Use Python to enhance the abilities and performance of NiceLabel software. Typically, you would use scripting to implement some computation algorithms, such as check-digit algorithms, or to add decision making into your labels or solutions.
NiceLabel installation includes embedded IronPython that allows you to use both Python modules and .NET assemblies in your code. If you want to use the non-standard Python modules, install desktop Python on your computer.
Check also this KB article.
Install two components: Python core and Python for Windows extension (PyWin32).
Python and PyWin32 should be both the same bitness (32 bit or 64 bit).