When I started with Python - around 2011ish - Python 2.7 on Windows (with Qt 4) was a reasonable choice. Not much later almost everything I did was on Python 3.

When I started with Python - around 2011ish - Python 2.7 on Windows (with Qt 4) was a reasonable choice. Not much later almost everything I did was on Python 3. No regrets, no looking back, and no missed opportunities.