More in depth tutorial

main.py

 import sys
 from PySide2.QtWidgets import QApplication, QMainWindow
-from PySide2.QtCore import QFile, QByteArray
 from PySide2.QtNetwork import QTcpSocket
 from ui_mainwindow import Ui_MainWindow
 

main2.py

+import sys
+from PySide2.QtWidgets import *
+from PySide2.QtNetwork import QTcpSocket
+
+class MainWindow(QWidget):
+    def __init__(self):
+        super(MainWindow, self).__init__()
+        
+        # Add components
+        self.layout = QVBoxLayout(self)
+        self.chat = QTextEdit(self)
+        self.chat.setReadOnly(True)
+        self.lineEdit = QLineEdit(self)
+        self.sendButton = QPushButton(self)
+        self.sendButton.setText("Send")
+
+        # Connect to sendText
+        self.lineEdit.returnPressed.connect(self.sendText)
+        self.sendButton.clicked.connect(self.sendText)
+
+        # Conect TCP
+        self.socket = QTcpSocket(self)
+        self.socket.connectToHost("localhost", 33000)
+        self.socket.readyRead.connect(self.readText)
+        
+        # Set layout
+        self.layout.addWidget(self.chat)
+        self.layout.addWidget(self.lineEdit)
+        self.layout.addWidget(self.sendButton)
+        
+        # Set window settings
+        self.setWindowTitle("kszképzés chat")
+        self.setLayout(self.layout)
+        self.resize(350, 350)
+
+    # Read text over TCP
+    def readText(self):
+        data = self.socket.readAll()
+        self.chat.append(str(data, 'utf-8'))
+
+    # Write text text over TCP
+    def sendText(self):
+        self.socket.write(self.lineEdit.text().encode('utf-8'))
+        self.lineEdit.clear()
+
+    # Send quit when the window is closed
+    def closeEvent(self, event):
+        self.socket.write("{quit}".encode('utf-8'))
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+
+    window = MainWindow()
+    window.show()
+
+    sys.exit(app.exec_())
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src/build/settings/base.json

+{
+    "app_name": "chat",
+    "author": "Bodnár Zsombor",
+    "main_module": "src/main/python/main.py",
+    "version": "1"
+}
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src/build/settings/linux.json

+{
+    "categories": "Utility;",
+    "description": "",
+    "author_email": "",
+    "url": ""
+}
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src/build/settings/mac.json

+{
+    "mac_bundle_identifier": ""
+}
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src/main/icons/README.md

+![Sample app icon](linux/128.png)
+
+This directory contains the icons that are displayed for your app. Feel free to
+change them.
+
+The difference between the icons on Mac and the other platforms is that on Mac,
+they contain a ~5% transparent margin. This is because otherwise they look too
+big (eg. in the Dock or in the app switcher).
+
+You can create Icon.ico from the .png files with
+[an online tool](http://icoconvert.com/Multi_Image_to_one_icon/).
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