mpy-cross 1.9

micropython mpy-cross distribution

mpy-cross is the micropython cross compiler utility, used to pre-compile python files into bytecode suitable for running on your target.

This project compiles mpy-cross for windows, linux and macos and distributes them in python wheels for easy installation on development pc’s.

Version

The release version of this package directly corresponds to the micropython release it’s built against.

If a wrapper update is needed for a particular release version, it will be updloaded with a .postN version

Weekly releases build against master should be available at: https://gitlab.com/alelec/mpy_cross/pipelines These will have version numbers that reflect the previous release and the current git hash built against.

Usage

mpy-cross can be run in three different ways

• From python command line

  python -m mpy_cross <args>
  python -m mpy_cross --version

• From python code

  import mpy_cross
  
  mpy_cross.run(*args, **kwargs)
  
  import subprocess
  proc = mpy_cross.run('--version', stdout=subprocess.PIPE)

where *args are arguments passed to mpy-cross, **kwargs are arguments to pass to subprocess.Popen() internally

• Standalone

  # Print out path to actual mpy-cross exe
  python -c "import mpy_cross; print(mpy_cross.mpy_cross)"
  > /home/andrew/.local/share/virtualenvs/mpy_cross-gSGkki0d/lib/python3.5/site-packages/mpy_cross/mpy-cross
  /home/corona/.local/share/virtualenvs/mpy_cross-gSGkki0d/lib/python3.5/site-packages/mpy_cross/mpy-cross --version

mpy-cross options

usage: mpy-cross [<opts>] [-X <implopt>] <input filename>
Options:
-o : output file for compiled bytecode (defaults to input with .mpy extension)
-s : source filename to embed in the compiled bytecode (defaults to input file)
-v : verbose (trace various operations); can be multiple
-O[N] : apply bytecode optimizations of level N

Target specific options:
-msmall-int-bits=number : set the maximum bits used to encode a small-int
-mno-unicode : don't support unicode in compiled strings
-mcache-lookup-bc : cache map lookups in the bytecode

Implementation specific options:
  emit={bytecode,native,viper} -- set the default code emitter
  heapsize=<n> -- set the heap size for the GC (default 2097152)