Merge pull request #146 from realpython/python-menus-toolbars

Python-menus-toolbars-sample-app

python-menus-toolbars/MIT.txt

+The MIT License (MIT)
+
+Copyright (c) 2020 Leodanis Pozo Ramos
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

python-menus-toolbars/README.md

+# Sample PyQt Application
+
+A sample GUI application that shows how to create and use menus, toolbars, and status bars using Python and PyQt.
+
+## How to Run this Application
+
+To run this application, you need to [install `PyQt5`](https://realpython.com/python-pyqt-gui-calculator/#installing-pyqt) on your Python environment. To do that, you can run the following commands in a terminal or command prompt:
+
+```sh
+$ pip3 install PyQt5
+```
+
+Once you have [PyQt](https://www.riverbankcomputing.com/static/Docs/PyQt5/) installed, you can run the application by executing the following command:
+
+```sh
+$ python3 sample-app.py
+```
+
+This command will launch the application, so you'll be able to experiment with it.
+
+## About the Author
+
+Leodanis Pozo Ramos – [@lpozo78](https://twitter.com/lpozo78) – lpozor78@gmail.com
+
+## License
+
+- This application is distributed under the MIT license. See `LICENSE` for details.
+
+- The set of icons used in this application are part of the [TurkinOS](https://github.com/llamaret/turkinos-icon) icon theme, which is distributed under the [GPL v3.0 license](https://github.com/llamaret/turkinos-icon/blob/master/LICENSE). See `resources/LICENSE` for details.
\ No newline at end of file

python-menus-toolbars/resources.qrc

+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file alias="file-new.svg">resources/file-new.svg</file>
+    <file alias="file-open.svg">resources/file-open.svg</file>
+    <file alias="file-save.svg">resources/file-save.svg</file>
+    <file alias="file-exit.svg">resources/file-exit.svg</file>
+    <file alias="edit-copy.svg">resources/edit-copy.svg</file>
+    <file alias="edit-cut.svg">resources/edit-cut.svg</file>
+    <file alias="edit-paste.svg">resources/edit-paste.svg</file>
+    <file alias="help-content.svg">resources/help-content.svg</file>
+</qresource>
+</RCC>

python-menus-toolbars/resources/edit-copy.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m14.999993 6.0000017h-10.999988c-.5520048 0-1.000005.4480002-1.000005.9999916v11.0000017c0 .552005.4480002 1.000005 1.000005 1.000005h10.999988c.552005 0 1.000005-.448 1.000005-1.000005v-11.0000017c0-.5519914-.448-.9999916-1.000005-.9999916zm3.000002-3.0000017h-9.9999967c-.5520048 0-1.000005.4480002-1.000005 1.000005v.9999916h1.000005v-.5000025c0-.2759957.2240068-.4999891.5000025-.4999891h8.9999912c.27601 0 .500003.2239934.500003.4999891v9.0000049c0 .275996-.223993.500003-.500003.500003h-.499989v.999991h.999992c.552005 0 1.000005-.448 1.000005-.999991v-9.999997c0-.5520048-.448-1.000005-1.000005-1.000005z"
+      class="ColorScheme-Text" />
+</svg> 

python-menus-toolbars/resources/edit-cut.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m7.0136719 2-.4355469.7753906c-.2699231.4812667-.5038694.7087891-.6289062 1.1367188-.0625185.2139647-.0612584.4699226.0019531.7011718.0632171.2312494.1726285.4527981.3261719.7265626l3.3945312 6.0625002-1.7148438 3.023437c-.4483616-.277461-.8911737-.591797-1.4550781-.591797-1.6582865 0-3.0019531 1.388975-3.0019531 3.083985 0 1.695008 1.3436663 3.082031 3.0019531 3.082031 1.658287 0 3.0019532-1.387023 3.0019531-3.082031 0-.133955-.0209824-.259363-.0371093-.386719.4622484-1.003569.8985411-1.788627 1.8085941-2.248047.003037-.003375.002934-.004437.005859-.007812l1.253906 2.238281c-.017223.134034-.039062.265801-.039062.404297 0 1.695008 1.343665 3.082031 3.001953 3.082031 1.658287 0 3.001953-1.387023 3.001953-3.082031 0-1.69501-1.343667-3.083985-3.001953-3.083985-.56176 0-1.004412.308543-1.451172.583985l-1.708984-3.015625 3.398437-6.0625002v-.0019532c.152934-.2728193.261159-.4939397.324219-.7246094.063214-.2312492.066332-.4872071.003906-.7011718-.125138-.4278882-.358984-.6554521-.628906-1.1367188l-.435547-.7753906-3.994141 7.0488281zm-.5117188 13.884766c.5564078 0 .9960938.448401.9960938 1.033203s-.439686 1.03125-.9960938 1.03125-.9941406-.446448-.9941406-1.03125c0-.584803.4377328-1.033203.9941406-1.033203zm8.9960939 0c .556407 0 .99414.448401.994141 1.033203 0 .584802-.437734 1.03125-.994141 1.03125-.556409 0-.996094-.446448-.996094-1.03125 0-.584803.439685-1.033203.996094-1.033203z"
+      class="ColorScheme-Text" />
+</svg> 

