There exists a plenty of Python distributions. For ufit we recommend to use Anaconda, because it includes almost all required libraries and it is very well suited for scientific work.
In addition it is availbable for all major platforms.
We recommend to use 64bit version of Anaconda with Python 2.7:

1. Go to the Anaconda download page
2. Select your platform (Windows/macOS/Linux) and 64-bit version with Python 2.7 (32-bit will work as well)
3. After successful installation, open your command line/terminal
   • Windows: Start → Anaconda prompt
   • macOS: Navigate to /Applications/Utilities and double-click on Terminal.
4. type

pip install ufit

1. if you want to run ufit GUI, just type:

ufitgui