shujaatak · June 5, 2021 11:24 · Jun 5, 2021
diff --git a/PyQT5_3Ways_Of_Dealing_With_Threads.py b/PyQT5_3Ways_Of_Dealing_With_Threads.py
@@ -0,0 +1,76 @@
+import sys
+import time
+
+from PyQt5.QtCore import (QCoreApplication, QObject, QRunnable, QThread,
+                          QThreadPool, pyqtSignal)
+
+
+# Subclassing QThread
+# http://qt-project.org/doc/latest/qthread.html
+class AThread(QThread):
+
+    def run(self):
+        count = 0
+        while count < 5:
+            time.sleep(1)
+            print("A Increasing")
+            count += 1
+
+# Subclassing QObject and using moveToThread
+# http://blog.qt.digia.com/blog/2007/07/05/qthreads-no-longer-abstract
+class SomeObject(QObject):
+
+    finished = pyqtSignal()
+
+    def long_running(self):
+        count = 0
+        while count < 5:
+            time.sleep(1)
+            print("B Increasing")
+            count += 1
+        self.finished.emit()
+
+# Using a QRunnable
+# http://qt-project.org/doc/latest/qthreadpool.html
+# Note that a QRunnable isn't a subclass of QObject and therefore does
+# not provide signals and slots.
+class Runnable(QRunnable):
+
+    def run(self):
+        count = 0
+        app = QCoreApplication.instance()
+        while count < 5:
+            print("C Increasing")
+            time.sleep(1)
+            count += 1
+        app.quit()
+
+
+def using_q_thread():
+    app = QCoreApplication([])
+    thread = AThread()
+    thread.finished.connect(app.exit)
+    thread.start()
+    sys.exit(app.exec_())
+
+def using_move_to_thread():
+    app = QCoreApplication([])
+    objThread = QThread()
+    obj = SomeObject()
+    obj.moveToThread(objThread)
+    obj.finished.connect(objThread.quit)
+    objThread.started.connect(obj.long_running)
+    objThread.finished.connect(app.exit)
+    objThread.start()
+    sys.exit(app.exec_())
+
+def using_q_runnable():
+    app = QCoreApplication([])
+    runnable = Runnable()
+    QThreadPool.globalInstance().start(runnable)
+    sys.exit(app.exec_())
+
+if __name__ == "__main__":
+    #using_q_thread()
+    #using_move_to_thread()
+    using_q_runnable()