Connect close button, small fix in server.py

main.py

@@ -10,10 +10,11 @@ class MainWindow(QMainWindow):
         self.ui = Ui_MainWindow()
         self.ui.setupUi(self)
 
-        self.socket = QTcpSocket()
+        self.socket = QTcpSocket(self)
         self.socket.connectToHost("localhost", 33000)
         self.socket.readyRead.connect(self.readText)
         self.ui.lineEdit.returnPressed.connect(self.sendText)
+        self.ui.sendButton.clicked.connect(self.sendText)
 
     def readText(self):
         data = self.socket.readAll()
@@ -21,6 +22,10 @@ class MainWindow(QMainWindow):
 
     def sendText(self):
         self.socket.write(self.ui.lineEdit.text().encode('utf-8'))
+        self.ui.lineEdit.clear()
+
+    def closeEvent(self, event):
+        self.socket.write("{quit}".encode('utf-8'))
 
 if __name__ == "__main__":
     app = QApplication(sys.argv)

mainwindow.ui

@@ -23,7 +23,7 @@
      </widget>
     </item>
     <item>
-     <widget class="Line" name="line_2">
+     <widget class="Line" name="line">
       <property name="orientation">
        <enum>Qt::Horizontal</enum>
       </property>
@@ -33,7 +33,7 @@
      <widget class="QLineEdit" name="lineEdit"/>
     </item>
     <item>
-     <widget class="QPushButton" name="pushButton">
+     <widget class="QPushButton" name="sendButton">
       <property name="text">
        <string>Send</string>
       </property>

server.py

@@ -18,6 +18,10 @@ def handle_client(client):  # Takes client socket as argument.
     """Handles a single client connection."""
 
     name = client.recv(BUFSIZ).decode("utf8")
+    if(name == "{quit}"):
+        client.close()
+        return
+
     welcome = 'Welcome %s! If you ever want to quit, type {quit} to exit.' % name
     client.send(bytes(welcome, "utf8"))
     msg = "%s has joined the chat!" % name

ui_mainwindow.py

@@ -3,7 +3,7 @@
 # Form implementation generated from reading ui file 'mainwindow.ui',
 # licensing of 'mainwindow.ui' applies.
 #
-# Created: Mon Mar 25 19:25:45 2019
+# Created: Mon Mar 25 20:14:33 2019
 #      by: pyside2-uic  running on PySide2 5.12.2
 #
 # WARNING! All changes made in this file will be lost!
@@ -22,17 +22,17 @@ class Ui_MainWindow(object):
         self.chat.setReadOnly(True)
         self.chat.setObjectName("chat")
         self.verticalLayout.addWidget(self.chat)
-        self.line_2 = QtWidgets.QFrame(self.centralwidget)
-        self.line_2.setFrameShape(QtWidgets.QFrame.HLine)
-        self.line_2.setFrameShadow(QtWidgets.QFrame.Sunken)
-        self.line_2.setObjectName("line_2")
-        self.verticalLayout.addWidget(self.line_2)
+        self.line = QtWidgets.QFrame(self.centralwidget)
+        self.line.setFrameShape(QtWidgets.QFrame.HLine)
+        self.line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        self.line.setObjectName("line")
+        self.verticalLayout.addWidget(self.line)
         self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
         self.lineEdit.setObjectName("lineEdit")
         self.verticalLayout.addWidget(self.lineEdit)
-        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
-        self.pushButton.setObjectName("pushButton")
-        self.verticalLayout.addWidget(self.pushButton)
+        self.sendButton = QtWidgets.QPushButton(self.centralwidget)
+        self.sendButton.setObjectName("sendButton")
+        self.verticalLayout.addWidget(self.sendButton)
         MainWindow.setCentralWidget(self.centralwidget)
         self.menubar = QtWidgets.QMenuBar(MainWindow)
         self.menubar.setGeometry(QtCore.QRect(0, 0, 413, 21))
@@ -47,5 +47,5 @@ class Ui_MainWindow(object):
 
     def retranslateUi(self, MainWindow):
         MainWindow.setWindowTitle(QtWidgets.QApplication.translate("MainWindow", "MainWindow", None, -1))
-        self.pushButton.setText(QtWidgets.QApplication.translate("MainWindow", "Send", None, -1))
+        self.sendButton.setText(QtWidgets.QApplication.translate("MainWindow", "Send", None, -1))