PyCalc is a sample calculator implemented using Python 3 and with a PyQt5 GUI. PyCalc implements the most basic math operations, that is, division, multiplication, addition, and subtraction.

PyCalc is intended to be a demonstrative example on how you can implement a Python + PyQt5 GUI application using the Model-View-Controller (MVC) pattern.

For PyCalc to work, you need to have a proper installation of Python >= 3.6. Then you need to install the PyQt5 library in your system. This can be done by using pip3 as follows:

$ sudo pip3 install pyqt5

We don't recommend you to install PyCalc's requirements directly into your system, as PyCalc is just a sample application. So, you can use a virtual environment to test PyCalc out. To do that, you can run the following commands:

$ python3 -m venv pycalc
$ source pycalc/bin/activate
$ pip install pyqt5

After this steps are finished, you can run and test PyCalc as described in the next section.

Note: For more information on how to install PyQt5, you can take a look at the related topic on the project's documentation.

To run PyCalc from your system's command-line and try it out, you can execute the following command:

$ python3 pycalc.py

After running this command, you'll see PyCalc running on your screen.

To use PyCalc, you just need to enter a valid math expression using your mouse and then press Enter or click on the = sign:

My name is Leodanis Pozo Ramos. I'm a freelance Python Developer, and author. If you need more information about me, and my work, then you can take a look at my personal page.

PyCalc is released under the MIT License.