Access io.IOBase in Unix build?

[pythoncoder]

The current Unix build errors if you issue

Code: Select all

import io

Is there a reason why this module is not included in the build?

I attempted to remedy this by including the line

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#define MICROPY_PY_IO               (1)

in unix/mpconfigport.h (culled from the equivalent STM file).

A modio.o file is now created but I still can't import the module. I'm not too well-up on the build system - is there another step I need to take for the module to be linked in?

[jickster]

I text searched all of 1.9.4 and I don't see that it's available in Unix

Search "MP_QSTR_io" (2 hits in 2 files)
C:\work\micropython\micropython_from_github\micropython-1.9.4\ports\esp32\mpconfigport.h (1 hit)
Line 194: { MP_OBJ_NEW_QSTR(MP_QSTR_io), (mp_obj_t)&mp_module_io }, \
C:\work\micropython\micropython_from_github\micropython-1.9.4\ports\stm32\mpconfigport.h (1 hit)
Line 227: { MP_ROM_QSTR(MP_QSTR_io), MP_ROM_PTR(&mp_module_io) }, \

You'll have to make more modifications to make mp_module_io available in Unix.

[pythoncoder]

Thanks for that - it provided the clue I was missing. It now imports correctly. Whether or not it actually works is moot until I debug my code

For the record I also needed to append the final line below

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#define MICROPY_PORT_BUILTIN_MODULES \
    MICROPY_PY_FFI_DEF \
(lines omitted)
    { MP_ROM_QSTR(MP_QSTR_io), MP_ROM_PTR(&mp_module_io) }, \

[pythoncoder]

I spoke too soon. I can import the module but it does not work. There is evidently something subtle here. I'll raise an issue.