On Montag, 20. Oktober 2025 19:56:39 CEST Mark Sapiro wrote:
> On 10/20/25 10:32, Dennis Putnam via Mailman-users wrote:
>
> > I'm trying to install the web UI for mailman3. I am getting the
> > following failure. Can someone help? TIA.
> >
> > (venv) mailman :~$ pip install mailman-web mailman-hyperkitty
>
> ...
>
> > FileNotFoundError: [Errno 2] No such file or directory:
> >
> > '/tmp/pip-install-y364_cvm/cmarkgfm_9fcba25730114ac4a08d1e
> > 7733112a45/src/cmarkgfm/cmark.cffi.h'
> >
> > [end of output]
> >
> >
> >
> > note: This error originates from a subprocess, and is likely not a
> >
> > problem with pip.
> > error: subprocess-exited-with-error
> >
> > × Getting requirements to build wheel did not run successfully.
> > │ exit code: 1
> > ╰─> See above for output.
> >
> > note: This error originates from a subprocess, and is likely not a
> > problem with pip.
>
>
> I think I've seen a similar error, but I don't recall what I did to work
> around it. In this case cmarkgfm is a dependency of readme_renderer
> which in turn is a dependency of postorius.
> In your venv try
>
> pip install cmarkgfm
>
> first and then
>
> pip install mailman-web mailman-hyperkitty
>
> That may avoid this.
>
> --
> Mark Sapiro <[email protected]> The highway is for gamblers,
> San Francisco Bay Area, California better use your sense - B. Dylan
It seems to me cmarkgfm is broken today. I tried to update it in my working
environment and get the same error:
(venv) mailman@lists:~> pip install -U cmarkgfm
Requirement already satisfied: cmarkgfm in ./venv/lib64/python3.11/site-
packages (2024.11.20)
Collecting cmarkgfm
Using cached cmarkgfm-2025.10.20.tar.gz (145 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error
× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [41 lines of output]
Traceback (most recent call last):
File "/opt/mailman/venv/lib64/python3.11/site-packages/pip/_vendor/
pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
main()
File "/opt/mailman/venv/lib64/python3.11/site-packages/pip/_vendor/
pyproject_hooks/_in_process/_in_process.py", line 373, in main
json_out["return_val"] = hook(**hook_input["kwargs"])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/mailman/venv/lib64/python3.11/site-packages/pip/_vendor/
pyproject_hooks/_in_process/_in_process.py", line 143, in
get_requires_for_build_wheel
return hook(config_settings)
^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/build_meta.py", line 331, in get_requires_for_build_wheel
return self._get_build_requires(config_settings, requirements=[])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/build_meta.py", line 301, in _get_build_requires
self.run_setup()
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/build_meta.py", line 317, in run_setup
exec(code, locals())
File "<string>", line 5, in <module>
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/__init__.py", line 115, in setup
return distutils.core.setup(**attrs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/_distutils/core.py", line 148, in setup
_setup_distribution = dist = klass(attrs)
^^^^^^^^^^^^
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/dist.py", line 321, in __init__
_Distribution.__init__(self, dist_attrs)
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/_distutils/dist.py", line 309, in __init__
self.finalize_options()
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/dist.py", line 784, in finalize_options
ep(self)
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib/python3.11/site-
packages/setuptools/dist.py", line 804, in _finalize_setup_keywords
ep.load()(self, ep.name, value)
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib64/python3.11/site-
packages/cffi/setuptools_ext.py", line 229, in cffi_modules
add_cffi_module(dist, cffi_module)
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib64/python3.11/site-
packages/cffi/setuptools_ext.py", line 50, in add_cffi_module
execfile(build_file_name, mod_vars)
File "/tmp/pip-build-env-mdd_0nfr/overlay/lib64/python3.11/site-
packages/cffi/setuptools_ext.py", line 26, in execfile
exec(code, glob, glob)
File "src/cmarkgfm/build_cmark.py", line 21, in <module>
with open(CMARK_DEF_H_PATH, encoding='utf-8') as fh:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/pip-
install-8e12fhsc/cmarkgfm_dbeb0911a2014cbe9bb4b5b09ee7602f/src/cmarkgfm/
cmark.cffi.h'
[end of output]
note: This error originates from a subprocess, and is likely not a problem
with pip.
error: subprocess-exited-with-error
× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.
note: This error originates from a subprocess, and is likely not a problem
with pip.
--
Mit freundlichen Gruessen,
Andreas Vetter
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