What's up with 3.6

This commit is contained in:
rocky
2018-01-19 22:16:53 -05:00
parent 8194595ec9
commit 0c670f2f9e

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@@ -170,11 +170,15 @@ interpreter for versions 1.5, 1.6, and 2.0.
In the Python 3 series, Python support is is strongest around 3.4 or
3.3 and drops off as you move further away from those versions. Python
3.6 changes things drastically by using word codes rather than byte
codes. That has been addressed, but then it also changes function call
opcodes and its semantics and has more problems with control flow than
3.5 has. Between Python 3.5, 3.6 and 3.7 there have been major changes
to the `MAKE_FUNCTION` and `CALL_FUNCTION` instructions. Those are
not handled yet.
codes. As a result, the jump offset field in a jump instruction
argument has been reduced. This makes the `EXTENDED_ARG` instructions
are now more prevalent in jump instruction; previously they had been
rare. Perhaps to compensate for the additional `EXTENDED_ARG`
instructions, additional jump optimization has been added. So in sum
handling control flow by ad hoc means as is currently done is worse.
Also, between Python 3.5, 3.6 and 3.7 there have been major changes to the
`MAKE_FUNCTION` and `CALL_FUNCTION` instructions.
Currently not all Python magic numbers are supported. Specifically in
some versions of Python, notably Python 3.6, the magic number has