One crucial time within the continued period of success of Python today was the long and rocky transition from Python 2 to the current version of Python 3. It was a long period of delay to finally stop the support for Python 2. The first version of Python 3 was released in 2008 with the initial plan to stop the support for Python 2 in 2015. That plan is eventually extended to 2020 since many developers need a lot more time to do the transition to Python 3. Regardless of that matter, Python remains the popular choice of programming language today.