Cumulative fixes for Python 3 and modern linux support.

[dobs]

Notably this should help resolve:

• Issues related to using python and pycompile rather than their Python 3 variants (see: Ubuntu 20 Install Fails #152).
• Updated HOWTO with new gnupg paths (see: make_deb.sh invalid invokation in make ubuntu #151).
• Issues attempting to install to /lib/systemd/system when not available.

The additions/deletions from pd-queue, pd-send and their *.py iterations are mostly just a copy, with a minor change in pd-queue to leverage six's iteritems.

[dobs]

Current status: Testing on RHEL 8 and Ubuntu 18 and 20 to confirm it resolves reported issues.

[Gleland]

Hello! Is this work still being considered? I'm also affected by issue #152 and saw that this hasn't been updated in a while.

[bzmw]

Sorry @Gleland , we are currently working to replace this project with https://github.com/PagerDuty/go-pdagent so we should consider the PR abandoned.

We left this open in case folks want to cherry-pick fixes from it.

[Gleland]

Thanks for the fast response, @bzmw ! Is there alternative documentation for the go instructions (other than the project's README)? For reference, I'm following these guides [0,1], which points to the python-based agent as the latest, and as being preferred over the perl agent.

[0] https://www.pagerduty.com/docs/guides/agent-install-guide/
[1] https://www.pagerduty.com/docs/guides/nagios-integration-guide/

[bzmw]

@Gleland currently there is not! We're actively working on update that documentation and more right now.