First, make sure Python (v.3.10 or higher) is installed on your computer. To install or upgrade Python visit: python.org.
You can run PyRate within a virtual environment to make sure all the compatible dependencies are included without affecting your system Python installation following the steps below.

1. Create a virtual environment typing in a terminal console (or command prompt on Windows):

python -m venv desired_path_to_env/pyrate_env

or on Windows:

py -m venv desired_path_to_env/pyrate_env

Note that depending on the default version of Python on your machine you may have to type python3.

2. Activate the virtual environment using on MacOS/UNIX:

source desired_path_to_env/pyrate_env/bin/activate

or on Windows:

.\desired_path_to_env\pyrate_env\Scripts\activate

3. Install PyRate dependencies in the virtual environment (on Windows use py instead of python) after replacing your_path with the correct path to the PyRate-master directory:

python -m ensurepip --upgrade
python -m pip install --upgrade pip
python -m pip install -r your_path/PyRate-master/requirements.txt

You can check that PyRate can now be run in your virtual environment using:

python your_path/PyRate-master/PyRate.py -v

Note: In case the message Module FastPyRateC was not found. appears the program will still run but use a slower implementation for some of the functions. You can follow these instructions to install the fastPyRateC library.