python-menus-toolbars/resources/edit-paste.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m14.12662 8.00521h-.9452v-2.22935c0-.23294-.18815-.4217-.42014-.4217h-.45273l-.90589-3.0529c-.053-.17871-.21679-.30126-.40266-.30126-.18578 0-.34963.12255-.40266.30126l-.90589 3.0529h-.45273c-.23199 0-.42014.18876-.42014.4217v2.22942h-.9452c-1.03295 0-1.87338.84348-1.87338 1.88035v8.23403c0 1.03686.84035 1.88034 1.87338 1.88034h6.25324c1.03295 0 1.87338-.84348 1.87338-1.88034v-8.23403c0-1.03696-.84035-1.88042-1.87338-1.88042z"
+      class="ColorScheme-Text" />
+</svg> 

python-menus-toolbars/resources/file-exit.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m17.927299 6.98434c-.715348-1.22562-1.685765-2.19604-2.911381-2.91138-1.225871-.71535-2.564127-1.07296-4.015662-1.07296-1.4514075 0-2.7900468.35761-4.0156625 1.07296-1.2257436.71522-2.1961612 1.68563-2.9115085 2.91138-.7154752 1.22574-1.073085 2.56438-1.073085 4.01566 0 1.45141.3577376 2.78979 1.0729571 4.01566.7153474 1.22549 1.685765 2.19604 2.9115085 2.91138 1.2257436.71535 2.5642551 1.07296 4.0156624 1.07296 1.451407 0 2.790046-.35761 4.015662-1.07296 1.225616-.71522 2.196033-1.68576 2.911381-2.91138.715219-1.22574 1.072829-2.56438 1.072829-4.01566 0-1.45141-.35761-2.79005-1.072701-4.01566zm-3.156351 5.90101c.131946.13181.198047.28831.198047.46884 0 .18743-.0661.34725-.198047.47907l-.937431.93756c-.131946.13195-.291637.19792-.4792.19792-.18053 0-.337025-.066-.468715-.19792l-1.885474-1.88547-1.8854742 1.88547c-.1319462.13195-.2881847.19792-.4687156.19792-.1875629 0-.3472535-.066-.4791996-.19792l-.9375589-.93756c-.1319462-.13182-.1979192-.29164-.1979192-.47907 0-.18053.065973-.33703.1979192-.46884l1.8854741-1.88535-1.8854741-1.88547c-.1319462-.13182-.1979192-.28819-.1979192-.46872 0-.18756.065973-.34725.1979192-.4792l.9375589-.93743c.1319461-.13195.2916367-.19792.4791996-.19792.1805309 0 .3367694.066.4687156.19792l1.8854742 1.88535 1.885474-1.88535c.13169-.13195.288185-.19792.468715-.19792.187563 0 .347254.066.4792.19792l.937431.93743c.131946.13195.198047.29164.198047.4792 0 .18053-.0661.3369-.198047.46872l-1.885346 1.88547z"
+      class="ColorScheme-Text" />
+</svg> 

