add ubuscribble to Session-3

.gitignore

+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+.static_storage/
+.media/
+local_settings.py
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+

Session-3/readme-lib.md

+# Make Scribble Module with PyQt5
+1. install cookiecutter
+```sh
+pip install --user cookiecutter
+```
+
+2. create project using cookiecutter
+```sh
+cookiecutter https://github.com/globality-corp/cookiecutter-python-library.git
+```
+
+3. enter the following information
+```txt
+author [Globality Engineering]: Benjama EEP
+author_email [engineering@globality.com]: benjama.eep@benjama.edu
+organization_name [globality-corp]: benjama.eep
+repo_name [repo_name]: ubuscribble
+project_name [project_name]: ubuscribble
+project_version [0.1.0]: <enter>
+short_description [Short Project Description]: scribble widget for pyqt5
+```
+
+4. build and install
+```sh
+cd ubuscribble/
+python3 setup.py install --user
+```
+
+5. run
+```sh
+BenApp
+```
+

Session-3/readme.md

+# Desktop Application Development with PyQt5
+1. install cookiecutter
+```sh
+pip install --user cookiecutter
+```
+
+2. create project using cookiecutter
+```sh
+cookiecutter https://github.com/mandeep/cookiecutter-pyqt5.git
+```
+
+3. enter the following information
+```txt
+full_name [Mandeep]: Benjama EEP
+email [info@mandeep.xyz]: benjama.eep@benjama.edu
+github_username [mandeep]: benjama.eep
+repo_name [cookiecutter-pyqt5]: ubuworkshop
+package_name [cookiecutter-pyqt5]: workshopapp
+application_name [application]: workshopapp
+application_title [Template]: BenApp 
+project_short_description [A PyQt5 GUI application]: Desktop Application
+version [0.0.1]: <enter>
+insert_toolbar [yes]: <enter>
+insert_statusbar [yes]: <enter>
+```
+
+4. build and install
+```sh
+cd workshopapp/
+python3 setup.py install --user
+```
+
+5. run
+```sh
+BenApp
+```
+

