ImportError: No module named 'dns.exception'

[mtesseract]

Hi,

I have just installed zmon-cli via pip3. It seems to have completed successfully:

[...] Successfully installed cffi-1.8.3 clickclick-1.2.1 cryptography-1.5.2 dnspython-1.15.0 dnspython3-1.15.0 easydict-1.6 keyring-10.0.2 pycparser-2.16 setuptools-28.6.1 zmon-cli-1.0.57

Running zmon-cli --version fails with the following stack trace:

$ zmon --version
Traceback (most recent call last):
  File "/usr/local/bin/zmon", line 7, in <module>
    from zmon_cli.main import main
  File "/usr/local/lib/python3.5/dist-packages/zmon_cli/main.py", line 3, in <module>
    from zmon_cli.cmds import cli
  File "/usr/local/lib/python3.5/dist-packages/zmon_cli/cmds/__init__.py", line 1, in <module>
    from zmon_cli.cmds.command import cli
  File "/usr/local/lib/python3.5/dist-packages/zmon_cli/cmds/command.py", line 10, in <module>
    from zmon_cli.config import DEFAULT_CONFIG_FILE
  File "/usr/local/lib/python3.5/dist-packages/zmon_cli/config.py", line 7, in <module>
    import zign.api
  File "/usr/local/lib/python3.5/dist-packages/zign/api.py", line 5, in <module>
    import stups_cli.config
  File "/usr/local/lib/python3.5/dist-packages/stups_cli/config.py", line 2, in <module>
    import dns.exception
ImportError: No module named 'dns.exception'

Anything I have done wrong here?

Thanks, Moritz

[mohabusama]

You will need to reinstall dnspython3

pip3 install -U --force-reinstall dnspython3

[mtesseract]

Thanks, that has solved the issue.

So ist that a missing dependency? Or should that note be added to the manual?

[mohabusama]

It is used by a dependency (zign), which probably was installed with older version. So, not specifically related to zmon-cli.

[mtesseract]

I understand. For me this issue is solved.

But personally I think it would be an improvement to add a note to the manual. Following the manual step by step and beeing greeted with stack traces without any mention of this in the manual does not give the best user experience.