Recipe Calories Calculator
Practice Project with Python and Qt Platform
Daniel Gunn is a software developer based in the UK. He holds a Computer Science degree, and he currently works as a freelance programmer specialized in Python.
Create a desktop application with the PyQt5 platform to calculate calories and nutrients of recipes and dishes. The user will have to select the foods of the recipe or dish, including the drinks and desserts, and the application will automatically break down the nutritional data of each ingredient (calories, proteins, sugars,etc) and display the totals.
You will have to design the graphical user interface according to several requirements. The app must have dropdown menus, buttons, static texts and blank spaces to enter data.
It is a fun real project, based on the multiple websites available on the internet that allow users control their menus. The data provided is real, so the application is very useful for those willing to adopt a healthy diet.
– The construction of the skeleton of the app with PyQt widgets.
– Populate the app with the data provided in a csv file so that widgets work and display it in a predefined layout.
It is also a beginner object oriented programming exercise, since you will you have to create classes and write methods to make the app work.
Pyqt5 is one of the options provided by Python (like Tkinter) to build easily interactive desktop applications. You can install it as any other Python library (pip install) and it allows to design the front-end and combine it with the back-end.
DOWNLOAD / CONTENT
You will receive an email with a ZIP file. The download is also available on your account.
The ZIP file includes:
1) INSTRUCTIONS: A PDF with the project description. It includes a short guidelines section, and a screenshot of the app so can visualize what you have to build.
2) DATA: A csv file with all the data about foods and ingredients.
– A .py file with the source code (200 lines). The code provided in the solutions has been written by a senior developer, so it is clean and easy to understand. A great way to learn and adopt right habits to create quality software.
– A PDF with detailed explanations of each chunk of code (23 pages). The instructor explains step by step what the code does and why.
WHAT YOU WILL PRACTICE
– Classes and methods.
– PyQt elements: QWidget, QApplication, QMessageBox,QComboBox, QPushButton, QLabel, etc.
– Json library.
– Conditional statements
– Loops (for)
– Read csv files
– Errors and exceptions
– “__init__” method
This project is highly recommended for Python intermediate students who have attended Python courses and feel comfortable with core Python concepts like loops, methods or functions definition. It is an excellent job to start building desktop applications and get familiar with the great PyQt platform.
If you need additional information, do not hesitate to contact us.