Session-3/scribbletestapp.py

+#!/usr/bin/python3 
+
+from PyQt5.QtWidgets import QAction, QMenu, QMainWindow, QApplication, QMessageBox, QFileDialog, QInputDialog
+from PyQt5.QtGui import QImage, QImageWriter
+from PyQt5.QtCore import QDir
+
+from ubuscribble.scribble import Scribble
+
+class MainWindow(QMainWindow):
+    def __init__(self):
+        super(MainWindow, self).__init__()
+
+        self.saveAsActs = []
+
+        self.scribble= Scribble()
+        self.setCentralWidget(self.scribble)
+
+        self.createActions()
+        self.createMenus()
+
+        self.setWindowTitle("Scribble")
+        self.resize(500, 500)
+
+    def closeEvent(self, event):
+        if self.maybeSave():
+            event.accept()
+        else:
+            event.ignore()
+
+    def open(self):
+        if self.maybeSave():
+            fileName, _ = QFileDialog.getOpenFileName(self, "Open File",
+                    QDir.currentPath())
+            if fileName:
+                self.scribble.openImage(fileName)
+
+    def save(self):
+        action = self.sender()
+        fileFormat = action.data()
+        self.saveFile(fileFormat)
+
+    def penColor(self):
+        newColor = QColorDialog.getColor(self.scribble.penColor())
+        if newColor.isValid():
+            self.scribble.setPenColor(newColor)
+
+    def penWidth(self):
+        newWidth, ok = QInputDialog.getInt(self, "Scribble",
+                "Select pen width:", self.scribble.penWidth(), 1, 50, 1)
+        if ok:
+            self.scribble.setPenWidth(newWidth)
+
+    def about(self):
+        QMessageBox.about(self, "About Scribble",
+                "<p>The <b>Scribble</b> example shows how to use "
+                "QMainWindow as the base widget for an application, and how "
+                "to reimplement some of QWidget's event handlers to receive "
+                "the events generated for the application's widgets:</p>"
+                "<p> We reimplement the mouse event handlers to facilitate "
+                "drawing, the paint event handler to update the application "
+                "and the resize event handler to optimize the application's "
+                "appearance. In addition we reimplement the close event "
+                "handler to intercept the close events before terminating "
+                "the application.</p>"
+                "<p> The example also demonstrates how to use QPainter to "
+                "draw an image in real time, as well as to repaint "
+                "widgets.</p>")
+
+    def createActions(self):
+        self.openAct = QAction("&Open...", self, shortcut="Ctrl+O",
+                triggered=self.open)
+
+        for format in QImageWriter.supportedImageFormats():
+            format = str(format)
+
+            text = format.upper() + "..."
+
+            action = QAction(text, self, triggered=self.save)
+            action.setData(format)
+            self.saveAsActs.append(action)
+
+        self.printAct = QAction("&Print...", self,
+                triggered=self.scribble.print_)
+
+        self.exitAct = QAction("E&xit", self, shortcut="Ctrl+Q",
+                triggered=self.close)
+
+        self.penColorAct = QAction("&Pen Color...", self,
+                triggered=self.penColor)
+
+        self.penWidthAct = QAction("Pen &Width...", self,
+                triggered=self.penWidth)
+
+        self.clearScreenAct = QAction("&Clear Screen", self, shortcut="Ctrl+L",
+                triggered=self.scribble.clearImage)
+
+        self.aboutAct = QAction("&About", self, triggered=self.about)
+
+        self.aboutQtAct = QAction("About &Qt", self,
+                triggered=QApplication.instance().aboutQt)
+
+    def createMenus(self):
+        self.saveAsMenu = QMenu("&Save As", self)
+        for action in self.saveAsActs:
+            self.saveAsMenu.addAction(action)
+
+        fileMenu = QMenu("&File", self)
+        fileMenu.addAction(self.openAct)
+        fileMenu.addMenu(self.saveAsMenu)
+        fileMenu.addAction(self.printAct)
+        fileMenu.addSeparator()
+        fileMenu.addAction(self.exitAct)
+
+        optionMenu = QMenu("&Options", self)
+        optionMenu.addAction(self.penColorAct)
+        optionMenu.addAction(self.penWidthAct)
+        optionMenu.addSeparator()
+        optionMenu.addAction(self.clearScreenAct)
+
+        helpMenu = QMenu("&Help", self)
+        helpMenu.addAction(self.aboutAct)
+        helpMenu.addAction(self.aboutQtAct)
+
+        self.menuBar().addMenu(fileMenu)
+        self.menuBar().addMenu(optionMenu)
+        self.menuBar().addMenu(helpMenu)
+
+    def maybeSave(self):
+        if self.scribble.isModified():
+            ret = QMessageBox.warning(self, "Scribble",
+                        "The image has been modified.\n"
+                        "Do you want to save your changes?",
+                        QMessageBox.Save | QMessageBox.Discard |
+                        QMessageBox.Cancel)
+            if ret == QMessageBox.Save:
+                return self.saveFile('png')
+            elif ret == QMessageBox.Cancel:
+                return False
+
+        return True
+
+    def saveFile(self, fileFormat):
+        initialPath = QDir.currentPath() + '/untitled.' + fileFormat
+
+        fileName, _ = QFileDialog.getSaveFileName(self, "Save As", initialPath,
+                "%s Files (*.%s);;All Files (*)" % (fileFormat.upper(), fileFormat))
+        if fileName:
+            return self.scribble.saveImage(fileName, fileFormat)
+
+        return False
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QApplication(sys.argv)
+    window = MainWindow()
+    window.show()
+sys.exit(app.exec_())

Session-3/ubuscribble/.ackrc

+# Always color, even if piping to a another program
+--color
+
+# Python project settings
+--ignore-dir=.eggs/
+--ignore-dir=.tox/
+--ignore-dir=build/
+--ignore-dir=cover/

Session-3/ubuscribble/.bumpversion.cfg

+[bumpversion]
+current_version = 0.1.0
+commit = False
+tag = False
+
+[bumpversion:file:setup.py]
+search = version = "{current_version}"
+replace = version = "{new_version}"

Session-3/ubuscribble/.gitignore

+##
+# .gitignore
+#
+# Based on:
+#
+# https://github.com/github/gitignore/blob/master/Global/OSX.gitignore
+# https://github.com/github/gitignore/blob/master/Python.gitignore
+##
+
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*,cover
+cover
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/

Session-3/ubuscribble/.pullapprove.yml

+extends: globality-opensource-defaults

Session-3/ubuscribble/README.md

+# ubuscribble
+
+scribble widget for pyqt5
+
+[![Circle CI](https://circleci.com/gh/benjama.eep/ubuscribble/tree/develop.svg?style=svg)](https://circleci.com/gh/benjama.eep/ubuscribble/tree/develop)

