Error: Cannot find source file:

[Opiekelly]

When trying to build the decoder under Alpine I get this error. I have followed. https://pypi.org/project/TheengsDecoder/.

And get:
`Not searching for unused variables given on the command line.
modinit_prefix:PyInit
-- Configuring done
CMake Error at CMakeLists.txt:6 (add_library):
Cannot find source file:

src/decoder.cpp

Tried extensions .c .C .c++ .cc .cpp .cxx .cu .m .M .mm .h .hh .h++ .hm
.hpp .hxx .in .txx`

[DigiH]

I have followed. https://pypi.org/project/TheengsDecoder/.

I get a 404 error with that link - trailing period ;) but there are old(er) build and install instructions there.

Any better for you if you follow

https://decoder.theengs.io/use/python.html#installing-a-development-version

There have been some recent Python build/install changes and it could well be that even with the above on a new system there might still be an issue. Let us know as there might be an additional step with the sub modules required, which will definitely also require documentation then.

[DigiH]

In decoder/python delete the pyproject.toml

rm pyproject.toml

then

pip install .

again

We really need to update the correct build.install instructions together with out python expert ;(

[Opiekelly]

That did not resolve the issue.

root@007e7788-theengsgw:~/decoder/python# pip install .
Processing /root/decoder/python
ERROR: Command errored out with exit status 1:
command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-vrwt62yt/setup.py'"'"'; file='"'"'/tmp/pip-req-build-vrwt62yt/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-y0u91bnm
cwd: /tmp/pip-req-build-vrwt62yt/
Complete output (40 lines):
/usr/local/lib/python3.9/dist-packages/setuptools_scm/_integration/setuptools.py:30: RuntimeWarning:
ERROR: setuptools==52.0.0 is used in combination with setuptools_scm>=8.x

Your build configuration is incomplete and previously worked by accident!
setuptools_scm requires setuptools>=61

Suggested workaround if applicable:
 - migrating from the deprecated setup_requires mechanism to pep517/518
   and using a pyproject.toml to declare build dependencies
   which are reliably pre-installed before running the build tools

  warnings.warn(
WARNING setuptools_scm.pyproject_reading toml section missing 'pyproject.toml does not contain a tool.setuptools_scm section'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-req-build-vrwt62yt/setup.py", line 21, in <module>
    setup(
  File "/usr/local/lib/python3.9/dist-packages/skbuild/setuptools_wrap.py", line 488, in setup
    ) = _parse_setuptools_arguments(kw)
  File "/usr/local/lib/python3.9/dist-packages/skbuild/setuptools_wrap.py", line 207, in _parse_setuptools_arguments
    dist = upstream_Distribution(setup_attrs)
  File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 432, in __init__
    _Distribution.__init__(self, {
  File "/usr/lib/python3.9/distutils/dist.py", line 292, in __init__
    self.finalize_options()
  File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 708, in finalize_options
    ep(self)
  File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 715, in _finalize_setup_keywords
    ep.load()(self, ep.name, value)
  File "/usr/local/lib/python3.9/dist-packages/setuptools_scm/_integration/setuptools.py", line 101, in version_keyword
    _assign_version(dist, config)
  File "/usr/local/lib/python3.9/dist-packages/setuptools_scm/_integration/setuptools.py", line 56, in _assign_version
    _version_missing(config)
  File "/usr/local/lib/python3.9/dist-packages/setuptools_scm/_get_version_impl.py", line 112, in _version_missing
    raise LookupError(
LookupError: setuptools-scm was unable to detect version for /tmp.

`

`

[DigiH]

Sorry about that, but I'm at my wits end with this as well.

We'll need to wait for our Python expert to chip in or you will have to wait until Friday for the new Decoder release after I have made some finishing commit to Decoder tomorrow.

[Opiekelly]

I should have been more clear. I was trying to build inside of the container running under HA. I finally got it to build using the following. Works great.

`
git clone https://github.com/theengs/decoder.git

cd decoder/
git submodule init && git submodule update
cd python
cp -r ../src .
python3 -m pip install --upgrade pip
pip install setuptools-scm --upgrade
pip install wheel --upgrade
pip install . --upgrade
`

[DigiH]

My misunderstanding then ;) Yes, building the HA Add-On container is a bit more involved.

Glad you got the separate pip install working and that it is working great for your Aranet4 CO2 monitors :)