OS X crash when sending notification

[RomanZhilich]

OS X crash when sending notification

[rinaldus]

Please, check my last commit 6ccb046. It seems that OS X have not 'notify-send' command. I changed the way to send notifications. Now the program requires additional library notify2 as dependency. Install it and it should be work.

[RomanZhilich]

Thanks for prompt response. I pulled latest changes, installed notify2, and now I get following error:

  File "/usr/local/lib/python3.6/site-packages/notify2.py", line 39, in <module>
    import dbus
ModuleNotFoundError: No module named 'dbus'

There are some people having similar problems i.e. https://stackoverflow.com/questions/37521162/how-solve-importerror-no-module-named-dbus
But none of the proposed solutions worked for me, including installing dbus package via Homebrew.

[rinaldus]

Try to install the program in virtualenv. Follow the instructions to install virtualenv, activate it and install PyQt5, notify2 and probably dbus inside of virtualenv.

[rinaldus]

But none of the proposed solutions worked for me, including installing dbus package via Homebrew.

Did you try to install dbus-python via pip?

[RomanZhilich]

Did you try to install dbus-python via pip?

Installation fails without clear reason and a lot of junk output. I'm trying to dig through logs..
It seems there was relevant package in Homebrew but it got removed at some point. There are some outdated instructions online that recommend installing brew install homebrew/python/python-dbus
I'll try downloading sources and installing it manually

[RomanZhilich]

I've made some progress but it still doesn't work.
To properly use notify2 on OS X you have to install dbus with Homebrew:

brew install pkg-config dbus dbus-glib  
brew services start dbus

Then:

pip3 install notify2 dbus-python

But I still have an error when trying to launch mail-notifier.py:

dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.freedesktop.Notifications': no such name

It seems that dbus service is not properly registered in the system. Other people had this problem https://github.com/fr31/spotifylyrics/issues/19#issuecomment-242543039 but no workaround as far as I can tell.

[rinaldus]

I made quick fix to prevent crashing if OS notification is different than Linux. Baloon notification won't work, but it will print notification to console output (better, than nothing) instead and it won't crash. Please, test this commit.
I will continue to work on this problem, but I'm not sure, that I succeed to resolve it and it won't be soon.

[RomanZhilich]

Please, test this commit.

It still crashes because right now notify2 initialization is the problem. You'll have to make it conditional, probably including import notify2 which I'm not sure how to do...

I will continue to work on this problem

I will also try to resolve service error and update this issue if I find a solution.

[rinaldus]

Ok, I came back to first notification method (which using notify-send), but added try: ... except: ... to prevent crashing. Please, check b04cb9a, is it workable? You should see notification in terminal output instead of baloon.

[RomanZhilich]

Yes, this is working.
Thanks.

[rinaldus]

I have one idea how to solve this problem, but I need to install OS X in Virtual Box and understand how it works there. It will take some time.

[RomanZhilich]

Thanks, I'll keep an eye out for updates.
But I think this issue should be closed. The crash was a bug, and it's fixed now that you handle OS X notifications issue gracefully.