Session-3/ubuscribble/circle.yml

+# CircleCI Configuration file
+
+machine:
+  python:
+      version: 2.7.11
+
+general:
+  artifacts:
+     - "dist"
+     - "cover"
+
+dependencies:
+  override:
+    - pip install tox tox-pyenv
+    - pyenv local 2.7.11 3.5.1  # Should correspond to pre-installed Python versions on CircleCI
+
+test:
+  override:
+     - tox
+
+deployment:
+  pypi:
+    tag: /[0-9]+(\.[0-9]+)*/
+    owner: benjama.eep
+    commands:
+      - echo "[distutils]" > ~/.pypirc
+      - echo "index-servers =" >> ~/.pypirc
+      - echo "    pypi" >> ~/.pypirc
+      - echo >> ~/.pypirc
+      - echo "[pypi]" >> ~/.pypirc
+      - echo "username:$PYPI_USERNAME" >> ~/.pypirc
+      - echo "password:$PYPI_PASSWORD" >> ~/.pypirc
+      - echo >> ~/.pypirc
+      - python setup.py register -r pypi
+      - python setup.py sdist upload -r pypi

Session-3/ubuscribble/setup.cfg

+[flake8]
+max-line-length = 120
+max-complexity = 15

Session-3/ubuscribble/setup.py

+#!/usr/bin/env python
+from setuptools import find_packages, setup
+
+project = "ubuscribble"
+version = "0.1.0"
+
+setup(
+    name=project,
+    version=version,
+    description="scribble widget for pyqt5",
+    author="Benjama EEP",
+    author_email="benjama.eep@benjama.edu",
+    url="https://github.com/benjama.eep/ubuscribble",
+    packages=find_packages(exclude=["*.tests", "*.tests.*", "tests.*", "tests"]),
+    include_package_data=True,
+    zip_safe=False,
+    install_requires=[
+        "PyQt5>=5.9"
+    ],
+    setup_requires=[
+        "nose>=1.3.6",
+    ],
+    dependency_links=[
+    ],
+    entry_points={
+    },
+    tests_require=[
+        "coverage>=3.7.1",
+        "mock>=1.0.1",
+        "PyHamcrest>=1.8.5",
+    ],
+)

Session-3/ubuscribble/tox.ini

+[tox]
+envlist = py27, py35, lint
+
+[testenv]
+commands =
+    python setup.py nosetests --with-coverage --cover-package=ubuscribble --cover-erase --cover-html
+    python setup.py sdist
+deps =
+    setuptools>=17.1
+
+[testenv:lint]
+commands=flake8 ubuscribble
+basepython=python2.7
+deps=
+    flake8
+    flake8-print

