pip package has an (inherited ?) dependency on graphic libs

[barbudor]

Hi

When pip-installing systemctl-mqtt on a system without graphics it fails as pycairo fails building.
Same with PyGObjects

Why is there a dependency on graphical libraries ?
Could this be removed ?

Thanks

[fphammerle]

Hi

$ git rev-parse HEAD
92f02a51a29b306bd56e53cc0e109e6af735fb0b
$ pipenv graph
pkg-resources==0.0.0
systemctl-mqtt==0.5.1.dev33+g92f02a5
  - dbus-python [required: <2, installed: 1.2.16]
  - paho-mqtt [required: <2, installed: 1.5.1]
  - PyGObject [required: <4, installed: 3.38.0]
    - pycairo [required: >=1.11.1, installed: 1.19.1]

Dependency on pycairo is inherited via PyGObject.

PyGObject is currently only providing the "main loop": https://github.com/fphammerle/systemctl-mqtt/blob/master/systemctl_mqtt/__init__.py#L288
https://github.com/fphammerle/systemctl-mqtt/blob/master/systemctl_mqtt/__init__.py#L318

Maybe dbus-python supports a different setup without PyGObject.

Do you maybe have a suggestion?

[barbudor]

Many thanks for your fast response.
I will investigate, and if I find a suggestion I will revert to you.

Thanks

[Rothammel]

I used sudo apt-get install libcairo2-dev and it works