Description of problem:
gnome-passwordsafe crashes upon launching because of a namespace error in Python.

Version-Release number of selected component:
gnome-passwordsafe-3.99.1-2.fc31

Additional info:
reporter:       libreport-2.11.3
cgroup:         0::/user.slice/user-1000.slice/session-2.scope
cmdline:        /usr/bin/python3 /usr/bin/gnome-passwordsafe
crash_function: require_version
exception_type: ValueError
executable:     /usr/bin/gnome-passwordsafe
interpreter:    python3-3.7.6-1.fc31.x86_64
kernel:         5.4.13-201.fc31.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
__init__.py:129:require_version:ValueError: Namespace Handy not available

Traceback (most recent call last):
  File "/usr/bin/gnome-passwordsafe", line 17, in <module>
    from passwordsafe.application import Application
  File "/usr/lib/python3.7/site-packages/passwordsafe/application.py", line 5, in <module>
    gi.require_version('Handy', '0.0')
  File "/usr/lib64/python3.7/site-packages/gi/__init__.py", line 129, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Handy not available

Local variables in innermost frame:
namespace: 'Handy'
version: '0.0'
repository: <gi.Repository object at 0x7f6f7d871c30>
available_versions: []