Traceback (most recent call last):
  File "/tmp/qtc_device_applaunch.py", line 29, in <module>
    gi.Repository.get_default().require("UbuntuAppLaunch")
gi.RepositoryError: Typelib file for namespace 'UbuntuAppLaunch' (any version) not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 2158, in _find_spec
AttributeError: 'DynamicImporter' object has no attribute 'find_spec'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/tmp/qtc_device_applaunch.py", line 33, in <module>
    from gi.repository import UpstartAppLaunch as UAL
  File "/usr/lib/python3/dist-packages/gi/importer.py", line 53, in find_module
    'introspection typelib not found' % namespace)
ImportError: cannot import name UpstartAppLaunch, introspection typelib not found