.py in the sky

Musings on Python, Astronomy, and Open Science

Stop writing code that will break on Python 4!

With the end of support for Python 2 on the horizon (in 2020), many package developers have made their packages compatible with both Python 2 and Python 3 by using constructs such as:

if sys.version_info[0] == 2:
    # Python 2 code
    # Python 3 code

in places where things have changed between Python 2 and 3.