KeyError cfg['python_packages']

[Andre Ruiz]

When deploying a charm built locally, I get the following error on the juju debug-log. The specific code that is throwing the error is in lib/charms/layer/basic.py:

if cfg['python_packages']:

This seems wrong as all the other config access throughout the file use the form of cfg.get('configname'), and it is probaly a bug.

I'm using the snap on Comsic:
Name Version Rev Tracking Publisher Notes
charm 2.5.1 318 stable johnsca classic

I checked https://github.com/juju-solutions/layer-basic/blob/master/lib/charms/layer/basic.py and this change was introduced about 5 months ago, so the question is why it's not breaking every build currently (on cosmic, at least).

unit-nextcloud-4: 10:20:21 DEBUG unit.nextcloud/4.install Found existing installation: charms.reactive 1.2.0
unit-nextcloud-4: 10:20:21 DEBUG unit.nextcloud/4.install Uninstalling charms.reactive-1.2.0:
unit-nextcloud-4: 10:20:21 DEBUG unit.nextcloud/4.install Successfully uninstalled charms.reactive-1.2.0
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install Successfully installed MarkupSafe-1.1.0 PyYAML-3.13 Tempita-0.5
.2 charmhelpers-0.19.8 charms.reactive-1.2.0 pip-8.1.2 pyaml-18.11.0 setuptools-39.0.1 setuptools-scm-1.17.0
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install Traceback (most recent call last):
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install File "/var/lib/juju/agents/unit-nextcloud-4/charm/hooks/insta
ll", line 8, in <module>
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install basic.bootstrap_charm_deps()
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install File "lib/charms/layer/basic.py", line 118, in bootstrap_char
m_deps
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install if cfg['python_packages']:
unit-nextcloud-4: 10:20:22 DEBUG unit.nextcloud/4.install KeyError: 'python_packages'
unit-nextcloud-4: 10:20:22 ERROR juju.worker.uniter.operation hook "install" failed: exit status 1
unit-nextcloud-4: 10:20:22 INFO juju.worker.uniter awaiting error resolution for "install" hook

[Andre Ruiz (andre-ruiz)]

Sorry I guess this is the wrong place for this bug. Uppon more investigation it seems that layers get downloaded from github in realtime and are not present on any package.

I will submit a pull request to the project on github.

This can be closed. Thank you.