[Python] Make Commissioning APIs more pythonic an consistent

This commit makes the commissioning APIs more pythonic and consistent
by not returning PyChipError but simply raising ChipStackError
exceptions instead.

src/controller/python/chip/ChipDeviceCtrl.py

@@ -360,7 +360,10 @@ def HandleCommissioningComplete(nodeId: int, err: PyChipError):
                 logging.exception("HandleCommissioningComplete called unexpectedly")
                 return
 
-            self._commissioning_complete_future.set_result(err)
+            if err.is_success:
+                self._commissioning_complete_future.set_result(None)
+            else:
+                self._commissioning_complete_future.set_exception(err.to_exception())
 
         def HandleFabricCheck(nodeId):
             self.fabricCheckNodeId = nodeId
@@ -533,7 +536,7 @@ def IsConnected(self):
                 self.devCtrl)
         )
 
-    def ConnectBLE(self, discriminator, setupPinCode, nodeid) -> PyChipError:
+    def ConnectBLE(self, discriminator, setupPinCode, nodeid) -> None:
         self.CheckIsActive()
 
         self._commissioning_complete_future = concurrent.futures.Future()
@@ -545,11 +548,7 @@ def ConnectBLE(self, discriminator, setupPinCode, nodeid) -> PyChipError:
                     self.devCtrl, discriminator, setupPinCode, nodeid)
             ).raise_on_error()
 
-            # TODO: Change return None. Only returning on success is not useful.
-            # but that is what the previous implementation did.
-            res = self._commissioning_complete_future.result()
-            res.raise_on_error()
-            return res
+            return self._commissioning_complete_future.result()
         finally:
             self._commissioning_complete_future = None
 
@@ -1856,17 +1855,16 @@ def caIndex(self) -> int:
     def fabricAdmin(self) -> FabricAdmin:
         return self._fabricAdmin
 
-    def Commission(self, nodeid) -> PyChipError:
+    def Commission(self, nodeid) -> None:
         '''
         Start the auto-commissioning process on a node after establishing a PASE connection.
         This function is intended to be used in conjunction with `EstablishPASESessionBLE` or
         `EstablishPASESessionIP`. It can be called either before or after the DevicePairingDelegate
         receives the OnPairingComplete call. Commissioners that want to perform simple
-        auto-commissioning should use the supplied "PairDevice" functions above, which will
+        auto-commissioning should use the supplied "CommissionWithCode" function, which will
         establish the PASE connection and commission automatically.
 
-        Return:
-          bool: True if successful, False otherwise.
+        Raises a ChipStackError on failure.
         '''
         self.CheckIsActive()
 
@@ -1991,7 +1989,7 @@ def GetFabricCheckResult(self) -> int:
         return self.fabricCheckNodeId
 
     def CommissionOnNetwork(self, nodeId: int, setupPinCode: int,
-                            filterType: DiscoveryFilterType = DiscoveryFilterType.NONE, filter: typing.Any = None, discoveryTimeoutMsec: int = 30000) -> PyChipError:
+                            filterType: DiscoveryFilterType = DiscoveryFilterType.NONE, filter: typing.Any = None, discoveryTimeoutMsec: int = 30000) -> None:
         '''
         Does the routine for OnNetworkCommissioning, with a filter for mDNS discovery.
         Supported filters are:
@@ -2007,6 +2005,8 @@ def CommissionOnNetwork(self, nodeId: int, setupPinCode: int,
             DiscoveryFilterType.COMPRESSED_FABRIC_ID
 
         The filter can be an integer, a string or None depending on the actual type of selected filter.
+
+        Raises a ChipStackError on failure.
         '''
         self.CheckIsActive()
 
@@ -2026,9 +2026,11 @@ def CommissionOnNetwork(self, nodeId: int, setupPinCode: int,
         finally:
             self._commissioning_complete_future = None
 
-    def CommissionWithCode(self, setupPayload: str, nodeid: int, discoveryType: DiscoveryType = DiscoveryType.DISCOVERY_ALL) -> PyChipError:
+    def CommissionWithCode(self, setupPayload: str, nodeid: int, discoveryType: DiscoveryType = DiscoveryType.DISCOVERY_ALL) -> None:
         ''' Commission with the given nodeid from the setupPayload.
             setupPayload may be a QR or manual code.
+
+            Raises a ChipStackError on failure.
         '''
         self.CheckIsActive()
 
@@ -2047,8 +2049,11 @@ def CommissionWithCode(self, setupPayload: str, nodeid: int, discoveryType: Disc
         finally:
             self._commissioning_complete_future = None
 
-    def CommissionIP(self, ipaddr: str, setupPinCode: int, nodeid: int) -> PyChipError:
-        """ DEPRECATED, DO NOT USE! Use `CommissionOnNetwork` or `CommissionWithCode` """
+    def CommissionIP(self, ipaddr: str, setupPinCode: int, nodeid: int) -> None:
+        """ DEPRECATED, DO NOT USE! Use `CommissionOnNetwork` or `CommissionWithCode`
+
+        Raises a ChipStackError on failure.
+        """
         self.CheckIsActive()
 
         self._commissioning_complete_future = concurrent.futures.Future()