Seems I have too new dev-python/idna-2.9 or too old certbot: # certbot --help Traceback (most recent call last): File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 584, in _build_master ws.require(__requires__) File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 901, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 792, in resolve raise VersionConflict(dist, req).with_context(dependent_req) pkg_resources.ContextualVersionConflict: (idna 2.9 (/usr/lib/python3.7/site-packages), Requirement.parse('idna<2.9,>=2.5'), {'requests'}) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/lib/python-exec/python3.7/certbot", line 6, in <module> from pkg_resources import load_entry_point File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 3252, in <module> @_call_aside File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 3236, in _call_aside f(*args, **kwargs) File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 3265, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 586, in _build_master return cls._build_from_requirements(__requires__) File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 599, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/usr/lib/python3.7/site-packages/pkg_resources/__init__.py", line 792, in resolve raise VersionConflict(dist, req).with_context(dependent_req) pkg_resources.ContextualVersionConflict: (idna 2.9 (/usr/lib/python3.7/site-packages), Requirement.parse('idna<2.9,>=2.5'), {'requests'})
I think this is for requests pkg_resources.ContextualVersionConflict: (idna 2.9 (/usr/lib/python3.7/site-packages), Requirement.parse('idna<2.9,>=2.5'), {'requests'}) https://github.com/certbot/certbot/blob/5586ae071ad15e79fa6cd0fd3e0243fe80db906c/certbot/setup.py ya, requests https://github.com/psf/requests/blob/9ed5db8ed28e816b597dafd328b342ec95466afa/setup.py#L46
