FileNotFoundError: [Errno 2] No such file or directory: 'zstdmt'

[suhaibmujahid]

Google Colab Notebook:

%pip install bugbug -qU

from bugbug import bugzilla, db

db.download(bugzilla.BUGS_DB)

Output:

---------------------------------------------------------------------------

FileNotFoundError                         Traceback (most recent call last)

<ipython-input-2-8f1d74dfb43d> in <cell line: 5>()
      3 from bugbug import bugzilla, db
      4 
----> 5 db.download(bugzilla.BUGS_DB)

5 frames

/usr/lib/python3.10/subprocess.py in _execute_child(self, args, executable, preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite, restore_signals, gid, gids, uid, umask, start_new_session)
   1861                     if errno_num != 0:
   1862                         err_msg = os.strerror(errno_num)
-> 1863                     raise child_exception_type(errno_num, err_msg, err_filename)
   1864                 raise child_exception_type(err_msg)
   1865 

FileNotFoundError: [Errno 2] No such file or directory: 'zstdmt'

Note
This does not seem to be a regression by #3723

The same error on version 0.0.516 (before start using zstdmt):

%pip install bugbug==0.0.516 -qU

from bugbug import bugzilla, db

db.download(bugzilla.BUGS_DB)

Output:

---------------------------------------------------------------------------

FileNotFoundError                         Traceback (most recent call last)

[<ipython-input-1-d5fc8a1dca0a>](https://localhost:8080/#) in <cell line: 5>()
      3 from bugbug import bugzilla, db
      4 
----> 5 db.download(bugzilla.BUGS_DB)

5 frames

[/usr/lib/python3.10/subprocess.py](https://localhost:8080/#) in _execute_child(self, args, executable, preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite, restore_signals, gid, gids, uid, umask, start_new_session)
   1861                     if errno_num != 0:
   1862                         err_msg = os.strerror(errno_num)
-> 1863                     raise child_exception_type(errno_num, err_msg, err_filename)
   1864                 raise child_exception_type(err_msg)
   1865 

FileNotFoundError: [Errno 2] No such file or directory: 'zstd'

[marco-c]

The zstandard binaries are required. The easiest fix is installing them through the package manager.

[suhaibmujahid]

The zstandard binaries are required. The easiest fix is installing them through the package manager.

Installing the package using pip (as suggested in #3708 (comment)) does not solve the problem in Colab because python package binaries is not listed in PATH:

! echo $PATH
/opt/bin:/usr/local/nvidia/bin:/usr/local/cuda/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/tools/node/bin:/tools/google-cloud-sdk/bin

However, installing the zstd package using apt solved the issue:

! apt install zstd