python-menus-toolbars/resources/file-new.svg

+    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m9.666667 3c-.246249 0-.444445.1981956-.444445.4444444v5.7777776h-5.7777776c-.2462222 0-.4444444.198222-.4444444.444445v2.666666c0 .246223.1982222.444445.4444444.444445h5.7777776v5.777778c0 .246248.198196.444444.444445.444444h2.666666c.246249 0 .444445-.198196.444445-.444444v-5.777778h5.777778c.246222 0 .444444-.198222.444444-.444445v-2.666666c0-.246223-.198222-.444445-.444444-.444445h-5.777778v-5.7777776c0-.2462488-.198196-.4444444-.444445-.4444444z"
+      class="ColorScheme-Text" />
+</svg> 

python-menus-toolbars/resources/file-open.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m2.5000001 1034.3622c-.277 0-.5.223-.5.5v1.9609 1.0391 10.0391c0 .2557.2052456.4609.4609375.4609h17.0781244c.255692 0 .460938-.2052.460938-.4609v-11.0782c0-.2557-.205246-.4609-.460938-.4609h-8.181159c-.569865.017-.846295-.1321-1.097628-.3681l-1.1884019-1.21c-.16805-.2202-.294873-.4219-.571873-.4219z"
+      class="ColorScheme-Text" 
+      transform="matrix(.88888889 0 0 .88888889 1.222222 -914.87751)"/>
+</svg> 

python-menus-toolbars/resources/file-save.svg

+<svg viewBox="0 0 22 22" xmlns="http://www.w3.org/2000/svg">
+<defs id="defs">
+    <style type="text/css" id="current-color-scheme">
+        .ColorScheme-Text { color: #4d4d4d; }
+    </style>
+</defs>
+<path style="fill:currentColor;fill-opacity;stroke:none" class="ColorScheme-Text" d="m3.6679688 3c-.3691339 0-.6679688.2988749-.6679688.6679688v14.6640622c0 .369134.2988349.667969.6679688.667969h14.6640622c.369134 0 .667969-.298835.667969-.667969v-11.5585935c0-.1772133-.069939-.3473157-.195312-.4726563l-3.105469-3.1054687c-.12534-.1253333-.295351-.1953125-.472657-.1953125zm1.9707031 1.5273438h9.1777341v4.9003906h-9.1777341zm5.5703121.4726562c-.115073 0-.208984.1073944-.208984.2402344v3.5195312c0 .13288.093911.2402344.208984.2402344h1.582032c.115073 0 .208984-.1073544.208984-.2402344v-3.5195312c0-.13284-.093911-.2402344-.208984-.2402344z" transform="matrix(1.000000005 0 0 1.000000005 .000001275238 .00000172266)"/></svg>

python-menus-toolbars/resources/help-content.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+ <defs id="defs3051">
+   <style type="text/css" id="current-color-scheme">
+     .ColorScheme-Text {
+       color:#4d4d4d;
+     }
+     </style>
+ </defs>
+   <path
+      style="fill:currentColor;fill-opacity:1;stroke:none"
+      d="m10.999999 3.000002a8 8 0 0 0 -8 8 8 8 0 0 0 8 8 8 8 0 0 0 8-8 8 8 0 0 0 -8-8zm-.199219 3.5a1 1 0 0 1 1 1 1 1 0 0 1 -1 1 1 1 0 0 1 -.9999998-1 1 1 0 0 1  .9999998-1zm-.107422 3h .212891c.356143 0 .644531.2864351.644531.642578v4.714844c0 .356143-.288388.642578-.644531.642578h-.212891c-.356143 0-.642578-.286435-.642578-.642578v-4.714844c0-.3561429.286435-.642578.642578-.642578z"
+      class="ColorScheme-Text" />
+</svg> 

