Message2861

One of my favorite features of Python is that there's generally one obvious way to do things.  Having two features that are equivalent in effect but slightly different in usage leads to a dual burden.  There's the obvious burden of the maintainer in having more code in the codebase, more bugs to fix and a more complicated program to work on.  The thing I'm more worried about is a new user trying to decide how to get started with Jython.  Every decision they have to make adds friction to the experience keeping them from getting up to speed.  For this they'd have to learn about both the system property, and PEP 263 encoding systems and evaluate them side by side before moving forward.  So, while this patch isn't 'harmful', the weight of it and 100 other things like it can lead to harm.