TypeError: get() got an unexpected keyword argument 'raw'

Well, I have a Fedora 25 computer. The installation from source was successful but when I attempt to install Kazam on it I encountered the following error:

```
/usr/bin/kazam:32: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
Traceback (most recent call last):
  File "/usr/bin/kazam", line 146, in <module>
    from kazam.app import KazamApp
  File "/usr/lib/python3.5/site-packages/kazam/app.py", line 35, in <module>
    from kazam.backend.prefs import *
  File "/usr/lib/python3.5/site-packages/kazam/backend/prefs.py", line 478, in <module>
    prefs = Prefs()
  File "/usr/lib/python3.5/site-packages/kazam/backend/prefs.py", line 121, in __init__
    self.read_config()
  File "/usr/lib/python3.5/site-packages/kazam/backend/prefs.py", line 199, in read_config
    self.audio_source = int(self.config.get("main", "audio_source"))
  File "/usr/lib/python3.5/site-packages/kazam/backend/config.py", line 103, in get
    return ConfigParser.get(self, section, key)
  File "/usr/lib64/python3.5/configparser.py", line 797, in get
    d)
  File "/usr/lib64/python3.5/configparser.py", line 393, in before_get
    self._interpolate_some(parser, option, L, value, section, defaults, 1)
  File "/usr/lib64/python3.5/configparser.py", line 406, in _interpolate_some
    rawval = parser.get(section, option, raw=True, fallback=rest)
TypeError: get() got an unexpected keyword argument 'raw'

```

So what could be the problem? Seems that the source code was broken?