circuitpython/docs/library/index.rst

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.. _micropython_lib:
MicroPython libraries
=====================
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Python standard libraries and micro-libraries
---------------------------------------------
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The libraries below are inherited from MicroPython.
They are similar to the standard Python libraries with the same name.
They implement a subset of or a variant of the corresponding
standard Python library.
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CircuitPython's long-term goal is that code written in CircuitPython
using Python standard libraries will be runnable on CPython without changes.
These libraries are not enabled on CircuitPython builds with
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limited flash memory, usually on non-Express builds:
``binascii``, ``errno``, ``json``, ``re``.
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These libraries are not currently enabled in any CircuitPython build, but may be in the future,
with the ``u`` prefix dropped:
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``uctypes``, ``uhashlib``, ``uzlib``.
.. toctree::
:maxdepth: 1
builtins.rst
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uheapq.rst
array.rst
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binascii.rst
collections.rst
errno.rst
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gc.rst
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hashlib.rst
io.rst
json.rst
re.rst
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sys.rst
uasyncio.rst
uctypes.rst
uselect.rst
uzlib.rst
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Omitted functions in the ``string`` library
-------------------------------------------
A few string operations are not enabled on small builds
(usually non-Express), due to limited flash memory:
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``string.center()``, ``string.partition()``, ``string.splitlines()``,
``string.reversed()``.
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CircuitPython/MicroPython-specific libraries
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--------------------------------------------
Functionality specific to the CircuitPython/MicroPython implementation is available in
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the following libraries. These libraries may change significantly or be removed in future
versions of CircuitPython.
.. toctree::
:maxdepth: 1
btree.rst
framebuf.rst
micropython.rst