Message12023

Are you sure that the print command itself, i.e. the console displaying the output does not dominate the formatting cost?

Then, CPython had some improvements since 2.7. How does it look on CPython 3.7?

Still, it's good to hear that Jython can perform so well compared to CPython. Unfortunately I found some situations where it's kind of the other way round, e.g. try some SymPy examples. This will require some performance-scoped revision. Distinct issue however.