Session-3/ubuscribble/ubuscribble/scribble.py

+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+## All rights reserved.
+##
+## This file is part of the examples of PyQt.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+##     the names of its contributors may be used to endorse or promote
+##     products derived from this software without specific prior written
+##     permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+
+from PyQt5.QtCore import QDir, QPoint, QRect, QSize, Qt
+from PyQt5.QtGui import QImage, QImageWriter, QPainter, QPen, qRgb
+from PyQt5.QtWidgets import (QAction, QApplication, QColorDialog, QFileDialog,
+        QInputDialog, QMainWindow, QMenu, QMessageBox, QWidget)
+from PyQt5.QtPrintSupport import QPrintDialog, QPrinter
+
+
+class Scribble(QWidget):
+    def __init__(self, parent=None):
+        super(Scribble, self).__init__(parent)
+
+        self.setAttribute(Qt.WA_StaticContents)
+        self.modified = False
+        self.scribbling = False
+        self.myPenWidth = 1
+        self.myPenColor = Qt.blue
+        self.image = QImage()
+        self.lastPoint = QPoint()
+
+    def openImage(self, fileName):
+        loadedImage = QImage()
+        if not loadedImage.load(fileName):
+            return False
+
+        newSize = loadedImage.size().expandedTo(self.size())
+        self.resizeImage(loadedImage, newSize)
+        self.image = loadedImage
+        self.modified = False
+        self.update()
+        return True
+
+    def saveImage(self, fileName, fileFormat):
+        visibleImage = self.image
+        self.resizeImage(visibleImage, self.size())
+
+        if visibleImage.save(fileName, fileFormat):
+            self.modified = False
+            return True
+        else:
+            return False
+
+    def setPenColor(self, newColor):
+        self.myPenColor = newColor
+
+    def setPenWidth(self, newWidth):
+        self.myPenWidth = newWidth
+
+    def clearImage(self):
+        self.image.fill(qRgb(255, 255, 255))
+        self.modified = True
+        self.update()
+
+    def mousePressEvent(self, event):
+        if event.button() == Qt.LeftButton:
+            self.lastPoint = event.pos()
+            self.scribbling = True
+
+    def mouseMoveEvent(self, event):
+        if (event.buttons() & Qt.LeftButton) and self.scribbling:
+            self.drawLineTo(event.pos())
+
+    def mouseReleaseEvent(self, event):
+        if event.button() == Qt.LeftButton and self.scribbling:
+            self.drawLineTo(event.pos())
+            self.scribbling = False
+
+    def paintEvent(self, event):
+        painter = QPainter(self)
+        dirtyRect = event.rect()
+        painter.drawImage(dirtyRect, self.image, dirtyRect)
+
+    def resizeEvent(self, event):
+        if self.width() > self.image.width() or self.height() > self.image.height():
+            newWidth = max(self.width() + 128, self.image.width())
+            newHeight = max(self.height() + 128, self.image.height())
+            self.resizeImage(self.image, QSize(newWidth, newHeight))
+            self.update()
+
+        super(Scribble, self).resizeEvent(event)
+
+    def drawLineTo(self, endPoint):
+        painter = QPainter(self.image)
+        painter.setPen(QPen(self.myPenColor, self.myPenWidth, Qt.SolidLine,
+                Qt.RoundCap, Qt.RoundJoin))
+        painter.drawLine(self.lastPoint, endPoint)
+        self.modified = True
+
+        rad = self.myPenWidth / 2 + 2
+        self.update(QRect(self.lastPoint, endPoint).normalized().adjusted(-rad, -rad, +rad, +rad))
+        self.lastPoint = QPoint(endPoint)
+
+    def resizeImage(self, image, newSize):
+        if image.size() == newSize:
+            return
+
+        newImage = QImage(newSize, QImage.Format_RGB32)
+        newImage.fill(qRgb(255, 255, 255))
+        painter = QPainter(newImage)
+        painter.drawImage(QPoint(0, 0), image)
+        self.image = newImage
+
+    def print_(self):
+        printer = QPrinter(QPrinter.HighResolution)
+
+        printDialog = QPrintDialog(printer, self)
+        if printDialog.exec_() == QPrintDialog.Accepted:
+            painter = QPainter(printer)
+            rect = painter.viewport()
+            size = self.image.size()
+            size.scale(rect.size(), Qt.KeepAspectRatio)
+            painter.setViewport(rect.x(), rect.y(), size.width(), size.height())
+            painter.setWindow(self.image.rect())
+            painter.drawImage(0, 0, self.image)
+            painter.end()
+
+    def isModified(self):
+        return self.modified
+
+    def penColor(self):
+        return self.myPenColor
+
+    def penWidth(self):
+        return self.myPenWidth
+
+

Session-3/ubuscribble/ubuscribble/tests/test_example.py

+"""
+Example test.
+
+"""
+from hamcrest import (
+    assert_that,
+    equal_to,
+    is_,
+)
+
+
+def test_math():
+    assert_that(1 + 1, is_(equal_to(2)))

Session-3/ubuworkshop/.gitignore

+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*,cover
+.hypothesis/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/

Session-3/ubuworkshop/.travis.yml

+# Config file for automatic testing at travis-ci.org
+
+language: python
+python:
+  - "3.4_with_system_site_packages"
+sudo: required
+dist: trusty
+notifications:
+  email: false
+sudo: required
+before_install:
+  - sudo apt-get update
+  - sudo apt-get install -y xvfb python3-pyqt5 python3-pyqt5.qtmultimedia
+install:
+  - python setup.py install
+  - pip install coverage
+  - pip install coveralls
+  - pip install pytest
+  - pip install pytest-cov
+  - pip install pytest-faulthandler
+  - pip install pytest-mock
+  - pip install pytest-qt
+  - pip install pytest-xvfb
+script:
+  - py.test -s -v --cov=./
+after_success:
+  - coveralls
\ No newline at end of file

