Dependency Heatshrink seems to be deprecated with no Python 3 support

[charlesrg]

Hardware Setup Armbian 21.05.0-trunk Focal

Describe the problem Cannot build dependency heatshrink for Marlin Binary Format.

Log Building wheel for heatshrink (setup.py) ... error ERROR: Command errored out with exit status 1: command: /home/octoprint/OctoPrint/venv/bin/python3 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-insta ll-ja7czkgf/heatshrink_bd36f7454c5346aeb4ba8553b0789055/setup.py'"'"'; file='"'"'/tmp/pip-install-ja7czkgf/heatshrink_bd36f7454c5346a eb4ba8553b0789055/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(file) if os.path.exists(file) else io.StringIO('"'"'f rom setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, ' "'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-ypb03snr cwd: /tmp/pip-install-ja7czkgf/heatshrink_bd36f7454c5346aeb4ba8553b0789055/ Complete output (138 lines): running bdist_wheel running build running build_py creating build creating build/lib.linux-aarch64-3.8 creating build/lib.linux-aarch64-3.8/heatshrink copying heatshrink/init.py -> build/lib.linux-aarch64-3.8/heatshrink copying heatshrink/streams.py -> build/lib.linux-aarch64-3.8/heatshrink running build_ext building 'heatshrink.core' extension creating build/temp.linux-aarch64-3.8 creating build/temp.linux-aarch64-3.8/heatshrink creating build/temp.linux-aarch64-3.8/heatshrink/_heatshrink aarch64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I . -I./heatshrink/_heatshrink -I/home/octoprint/OctoPrint/venv/include -I/usr/include/python3.8 -c heatshrink/core.c -o build/temp.linux-a arch64-3.8/heatshrink/core.o -std=c99 heatshrink/core.c: In function ‘pyx_pf_10heatshrink_4core_7Encoder_7fill’: heatshrink/core.c:4508:38: warning: comparison of integer expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘ Py_ssize_t’ {aka ‘long int’} [-Wsign-compare] 4508 | pyx_t_5 = ((__pyx_v_total_sunk < pyx_t_9) != 0); | ^ heatshrink/core.c: In function ‘PyInit_core’: heatshrink/core.c:7279:3: warning: ‘tp_print’ is deprecated [-Wdeprecated-declarations] 7279 | pyx_type_10heatshrink_4core_Writer.tp_print = 0; | ^~~~~~~~
Additional context It might be good to use a different binary encoder as heatshrink has no updates for Python 3 support.

[benlye]

First, you can get around this problem if you follow the instructions to install a Python3 compatible version of Heatshrink.

Second, I'm not responsible for the Binary File Transfer protocol, or the library the plugin uses to interact with it. Changing Heatshrink for something else is outside of my scope.

[charlesrg]

Thank you . That definitely resolves. Appreciate the guidance on the Heatshrink workaround.

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