[Bug 1972855] Re: lldb malfunctions due to faulty python path (ModuleNotFoundError: No module named 'lldb.embedded_interpreter')

[Patrick Fasano]

** Also affects: llvm-toolchain-14 (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: llvm-toolchain-15 (Ubuntu)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to llvm-toolchain-15 in Ubuntu.
https://bugs.launchpad.net/bugs/1972855

Title:
  lldb malfunctions due to faulty python path (ModuleNotFoundError: No
  module named 'lldb.embedded_interpreter')

Status in llvm-defaults package in Ubuntu:
  Confirmed
Status in llvm-toolchain-14 package in Ubuntu:
  New
Status in llvm-toolchain-15 package in Ubuntu:
  New

Bug description:
  Starting lldb causes the following to happen:

  $ lldb
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
  ModuleNotFoundError: No module named 'lldb.embedded_interpreter'
  (lldb)

  This causes issues with, for instance, QtCreator, which stalls when
  trying to debug anything with lldb.

  lldb -P gives the following path:

  /usr/lib/local/lib/python3.10/dist-packages

  However, that path doesn't exist:

  $ ls -l /usr/lib/local/lib/python3.10/dist-packages
  ls: cannot access '/usr/lib/local/lib/python3.10/dist-packages': No such file or directory

  The package python3-lldb-14 provides this path, though:

  /usr/lib/llvm-14/lib/python3.10/dist-packages/

  Creating a symbolic link from /usr/lib/llvm-14/lib/python3.10/dist-
  packages/ to /usr/lib/local/lib/python3.10/dist-packages makes things
  work as expected:

  $ ls -l /usr/lib/local/lib/python3.10/dist-packages && lldb
  lrwxrwxrwx 1 root root 45 May 10 15:23 /usr/lib/local/lib/python3.10/dist-packages -> /usr/lib/llvm-14/lib/python3.10/dist-packages
  (lldb)

  Now QtCreator functions fine with lldb.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: lldb 1:14.0-55~exp2
  ProcVersionSignature: Ubuntu 5.15.0-27.28-lowlatency 5.15.30
  Uname: Linux 5.15.0-27-lowlatency x86_64
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Tue May 10 15:18:41 2022
  InstallationDate: Installed on 2015-02-26 (2630 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: llvm-defaults
  UpgradeStatus: Upgraded to jammy on 2022-05-02 (7 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/llvm-defaults/+bug/1972855/+subscriptions