Session-3/ubuworkshop/README.rst

+===============================
+workshopapp
+===============================
+
+
+.. image:: https://img.shields.io/travis/benjama.eep/ubuworkshop.svg
+        :target: https://travis-ci.org/benjama.eep/ubuworkshop
+
+
+Desktop Application
+
+
+Features
+--------
+
+* TODO
+
+Credits
+---------
+
+This package was created with Cookiecutter_ and the `audreyr/cookiecutter-pypackage`_ project template.
+
+.. _Cookiecutter: https://github.com/audreyr/cookiecutter
+.. _`audreyr/cookiecutter-pypackage`: https://github.com/audreyr/cookiecutter-pypackage
+

Session-3/ubuworkshop/pytest.ini

+[pytest]
+testpaths = workshopapp/tests/

Session-3/ubuworkshop/setup.py

+from setuptools import setup
+
+requirements = [
+    # TODO: put your package requirements here
+]
+
+test_requirements = [
+    'pytest',
+    'pytest-cov',
+    'pytest-faulthandler',
+    'pytest-mock',
+    'pytest-qt',
+    'pytest-xvfb',
+]
+
+setup(
+    name='ubuworkshop',
+    version='0.0.1',
+    description="Desktop Application",
+    author="Benjama EEP",
+    author_email='benjama.eep@benjama.edu',
+    url='https://github.com/benjama.eep/ubuworkshop',
+    packages=['workshopapp', 'workshopapp.images',
+              'workshopapp.tests'],
+    package_data={'workshopapp.images': ['*.png']},
+    entry_points={
+        'console_scripts': [
+            'BenApp=workshopapp.workshopapp:main'
+        ]
+    },
+    install_requires=requirements,
+    zip_safe=False,
+    keywords='ubuworkshop',
+    classifiers=[
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+    ],
+    test_suite='tests',
+    tests_require=test_requirements
+)

Session-3/ubuworkshop/workshopapp/tests/test_workshopapp.py

+import pytest
+
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import QDialog, QFileDialog
+
+from workshopapp import workshopapp
+
+
+@pytest.fixture
+def window(qtbot):
+    """Pass the application to the test functions via a pytest fixture."""
+    new_window = workshopapp.BenApp()
+    qtbot.add_widget(new_window)
+    new_window.show()
+    return new_window
+
+
+def test_window_title(window):
+    """Check that the window title shows as declared."""
+    assert window.windowTitle() == 'BenApp'
+
+
+def test_window_geometry(window):
+    """Check that the window width and height are set as declared."""
+    assert window.width() == 1024
+    assert window.height() == 768
+
+
+def test_open_file(window, qtbot, mock):
+    """Test the Open File item of the File submenu.
+
+    Qtbot clicks on the file sub menu and then navigates to the Open File item. Mock creates
+    an object to be passed to the QFileDialog.
+    """
+    qtbot.mouseClick(window.file_sub_menu, Qt.LeftButton)
+    qtbot.keyClick(window.file_sub_menu, Qt.Key_Down)
+    mock.patch.object(QFileDialog, 'getOpenFileName', return_value=('', ''))
+    qtbot.keyClick(window.file_sub_menu, Qt.Key_Enter)
+
+
+def test_about_dialog(window, qtbot, mock):
+    """Test the About item of the Help submenu.
+
+    Qtbot clicks on the help sub menu and then navigates to the About item. Mock creates
+    a QDialog object to be used for the test.
+    """
+    qtbot.mouseClick(window.help_sub_menu, Qt.LeftButton)
+    qtbot.keyClick(window.help_sub_menu, Qt.Key_Down)
+    mock.patch.object(QDialog, 'exec_', return_value='accept')
+    qtbot.keyClick(window.help_sub_menu, Qt.Key_Enter)

