On: Micro Python – a lean and efficient implementation of Python 3

[plorkyeran]

It's still well over an order of magnitude bigger than Lua. MicroPython is ~200k non-blank-non-comment lines of code (as reported by cloc), while Lua 5.1 is 12k.

[carbon12 → plorkyeran]

Actually, most of that SLOC is in the stmhal/ port, of which ~100k is the ST library.

The true count comes from the py/ directory, for which cloc gives only 25k. And there are a lot of extra bits there, eg the inline assembler, the Thumb and X64 assembler helpers, etc.

EDIT: without the additional assemblers, cloc gives 22k. Remember that Python has ints, floats, complex and bignum, and these are all included in Micro Python. So that 22k SLOC includes complex arithmetic and a 1k bignum implementation.

[nly → plorkyeran]

    $ size /usr/bin/micropython 
       text    data     bss     dec     hex filename
     272356    1336    1216  274908   431dc /usr/bin/micropython
    $ size /usr/lib/liblua.so.5.2.3 
       text    data     bss     dec     hex filename
     195101    6408       8  201517   3132d /usr/lib/liblua.so.5.2.3

I think it would really interesting for µPy to be opened up to run as a hosted runtime.