pyznap setup failure

[jedi-nz]

Hi, I was wondering if someone could help me with this...

root@Ubuntu19:/home/mike# pyznap setup -p /etc/pyznap/
Traceback (most recent call last): File "/usr/local/bin/pyznap", line 6, in <module> from pyznap.main import main File "/usr/local/lib/python2.7/dist-packages/pyznap/main.py", line 18, in <module> from .utils import read_config, create_config File "/usr/local/lib/python2.7/dist-packages/pyznap/utils.py", line 14, in <module> from subprocess import Popen, PIPE, TimeoutExpired, CalledProcessError ImportError: cannot import name TimeoutExpired

[Yannick Boetzel]

pyznap needs python 3.5+, you installed it for python 2.7. Install it again using pip3 install --user pyznap (as your root user), then it should work without problem.

[jedi-nz]

Ok got it sorted.

mike@Ubuntu19:~$ sudo pip3 install --user pyznap
[sudo] password for mike:
Collecting pyznap Downloading https://files.pythonhosted.org/packages/11/60/cb90deef643313ace14cf78efbb0c9b5517664c3a3f7be36230ab1751020/pyznap-1.5.0-py3-none-any.whl
Installing collected packages: pyznap
The script pyznap is installed in '/root/.local/bin' which is not on PATH. Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pyznap-1.5.0
mike@Ubuntu19:~$ sudo setup -p /etc/pyznap
sudo: setup: command not found
mike@Ubuntu19:~$ sudo /root/.local/bin/pyznap setup -p /etc/pyznap
May 05 19:32:47 INFO: Starting pyznap...
May 05 19:32:47 INFO: Initial setup...
May 05 19:32:47 INFO: Creating directory /etc/pyznap...
May 05 19:32:47 INFO: Creating sample config /etc/pyznap/pyznap.conf...
May 05 19:32:47 INFO: Finished successfully...

Hopefully the fact that the script pyznap is not installed on PATH will not cause me any issues.

Thank you for your help.

[Yannick Boetzel]

If you run pyznap with cronjob, you can define the PATH in the cron file. Or simply always call pyznap with the full path /root/.local/bin/pyznap, then you wont have any problem.

[jedi-nz]

Hi Yannick can you help with this? I am running Ubuntu 22.04

root@mail:~# which pyznap
/usr/local/bin/pyznap
root@mail:~# /usr/local/bin/pyznap setup -p /etc/pyznap
Traceback (most recent call last):
  File "/usr/local/bin/pyznap", line 5, in <module>
    from pyznap.main import main
  File "/usr/local/lib/python2.7/dist-packages/pyznap/main.py", line 18, in <module>
    from .utils import read_config, create_config
  File "/usr/local/lib/python2.7/dist-packages/pyznap/utils.py", line 14, in <module>
    from subprocess import Popen, PIPE, TimeoutExpired, CalledProcessError
ImportError: cannot import name TimeoutExpired
root@mail:~# pip3 install --user pyznap
Command 'pip3' not found, but can be installed with:
apt install python3-pip
root@mail:~# apt install python3-pip
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
python3-pip is already the newest version (22.0.2+dfsg-1ubuntu0.4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

[jedi-nz]

Someone said I have to exit the root shell to use the --user option but that didn't work either:

mike@mail:~$ sudo pip3 install --user pyznap
[sudo] password for mike: 
sudo: pip3: command not found

[Yannick Boetzel]

The first error is because you installed pyznap for python 2.7, but it needs python 3. As your root user do pip3 install --user pyznap to install pyznap properly for python 3. You need to use root since pyznap needs root to run zfs commands.

[jedi-nz]

I solved it with

root@mail:/home/mike# /usr/bin/pip3.10 install --user pyznap
Collecting pyznap
  Downloading pyznap-1.6.0-py3-none-any.whl (39 kB)
Installing collected packages: pyznap
  WARNING: The script pyznap is installed in '/root/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pyznap-1.6.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv

It seems python3-pip may not have been installed correctly on my system.