Directory for Perl kernel spec does not exist

[divyansshhh]

I'm trying to install this using cpanm Devel::IPerl and tried executing perl5/bin/iperl but that fails with the following error -

Directory for Perl kernel spec does not exist...
Failed to find share dir for dist 'Devel-IPerl' at ./bin/iperl line 72.

Also, no files are getting created in the ~/.local/share/jupyter/kernels directory. Any thoughts on what is going wrong?

[E7-87-83]

Are you using Windows? or Mac?

My main platform has been Ubuntu, anyway, I tried to install IPerl on Windows last weekend and got similar error messages. I "handcrafted" a kernel.json file according to the Perl code, and "cheated" the Jupyter to get started and provide an option of IPerl as one of the kernels, but still had errors ultimately.

[divyansshhh]

I am trying this out on rhel v8. Do let me know if more information is required.

[zmughal]

Sorry, just saw this. Yes, that error message is related to trying to create the kernel spec (well, actually it's about getting the logo). I might be able to make it continue gracefully if that happens. Though I'm not sure why that happened.

Just want to check, but why are you running it as ./bin/iperl? Is it not in your PATH? I just want to make sure that the correct script is being run.

---

I'm going to try to replicate all those environments and get back to you (@divyansshhh's RHEL v8, @E7-87-83's Windows).

You didn't have problems on Ubuntu did you, @E7-87-83?

Which version of Perl are you using perl -v? What about perl -MFile::ShareDir=99999?

---

An example in a Docker started with

docker run --rm -it  perl:5.38 bash -c 'apt-get update ;
  apt-get install -y --no-install-recommends libzmq5 jupyter-console jupyter-notebook jq;
  cpanm -nq Devel::IPerl;
  bash'

root@:/#  rm -Rf ~/.local/share/jupyter/kernels/iperl; cpanm -nq Devel::IPerl ; iperl ; ls ~/.local/share/jupyter/kernels/iperl; jq < ~/.local/share/jupyter/kernels/iperl/kernel.json; jupyter --help | grep 'subcommands'
Devel::IPerl is up to date. (0.012)
Directory for Perl kernel spec does not exist...
Jupyter console 6.4.4

IPerl!
In [1]: <Ctrl-D>
Do you really want to exit ([y]/n)? y
Shutting down kernel
kernel.json  logo-32x32.png  logo-64x64.png
{
  "argv": [
    "/usr/local/bin/perl",
    "-Mutf8",
    "-Mopen qw(:std :encoding(UTF-8))",
    "-MDevel::IPerl",
    "-e Devel::IPerl::main",
    "kernel",
    "{connection_file}"
  ],
  "language": "perl",
  "display_name": "IPerl 0.012",
  "iperl_version": "0.012"
}
Available subcommands: bundlerextension console execute migrate nbextension

[divyansshhh]

I missed this update, answering the questions -

1. perl version is -

This is perl 5, version 26, subversion 3 (v5.26.3) built for x86_64-linux-thread-multi
(with 58 registered patches, see perl -V for more detail)

2. Here's the output of perl -MFile::ShareDir=99999 -

╰─$ perl -MFile::ShareDir=99999
File::ShareDir version 99999 required--this is only version 1.104 at /usr/share/perl5/vendor_perl/Exporter/Heavy.pm line 125.
BEGIN failed--compilation aborted.

3. I added it to my PATH but I still encounter this error -

╭─choudhdi@narada28 ~/perl5/bin
╰─$ export PATH=/u/choudhdi/perl5/bin:$PATH                               255 ↵
╭─choudhdi@narada28 ~/perl5/bin
╰─$ cd
╭─choudhdi@narada28 ~
╰─$ iperl
Directory for Perl kernel spec does not exist...
Failed to find share dir for dist 'Devel-IPerl' at /u/choudhdi/perl5/bin/iperl line 72.

Please do let me know if there is any other info required.