svgcheck installation with python 3.11

[chris-wood]

On macOS, the default svgcheck installation step seems to always fail. I work around it by removing this from the set of requirements in requirements.txt, but there's probably a better fix. The error I see is below.

$ make
Makefile:2: lib/main.mk: No such file or directory
git clone -q --depth 10  \
	    -b main https://github.com/martinthomson/i-d-template lib
python3 -m venv /Users/caw/docs/draft-foobar/lib/.venv
/Users/caw/docs/draft-foobar/lib/.venv/bin/python -m pip install --upgrade pip setuptools wheel
Requirement already satisfied: pip in ./lib/.venv/lib/python3.11/site-packages (22.3)
Collecting pip
  Using cached pip-22.3.1-py3-none-any.whl (2.1 MB)
Requirement already satisfied: setuptools in ./lib/.venv/lib/python3.11/site-packages (65.5.0)
Collecting setuptools
  Using cached setuptools-65.6.3-py3-none-any.whl (1.2 MB)
Collecting wheel
  Using cached wheel-0.38.4-py3-none-any.whl (36 kB)
Installing collected packages: wheel, setuptools, pip
  Attempting uninstall: setuptools
    Found existing installation: setuptools 65.5.0
    Uninstalling setuptools-65.5.0:
      Successfully uninstalled setuptools-65.5.0
  Attempting uninstall: pip
    Found existing installation: pip 22.3
    Uninstalling pip-22.3:
      Successfully uninstalled pip-22.3
Successfully installed pip-22.3.1 setuptools-65.6.3 wheel-0.38.4
/Users/caw/docs/draft-foobar/lib/.venv/bin/pip install -r lib/requirements.txt
Collecting archive-repo
  Using cached archive_repo-0.0.2-py3-none-any.whl (10 kB)
Collecting iddiff
  Using cached iddiff-0.4.2-py3-none-any.whl
Collecting pyang
  Using cached pyang-2.5.3-py2.py3-none-any.whl (592 kB)
Collecting pyyaml
  Using cached PyYAML-6.0-cp311-cp311-macosx_10_9_x86_64.whl (188 kB)
Collecting rfc-tidy
  Using cached rfc_tidy-0.1.1-py3-none-any.whl (4.0 kB)
Collecting svgcheck
  Using cached svgcheck-0.6.0.tar.gz (18 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [11 lines of output]
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/private/var/folders/pj/r0zjp32n0z5cnf8lr4ssy26r0000gn/T/pip-install-ixxd3qqu/svgcheck_ed96d10110754b779f47dc755a6c34bd/setup.py", line 65, in <module>
          """ + "\n".join([ changelog_entry_template % entry for entry in parse("changelog")[:3] ])
                                                                          ^^^^^^^^^^^^^^^^^^
        File "/private/var/folders/pj/r0zjp32n0z5cnf8lr4ssy26r0000gn/T/pip-install-ixxd3qqu/svgcheck_ed96d10110754b779f47dc755a6c34bd/setup.py", line 32, in parse
          changelog = open(changelog, mode='rU', encoding='utf-8')
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "<frozen codecs>", line 905, in open
      ValueError: invalid mode: 'rUb'
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

[martinthomson]

Hey @chris-wood, this is somewhat out of my hands, but I've passed it on to svgcheck with ietf-tools/svgcheck#23 . The problem seems to be down to some package using some pre-python3 syntax. I can't tell which package that is from the output you've provided and I'm not in a position to install python 3.11 right now. I'll leave this open to track that.

[nedmsmith]

I removed svgcheck from requirements.txt as was suggested above. Is there a (manual?) solution for building svgcheck?

[martinthomson]

@chris-wood @nedmsmith apparently the latest version of svgcheck has been updated. When you next get a chance, could you try again?

[nedmsmith]

@chris-wood I'm able to install svgcheck now. Thanks.

[martinthomson]

Thanks. Closing this on that basis.