes, it is a bug, the cell magics are suppose to ends after 2 new lines. The Jupyter console is way under maintained – we are not aware of many people using it, and it has plenty of issues.

Technically I believe the jupyter console does not use (or respect) the "is_complete" message from the protocol that should tell it wether the snippet of code should be executed or if a newline should be inserted.

You can try to open a bug report, but the fix will probably not be implemented quickly unless someone does a PR.

answered Sep 12, 2017 at 21:25

Just M

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