Initial data commit

Task/Simple-windowed-application/Python/simple-windowed-application-3.py

@@ -0,0 +1,36 @@
+from functools import partial
+from itertools import count
+
+from PyQt5.QtWidgets import (QApplication,
+                             QLabel,
+                             QPushButton,
+                             QWidget)
+from PyQt5.QtCore import QRect
+
+LABEL_GEOMETRY = QRect(0, 15, 200, 25)
+BUTTON_GEOMETRY = QRect(50, 50, 100, 25)
+
+
+def on_click(_, label, counter=count(1)):
+    label.setText(f"Number of clicks: {next(counter)}")
+
+
+def main():
+    application = QApplication([])
+    window = QWidget()
+    label = QLabel(text="There have been no clicks yet",
+                   parent=window)
+    label.setGeometry(LABEL_GEOMETRY)
+    button = QPushButton(text="click me",
+                         parent=window)
+    button.setGeometry(BUTTON_GEOMETRY)
+    update_counter = partial(on_click,
+                             label=label)
+    button.clicked.connect(update_counter)
+    window.show()
+    application.lastWindowClosed.connect(window.close)
+    application.exec_()
+
+
+if __name__ == '__main__':
+    main()