vskatusa has asked for the wisdom of the Perl Monks concerning the following question:

I have installed jupyter notebook in ubuntu 22.04 LTS and the kernels
  • R
  • Julia and
  • Python
    • works fine. However, I am struggling to install perl kernel.

    From google (I know not to be trusted) I installed packages as follows:


  • sudo apt install libzmq3-dev
  • sudo apt install cpanminus
  • export ARCHFLAGS='-arch x86_64'
  • cpanm --build-args 'OTHERLDFLAGS=' ZMQ::FFI
  • cpanm Devel::IPerl
  • iperl --version # install kernel and exit

    • The last command iperl --version does not exit but I see the following in the terminal

    $ iperl --version
    App::REPL _

    And just hangs in there - does not exit....It is supposed to exit and install the kernel
    Any help would be much appreciated.

    Replies are listed 'Best First'.
    Re: jupyter kernel perl
    by kcott (Archbishop) on Feb 15, 2023 at 04:33 UTC

      G'day vskatusa,

      REPL stands for read–eval–print loop. It hasn't hung; it's waiting for input from you. Did you try typing exit?

      Sorry, I know nothing about "jupyter notebook" itself; I can't help further.

      — Ken

    		[reply]
    [d/l]

        Jupyter

        «The Crux of the Biscuit is the Apostrophe»

    		[reply]
        Per line 43-49 of iperl, it ought to print the versions & exit, at least on the command line (do not know, nor do I care, how iperl --version would behave inside Jupyter machinery).
    		[reply]
    [d/l]
          Yes that was my understanding.....Well probably I will abandon perl kernel in jupyter. BTW this has nothing to do with jupyter. All it is supposed to do is install perl kernel
    		[reply]
    [reply]
    [d/l]
    Re: jupyter kernel perl [some suggestions]
    by kcott (Archbishop) on Feb 15, 2023 at 17:34 UTC

      Although I previously wrote that "I can't help further"; I was curious. Here's some suggestions which might get you a bit further.

      • Just telling us "From google ..." is not particularly helpful. I'm guessing a search led you to a forum/blog/etc. which provided the commands you posted. More information about that may help us to help you.
      • I would have started investigating from CPAN. Devel::IPerl is fairly sparse; following the link to the distribution, Devel-IPerl, provides a little more.
      • In README.md, I see "ZeroMQ", "Jupyter", and "CPAN" sections; your post indicates that you worked on "ZeroMQ" and "CPAN", but not "Jupyter". Is that something you need to revisit?
      • There's also a link to iperl. This has virtually no information. To be honest, that raises a red flag for me and doesn't fill me with confidence: is the code also incomplete?
      • The Issues link shows five bugs. See if there's anything useful for you.
      • The Repository link leads to a GitHub page. That appears to have more information than the CPAN page. See if there's anything useful here.
      • That GitHub page has an Issues link. This shows 37 open items. Again, see if there's anything useful for you.
      • The cpanm utility has a lot of options. Some of these may provide useful feedback: --verbose stands out in this regard.

      — Ken

    		[reply]
    [d/l]
        Ken, Thanks for your post. I installed everything to the T form README.md - no luck so far. I emailed the author as well.
    		[reply]

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