Hello, On Tue, 3 Jun 2014 23:11:46 +1000 Chris Angelico <ros...@gmail.com> wrote:
> On Tue, Jun 3, 2014 at 10:27 PM, Damien George > <damien.p.geo...@gmail.com> wrote: > > - Supports almost full Python 3 syntax, including yield (compiles > > 99.99% of the Python 3 standard library). > > - It supports a growing subset of Python 3 types and operations. > > - Part of the Python 3 standard library has already been ported to > > Micro Python, and work is ongoing to port as much as feasible. > > I don't have an actual use-case for this, as I don't target > microcontrollers, Please let me chime in, as one of MicroPython contributors. I also don't have immediate usecase for a Python microcontroller (but seeing how fast industry moves, I won't be surprised if in half-year it will seem just right). Instead, I treat MicroPython as a Python implementation which scales *down* very well. With current situation in the industry, people mostly care about scaling up - consume more gigabytes and gigahertz, catch more clouds and include heavier and heavier batteries. MicroPython goes another direction. You don't have to use it on a microcontroller. It's just if you want/need it, you'll be able - while still staying with your favorite language. I'm personally interested in using MicroPython on a small embedded Linux systems, like home routers, Internet-of-Thing devices, etc. Such devices usually have just few hundreds of megahertz of CPU power, and 2-4MB of flash. And to cut cost, the lower bound decreases all the time. > but I'm curious: What parts of Py3 syntax aren't > supported? And since you say "port as much as feasible", presumably > there'll be parts that are never supported. Are there some syntactic > elements that just take up way too much memory? Syntax-wise, all Python 3.3 syntax is supported. This includes things like yield from, annotations, etc. For example: $ micropython Micro Python v1.0.1-139-g411732e on 2014-06-03; UNIX version >>> def foo(a:int) -> float: ... return float(a) ... >>> foo(4) 4.0 "99.9%" statement is due to fact that there were some problems parsing couple of files in CPython 3.3/3.4 stdlib. Note that above talks about syntax, not semantics. Though core language semantics is actually now implemented pretty well. For example, "yield from" works pretty well, so asyncio could work ;-). (Except my analysis showed that CPython's implementation is a bit bloated for MicroPython requirements, so I started to write a simplified implementation from scratch). As can be seen from the dump above, MicroPython perfectly works on a Linux system, so we encourage any pythonista to touch a little bit of Python magic and give it a try! ;-) And we of course interested to get feedback how portable it is, etc. (As a side note, it's of course possible to compile and run MicroPython on Windows too, it's a bit more complicated than just "make".) > > ChrisA > -- > https://mail.python.org/mailman/listinfo/python-list -- Best regards, Paul mailto:pmis...@gmail.com -- https://mail.python.org/mailman/listinfo/python-list
