boot.mpy and main.mpy are not loaded

[vshymanskyy]

What's the reason behind MicroPython skipping to load boot.mpy and main.mpy automatically at start?
.py files are preferred over .mpy on regular imports, but the boot process seems to skip .mpy completely.

[shariltumin]

This is because the MicroPython main.c does these two things when powered up or reset:

1. int ret = pyexec_file_if_exists("boot.py");
2. int ret = pyexec_file_if_exists("main.py");

These will effectively do:

>>> execfile("boot.py")
>>> execfile("main.py")

To use *.mpy we need to use import main or m=__import__("main").

[vshymanskyy]

Yes, but is there any reason why MicroPython doesn't do it by default?

[shariltumin]

I don't know why.

[shariltumin]

However, we have a simple workaround.

Rename your "main.mpy" to something else e.g. "Main.mpy" then in "main.py" you just need a line "import Main".

Maybe you already know this, but are not happy with the workaround.

[ricksorensen]

#10470

TBD