fix(client): Ensure that the bus is connected before pairing

If pairing is attempted before the bus is connected, the pairing process fails due to an exception being raised.
hbldh · Jan 17, 2025 · 044b022 · 044b022
1 parent 2e6890f
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diff --git a/AUTHORS.rst b/AUTHORS.rst
@@ -24,6 +24,7 @@ Contributors
 * David Johansen <[email protected]>
 * JP Hutchins <[email protected]>
 * Bram Duvigneau <[email protected]>
+* Peter-Newman Messan <[email protected]>
 
 Sponsors
 --------

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -18,6 +18,7 @@ Changed
 * Don't change ctypes' global state ``bleak.backends.winrt.util``.
 * Improved performance of BlueZ backend when there are many adapters.
 * Added support for Python 3.13.
+* Fixed uninitialized bus connection when pairing before connection on BlueZ backend.
 
 `0.22.2`_ (2024-06-01)
 ======================

diff --git a/bleak/backends/bluezdbus/client.py b/bleak/backends/bluezdbus/client.py
@@ -436,6 +436,11 @@ async def pair(self, *args, **kwargs) -> bool:
             Boolean regarding success of pairing.
 
         """
+        if self._bus is None:
+            self._bus = await MessageBus(
+                bus_type=BusType.SYSTEM, negotiate_unix_fd=True
+            ).connect()
+
         # See if it is already paired.
         reply = await self._bus.call(
             Message(