Warning
These modules are inherited from MicroPython and may not work in CircuitPython as documented or at all! If they do work, they may change at any time.
.. toctree:: :maxdepth: 1 builtins.rst array.rst gc.rst math.rst sys.rst ubinascii.rst ucollections.rst uerrno.rst uhashlib.rst uheapq.rst uio.rst ujson.rst ure.rst uselect.rst usocket.rst ussl.rst ustruct.rst uzlib.rst
Functionality specific to the MicroPython implementation is available in the following libraries.
.. toctree:: :maxdepth: 1 btree.rst framebuf.rst micropython.rst network.rst uctypes.rst
The following libraries are specific to the ESP8266.
.. toctree:: :maxdepth: 2 esp.rst