fix obvious errors when NetworkManager is missing

eduvpn/nm.py

@@ -19,18 +19,16 @@
 from eduvpn.utils import run_in_glib_thread
 from eduvpn.variants import ApplicationVariant
 
-gi.require_version("NM", "1.0")  # noqa: E402
+from gi.repository import GLib  # type: ignore
 from gi.repository.Gio import Task  # type: ignore
 
 _logger = logging.getLogger(__name__)
 
 LINUX_NET_FOLDER = Path("/sys/class/net")
 
 try:
-    import gi
-
     gi.require_version("NM", "1.0")
-    from gi.repository import NM, GLib  # type: ignore
+    from gi.repository import NM  # type: ignore
 except (ImportError, ValueError):
     _logger.warning("Network Manager not available")
     NM = None
@@ -238,7 +236,7 @@ def iface(self) -> Optional[str]:
         return devices[0].get_iface()
 
     @property
-    def ipv4_config(self) -> Optional[NM.IPConfig]:
+    def ipv4_config(self) -> Optional["NM.IPConfig"]:
         """
         Get the ipv4 config for the active VPN connection
         """
@@ -792,7 +790,7 @@ def quit_loop(*args, **kwargs):
 
 
 def add_connection_callback(
-    client: NM.Client, result: Task, user_data: Tuple[NMManager, Optional[Callable]]
+    client: "NM.Client", result: Task, user_data: Tuple[NMManager, Optional[Callable]]
 ) -> None:
     object, callback = user_data
     new_con = client.add_connection_finish(result)

eduvpn/ui/ui.py

@@ -11,7 +11,6 @@
 import gi
 
 gi.require_version("Gtk", "3.0")  # noqa: E402
-gi.require_version("NM", "1.0")  # noqa: E402
 from datetime import datetime
 from functools import partial