Use start and end session nomenclature

Helps when we also inherit from QObject, which already has connect and
disconnect methods.

pytec/aioexample.py

@@ -3,7 +3,7 @@ from pytec.aioclient import Client
 
 async def main():
     tec = Client()
-    await tec.connect() #(host="192.168.1.26", port=23)
+    await tec.start_session() #(host="192.168.1.26", port=23)
     await tec.set_param("s-h", 1, "t0", 20)
     print(await tec.get_pwm())
     print(await tec.get_pid())

pytec/pytec/aioclient.py

@@ -17,15 +17,15 @@ class Client:
         self._report_mode_on = False
         self.timeout = None
 
-    async def connect(self, host='192.168.1.26', port=23, timeout=None):
-        """Connect to the Thermostat with host and port.
+    async def start_session(self, host='192.168.1.26', port=23, timeout=None):
+        """Start session to Thermostat at specified host and port.
         Throws StoppedConnecting if disconnect was called while connecting.
         Throws asyncio.TimeoutError if timeout was exceeded.
 
         Example::
             client = Client()
             try:
-                await client.connect()
+                await client.start_session()
             except StoppedConnecting:
                 print("Stopped connecting")
         """
@@ -50,8 +50,8 @@ class Client:
         """Returns True if client is connected"""
         return self._writer is not None
 
-    async def disconnect(self):
-        """Disconnect the client if connected, cancel connection if connecting"""
+    async def end_session(self):
+        """End session to Thermostat if connected, cancel connection if connecting"""
         if self._connecting_task is not None:
             self._connecting_task.cancel()
 
@@ -249,7 +249,7 @@ class Client:
             self._writer.write("reset\n".encode('utf-8'))
             await self._writer.drain()
 
-        await self.disconnect()
+        await self.end_session()
 
     async def dfu(self):
         """Put the Thermostat in DFU update mode
@@ -262,7 +262,7 @@ class Client:
             self._writer.write("dfu\n".encode('utf-8'))
             await self._writer.drain()
 
-        await self.disconnect()
+        await self.end_session()
 
     async def ipv4(self):
         """Get the IPv4 settings of the Thermostat"""

pytec/tec_qt.py

@@ -570,7 +570,7 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
                 self.port_set_spin.setEnabled(False)
 
                 try:
-                    await self.client.connect(host=host, port=port, timeout=30)
+                    await self.client.start_session(host=host, port=port, timeout=30)
                 except StoppedConnecting:
                     return
                 await self._on_connection_changed(True)
@@ -581,9 +581,10 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
             logging.error(f"Failed communicating to {host}:{port}: {e}")
             await self.bail()
 
+    @asyncSlot()
     async def bail(self):
         await self._on_connection_changed(False)
-        await self.client.disconnect()
+        await self.client.end_session()
 
     @pyqtSlot(list)
     def plot(self, report):