It's written to run Python 2.7 because these problems are largely solved in Python 3, and needs solved for people on Python 2.x versions.
"Upgrade to Python3" is the usual defense to that, but it's not really practical for large companies with software such as YouTube completely written in Python 2.x.
"Upgrade to Python3" is the usual defense to that, but it's not really practical for large companies with software such as YouTube completely written in Python 2.x.