python-menus-toolbars/sample-app.py

+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Sample PyQt application."""
+
+import sys
+from functools import partial
+
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QIcon, QKeySequence
+from PyQt5.QtWidgets import (
+    QAction,
+    QApplication,
+    QLabel,
+    QMainWindow,
+    QMenu,
+    QSpinBox,
+    QToolBar,
+)
+
+# NOTE: Uncomment this import to enable icons
+# import qrc_resources
+
+
+class Window(QMainWindow):
+    """Main Window."""
+
+    def __init__(self, parent=None):
+        """Initializer."""
+        super().__init__(parent)
+        self.setWindowTitle("Python Menus & Toolbars")
+        self.resize(400, 200)
+        self.centralWidget = QLabel("Hello, World")
+        self.centralWidget.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
+        self.setCentralWidget(self.centralWidget)
+        self._createActions()
+        self._createMenuBar()
+        self._createToolBars()
+
+        # Uncomment the call to ._createContextMenu() below to create a context
+        # menu using menu policies. To test this out, you also need to
+        # comment .contextMenuEvent() and uncomment ._createContextMenu()
+
+        # self._createContextMenu()
+
+        self._connectActions()
+        self._createStatusBar()
+
+    def _createMenuBar(self):
+        menuBar = self.menuBar()
+        # File menu
+        fileMenu = QMenu("&File", self)
+        menuBar.addMenu(fileMenu)
+        fileMenu.addAction(self.newAction)
+        fileMenu.addAction(self.openAction)
+        # Open Recent submenu
+        self.openRecentMenu = fileMenu.addMenu("Open Recent")
+        fileMenu.addAction(self.saveAction)
+        # Separator
+        fileMenu.addSeparator()
+        fileMenu.addAction(self.exitAction)
+        # Edit menu
+        editMenu = menuBar.addMenu("&Edit")
+        editMenu.addAction(self.copyAction)
+        editMenu.addAction(self.pasteAction)
+        editMenu.addAction(self.cutAction)
+        # Separator
+        editMenu.addSeparator()
+        # Find and Replace submenu
+        findMenu = editMenu.addMenu("Find and Replace")
+        findMenu.addAction("Find...")
+        findMenu.addAction("Replace...")
+        # Help menu
+        helpMenu = menuBar.addMenu(QIcon(":help-content.svg"), "&Help")
+        helpMenu.addAction(self.helpContentAction)
+        helpMenu.addAction(self.aboutAction)
+
+    def _createToolBars(self):
+        # File toolbar
+        fileToolBar = self.addToolBar("File")
+        fileToolBar.setMovable(False)
+        fileToolBar.addAction(self.newAction)
+        fileToolBar.addAction(self.openAction)
+        fileToolBar.addAction(self.saveAction)
+        # Edit toolbar
+        editToolBar = QToolBar("Edit", self)
+        self.addToolBar(editToolBar)
+        editToolBar.addAction(self.copyAction)
+        editToolBar.addAction(self.pasteAction)
+        editToolBar.addAction(self.cutAction)
+        # Widgets
+        self.fontSizeSpinBox = QSpinBox()
+        self.fontSizeSpinBox.setFocusPolicy(Qt.NoFocus)
+        editToolBar.addWidget(self.fontSizeSpinBox)
+
+    def _createStatusBar(self):
+        self.statusbar = self.statusBar()
+        # Temporary message
+        self.statusbar.showMessage("Ready", 3000)
+        # Permanent widget
+        self.wcLabel = QLabel(f"{self.getWordCount()} Words")
+        self.statusbar.addPermanentWidget(self.wcLabel)
+
+    def _createActions(self):
+        # File actions
+        self.newAction = QAction(self)
+        self.newAction.setText("&New")
+        self.newAction.setIcon(QIcon(":file-new.svg"))
+        self.openAction = QAction(QIcon(":file-open.svg"), "&Open...", self)
+        self.saveAction = QAction(QIcon(":file-save.svg"), "&Save", self)
+        self.exitAction = QAction("&Exit", self)
+        # String-based key sequences
+        self.newAction.setShortcut("Ctrl+N")
+        self.openAction.setShortcut("Ctrl+O")
+        self.saveAction.setShortcut("Ctrl+S")
+        # Help tips
+        newTip = "Create a new file"
+        self.newAction.setStatusTip(newTip)
+        self.newAction.setToolTip(newTip)
+        self.newAction.setWhatsThis("Create a new and empty text file")
+        # Edit actions
+        self.copyAction = QAction(QIcon(":edit-copy.svg"), "&Copy", self)
+        self.pasteAction = QAction(QIcon(":edit-paste.svg"), "&Paste", self)
+        self.cutAction = QAction(QIcon(":edit-cut.svg"), "C&ut", self)
+        # Standard key sequence
