i have only just become interested in mqtt (to make my custom weewx gauges near
realtime).
the link to the MQTT weewx extension mentioned below lists two prerequisites:
paho-mqtt, python-cjson.
paho-mqtt installed fine.
python-cjson fails.
i haven't found anything in the forum relating to this failure, has someone
seen it?
macos 10.13.6 with macports
pebble:weewx $ sudo python3.7 -m pip install python-cjson
...
Collecting python-cjson
Downloading python-cjson-1.2.2.tar.gz (12 kB)
Installing collected packages: python-cjson
Running setup.py install for python-cjson ... error
ERROR: Command errored out with exit status 1:
...
cjson.c:1206:9: error: non-void function 'initcjson' should return a value
[-Wreturn-type]
return;
^
69 warnings and 13 errors generated.
error: command '/usr/bin/clang' failed with exit status 1
----------------------------------------
ERROR: Command errored out with exit status 1: /opt/local/bin/python3.7 -u -c
'import sys, setuptools, tokenize; sys.argv[0] =
'"'"'/private/tmp/pip-install-pnhk7sf4/python-cjson/setup.py'"'"';
__file__='"'"'/private/tmp/pip-install-pnhk7sf4/python-cjson/setup.py'"'"';f=getattr(tokenize,
'"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"',
'"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install
--record /private/tmp/pip-record-8ccz83fi/install-record.txt
--single-version-externally-managed --compile --install-headers
/opt/local/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m/python-cjson
Check the logs for full command output.
> On 4 May 2020, at 5:28 am, Tom Keffer <[email protected]> wrote:
>
> Colin, yes, your version of mqtt.py needs to be updated. You can the link on
> the MQTT wiki page <https://github.com/weewx/weewx/wiki/mqtt>.
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