CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=type_hints 2020-05-11T04:56:01+00:00 2020-05-11T04:56:01+00:00 warriorofwire 3454741+WarriorOfWire@users.noreply.github.com 2020-05-11T04:56:01+00:00 urn:sha1:d8491f31768b04322728bc436b2f8e6c5f2bf0d6 2020-05-11T03:45:42+00:00 warriorofwire 3454741+WarriorOfWire@users.noreply.github.com 2020-05-11T03:45:42+00:00 urn:sha1:eb3d5fa453bd04cc116e704c36a97250c93b7b4b Ujson should only worry about whitespace before JSON. This becomes apparent when you are using MP stream protocol to read directly from input buffers. When you attempt to read(1) on a UART (and possibly other protocols) you have to wait for either the byte or the timeout. Fixes: - Waiting for a timeout after you have completed reading a correct and complete JSON off the input. - Raising an OSError after reading a correct and complete JSON off the input. - Eating more data than semantically owned off the input buffer. - Blocking to start parsing JSON until the entire JSON body has been loaded into a potentially large, contiguous Python object. Code you would write before: ``` line = board_busio_uart_port.read_line() json_dict = json.loads(line) ``` or reaching for fixed buffers and swapping them around in Python. Code that did not work before that does now: ``` json_dict = json.load(board_busio_uart_port) ``` - This removes the need for intermediate copies of data when reading JSON from micropython stream protocol inputs. - It also increases total application speed by parsing JSON concurrently with receiving on boards that read from UART via DMA. - It simplifies code that users write while improving their apps. 2019-02-21T16:09:44+00:00 Dan Halbert halbert@halwitz.org 2019-02-21T16:09:44+00:00 urn:sha1:10d3a20f8a639ad8ef5555e2142052190e8a7e13 2019-02-21T05:33:36+00:00 Dan Halbert halbert@halwitz.org 2019-02-21T05:33:36+00:00 urn:sha1:c5dbdbe88c099494cd14790b8c645020538eed27 2018-08-17T00:41:35+00:00 Scott Shawcroft scott@tannewt.org 2018-08-16T20:34:12+00:00 urn:sha1:2cd166b57370ab4877ec2d9666225faeac6127ce 2018-06-18T02:35:56+00:00 Damien George damien.p.george@gmail.com 2018-06-13T02:37:49+00:00 urn:sha1:e8398a58567cc94b866d46721fd06289601f5c8a With this patch objects are only checked that they have the stream protocol at the start of their use as a stream, and afterwards the efficient mp_get_stream() helper is used to extract the stream protocol C methods. 2018-02-15T00:35:42+00:00 Damien George damien.p.george@gmail.com 2018-02-06T04:35:52+00:00 urn:sha1:d9bca1f7bddad762aac72b0fcbdd84eb22e1c3c1 2017-11-16T02:17:51+00:00 Damien George damien.p.george@gmail.com 2017-11-16T02:17:51+00:00 urn:sha1:4601759bf59e16b860a3f082e9aa4ea78356bf92 This patch simplifies the str creation API to favour the common case of creating a str object that is not forced to be interned. To force interning of a new str the new mp_obj_new_str_via_qstr function is added, and should only be used if warranted. Apart from simplifying the mp_obj_new_str function (and making it have the same signature as mp_obj_new_bytes), this patch also reduces code size by a bit (-16 bytes for bare-arm and roughly -40 bytes on the bare-metal archs). 2017-10-04T01:37:50+00:00 Damien George damien.p.george@gmail.com 2017-10-04T01:37:50+00:00 urn:sha1:a3dc1b1957d2c96d7c60c2c629c95077b03488a1 Header files that are considered internal to the py core and should not normally be included directly are: py/nlr.h - internal nlr configuration and declarations py/bc0.h - contains bytecode macro definitions py/runtime0.h - contains basic runtime enums Instead, the top-level header files to include are one of: py/obj.h - includes runtime0.h and defines everything to use the mp_obj_t type py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h, and defines everything to use the general runtime support functions Additional, specific headers (eg py/objlist.h) can be included if needed. 2017-08-13T12:52:33+00:00 Javier Candeira javier@candeira.com 2017-08-09T04:40:45+00:00 urn:sha1:35a1fea90b2cae9d5cc8e9eab62ba4c67e8786db - Changed: ValueError, TypeError, NotImplementedError - OSError invocations unchanged, because the corresponding utility function takes ints, not strings like the long form invocation. - OverflowError, IndexError and RuntimeError etc. not changed for now until we decide whether to add new utility functions.