Session-3/ubuworkshop/workshopapp/workshopapp.py

+import sys
+
+import pkg_resources
+
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QIcon
+from PyQt5.QtWidgets import (QAction, QApplication, QDesktopWidget, QDialog, QFileDialog,
+                             QHBoxLayout, QLabel, QMainWindow, QToolBar, QVBoxLayout, QWidget)
+
+
+class BenApp(QMainWindow):
+    """Create the main window that stores all of the widgets necessary for the application."""
+
+    def __init__(self, parent=None):
+        """Initialize the components of the main window."""
+        super(BenApp, self).__init__(parent)
+        self.resize(1024, 768)
+        self.setWindowTitle('BenApp')
+        window_icon = pkg_resources.resource_filename('workshopapp.images',
+                                                      'ic_insert_drive_file_black_48dp_1x.png')
+        self.setWindowIcon(QIcon(window_icon))
+
+        self.widget = QWidget()
+        self.layout = QHBoxLayout(self.widget)
+
+        self.menu_bar = self.menuBar()
+        self.about_dialog = AboutDialog()
+
+        self.status_bar = self.statusBar()
+        self.status_bar.showMessage('Ready', 5000)
+
+        self.file_menu()
+        self.help_menu()
+
+        self.tool_bar_items()
+
+    def file_menu(self):
+        """Create a file submenu with an Open File item that opens a file dialog."""
+        self.file_sub_menu = self.menu_bar.addMenu('File')
+
+        self.open_action = QAction('Open File', self)
+        self.open_action.setStatusTip('Open a file into BenApp.')
+        self.open_action.setShortcut('CTRL+O')
+        self.open_action.triggered.connect(self.open_file)
+
+        self.exit_action = QAction('Exit Application', self)
+        self.exit_action.setStatusTip('Exit the application.')
+        self.exit_action.setShortcut('CTRL+Q')
+        self.exit_action.triggered.connect(lambda: QApplication.quit())
+
+        self.file_sub_menu.addAction(self.open_action)
+        self.file_sub_menu.addAction(self.exit_action)
+
+    def help_menu(self):
+        """Create a help submenu with an About item tha opens an about dialog."""
+        self.help_sub_menu = self.menu_bar.addMenu('Help')
+
+        self.about_action = QAction('About', self)
+        self.about_action.setStatusTip('About the application.')
+        self.about_action.setShortcut('CTRL+H')
+        self.about_action.triggered.connect(lambda: self.about_dialog.exec_())
+
+        self.help_sub_menu.addAction(self.about_action)
+
+    def tool_bar_items(self):
+        """Create a tool bar for the main window."""
+        self.tool_bar = QToolBar()
+        self.addToolBar(Qt.TopToolBarArea, self.tool_bar)
+        self.tool_bar.setMovable(False)
+
+        open_icon = pkg_resources.resource_filename('workshopapp.images',
+                                                    'ic_open_in_new_black_48dp_1x.png')
+        tool_bar_open_action = QAction(QIcon(open_icon), 'Open File', self)
+        tool_bar_open_action.triggered.connect(self.open_file)
+
+        self.tool_bar.addAction(tool_bar_open_action)
+
+    def open_file(self):
+        """Open a QFileDialog to allow the user to open a file into the application."""
+        filename, accepted = QFileDialog.getOpenFileName(self, 'Open File')
+
+        if accepted:
+            with open(filename) as file:
+                file.read()
+
+
+class AboutDialog(QDialog):
+    """Create the necessary elements to show helpful text in a dialog."""
+
+    def __init__(self, parent=None):
+        """Display a dialog that shows application information."""
+        super(AboutDialog, self).__init__(parent)
+
+        self.setWindowTitle('About')
+        help_icon = pkg_resources.resource_filename('workshopapp.images',
+                                                    'ic_help_black_48dp_1x.png')
+        self.setWindowIcon(QIcon(help_icon))
+        self.resize(300, 200)
+
+        author = QLabel('Benjama EEP')
+        author.setAlignment(Qt.AlignCenter)
+
+        icons = QLabel('Material design icons created by Google')
+        icons.setAlignment(Qt.AlignCenter)
+
+        github = QLabel('GitHub: benjama.eep')
+        github.setAlignment(Qt.AlignCenter)
+
+        self.layout = QVBoxLayout()
+        self.layout.setAlignment(Qt.AlignVCenter)
+
+        self.layout.addWidget(author)
+        self.layout.addWidget(icons)
+        self.layout.addWidget(github)
+
+        self.setLayout(self.layout)
+
+
+def main():
+    application = QApplication(sys.argv)
+    window = BenApp()
+    desktop = QDesktopWidget().availableGeometry()
+    width = (desktop.width() - window.width()) / 2
+    height = (desktop.height() - window.height()) / 2
+    window.show()
+    window.move(width, height)
+    sys.exit(application.exec_())