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.. pybricks-requirements:: stm32-extra

:mod:`micropython` -- MicroPython internals

.. automodule:: micropython
    :no-members:


.. autofunction:: micropython.const


.. autofunction:: micropython.heap_lock


.. autofunction:: micropython.heap_unlock


.. autofunction:: micropython.kbd_intr


.. autofunction:: micropython.mem_info


.. autofunction:: micropython.opt_level


.. autofunction:: micropython.qstr_info


.. autofunction:: micropython.stack_use

Examples

Using constants for efficiency

.. literalinclude::
    ../../../examples/micropython/const.py

Checking free RAM

.. literalinclude::
    ../../../examples/micropython/memuse.py

This prints information in the format shown below. In this example for the SPIKE Prime Hub, there are 257696 bytes (251 KB) worth of memory remaining for the variables in your code.

stack: 372 out of 40184
GC: total: 258048, used: 352, free: 257696
No. of 1-blocks: 4, 2-blocks: 2, max blk sz: 8, max free sz: 16103

Getting more memory statistics

.. literalinclude::
    ../../../examples/micropython/memstat.py