+        self.copyAction.setShortcut(QKeySequence.Copy)
+        self.pasteAction.setShortcut(QKeySequence.Paste)
+        self.cutAction.setShortcut(QKeySequence.Cut)
+        # Help actions
+        self.helpContentAction = QAction("&Help Content...", self)
+        self.aboutAction = QAction("&About...", self)
+
+    # Uncomment this method to create a context menu using menu policies
+    # def _createContextMenu(self):
+    #     # Setting contextMenuPolicy
+    #     self.centralWidget.setContextMenuPolicy(Qt.ActionsContextMenu)
+    #     # Populating the widget with actions
+    #     self.centralWidget.addAction(self.newAction)
+    #     self.centralWidget.addAction(self.openAction)
+    #     self.centralWidget.addAction(self.saveAction)
+    #     self.centralWidget.addAction(self.copyAction)
+    #     self.centralWidget.addAction(self.pasteAction)
+    #     self.centralWidget.addAction(self.cutAction)
+
+    def contextMenuEvent(self, event):
+        # Context menu
+        menu = QMenu(self.centralWidget)
+        # Populating the menu with actions
+        menu.addAction(self.newAction)
+        menu.addAction(self.openAction)
+        menu.addAction(self.saveAction)
+        # Separator
+        separator = QAction(self)
+        separator.setSeparator(True)
+        menu.addAction(separator)
+        menu.addAction(self.copyAction)
+        menu.addAction(self.pasteAction)
+        menu.addAction(self.cutAction)
+        # Launching the menu
+        menu.exec(event.globalPos())
+
+    def _connectActions(self):
+        # Connect File actions
+        self.newAction.triggered.connect(self.newFile)
+        self.openAction.triggered.connect(self.openFile)
+        self.saveAction.triggered.connect(self.saveFile)
+        self.exitAction.triggered.connect(self.close)
+        # Connect Edit actions
+        self.copyAction.triggered.connect(self.copyContent)
+        self.pasteAction.triggered.connect(self.pasteContent)
+        self.cutAction.triggered.connect(self.cutContent)
+        # Connect Help actions
+        self.helpContentAction.triggered.connect(self.helpContent)
+        self.aboutAction.triggered.connect(self.about)
+        # Connect Open Recent to dynamically populate it
+        self.openRecentMenu.aboutToShow.connect(self.populateOpenRecent)
+
+    # Slots
+    def newFile(self):
+        # Logic for creating a new file goes here...
+        self.centralWidget.setText("<b>File > New</b> clicked")
+
+    def openFile(self):
+        # Logic for opening an existing file goes here...
+        self.centralWidget.setText("<b>File > Open...</b> clicked")
+
+    def saveFile(self):
+        # Logic for saving a file goes here...
+        self.centralWidget.setText("<b>File > Save</b> clicked")
+
+    def copyContent(self):
+        # Logic for copying content goes here...
+        self.centralWidget.setText("<b>Edit > Copy</b> clicked")
+
+    def pasteContent(self):
+        # Logic for pasting content goes here...
+        self.centralWidget.setText("<b>Edit > Pate</b> clicked")
+
+    def cutContent(self):
+        # Logic for cutting content goes here...
+        self.centralWidget.setText("<b>Edit > Cut</b> clicked")
+
+    def helpContent(self):
+        # Logic for launching help goes here...
+        self.centralWidget.setText("<b>Help > Help Content...</b> clicked")
+
+    def about(self):
+        # Logic for showing an about dialog content goes here...
+        self.centralWidget.setText("<b>Help > About...</b> clicked")
+
+    def populateOpenRecent(self):
+        # Step 1. Remove the old options from the menu
+        self.openRecentMenu.clear()
+        # Step 2. Dynamically create the actions
+        actions = []
+        filenames = [f"File-{n}" for n in range(5)]
+        for filename in filenames:
+            action = QAction(filename, self)
+            action.triggered.connect(partial(self.openRecentFile, filename))
+            actions.append(action)
+        # Step 3. Add the actions to the menu
+        self.openRecentMenu.addActions(actions)
+
+    def openRecentFile(self, filename):
+        # Logic for opening a recent file goes here...
+        self.centralWidget.setText(f"<b>{filename}</b> opened")
+
+    def getWordCount(self):
+        # Logic for computing the word count goes here...
+        return 42
+
+
+if __name__ == "__main__":
+    # Create the application
+    app = QApplication(sys.argv)
+    # Create and show the main window
+    win = Window()
+    win.show()
+    # Run the event loop
+    sys.exit(app.exec_())