Created attachment 673984 [details] Output of emerge --log net-misc/gns3-server When starting gns3server, it fails with the following output: Traceback (most recent call last): File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 567, in _build_master ws.require(__requires__) File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 884, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 775, in resolve raise VersionConflict(dist, req).with_context(dependent_req) pkg_resources.ContextualVersionConflict: (multidict 5.0.0 (/usr/lib/python3.8/site-packages), Requirement.parse('multidict<5.0,>=4.5'), {'aiohttp'}) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/lib/python-exec/python3.8/gns3server", line 33, in <module> sys.exit(load_entry_point('gns3-server==2.2.11', 'console_scripts', 'gns3server')()) File "/usr/lib/python-exec/python3.8/gns3server", line 25, in importlib_load_entry_point return next(matches).load() File "/usr/lib/python3.8/importlib/metadata.py", line 77, in load module = import_module(match.group('module')) File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1014, in _gcd_import File "<frozen importlib._bootstrap>", line 991, in _find_and_load File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 671, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 783, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/usr/lib/python3.8/site-packages/gns3server/main.py", line 29, in <module> import gns3server.utils.get_resource File "/usr/lib/python3.8/site-packages/gns3server/utils/get_resource.py", line 19, in <module> import pkg_resources File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3239, in <module> def _initialize_master_working_set(): File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3222, in _call_aside f(*args, **kwargs) File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3251, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 569, in _build_master return cls._build_from_requirements(__requires__) File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 582, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 770, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'multidict<5.0,>=4.5' distribution was not found and is required by aiohttp The very last line shows that it's looking for a version of multidict strictly older than 5.0. Installing =dev-python/multidict-4.7.6 solves the problem, gns3server starts up fine. It is possible that the dependency on ~dev-python/aiohttp-3.6.2 specifically (which needs multidict) might have something to do with it, but I'm not sure.
As of today, versions of dev-python/multidict-5.0.0 have been removed from the main repos, making it impractical to work around this bug by installing an older version until it gets solved. Could you please at least add them again?
I hit this bug as well but using python3.7. According to upstream gns3-server depends on aiohttp, and aiohttp requiers multidict to be < 5.0.0. Even using latest gns3-server version 2.2.16 it still uses the same aiohttp version, so version bump will not help here. Check https://github.com/GNS3/gns3-server/blob/master/requirements.txt
Created attachment 675988 [details] emerge --info output
I came across this bug too today (using python3.8).
Bump.
Hi, Sorry for the late reply. This is actually a bug in dev-python/aiohttp which has a wrong dependency on multidict (as already noted by needle). I've just added a PR which should bring back multidict-4.7.6 and fixes the dependency for aiohttp. I've also checked the latest version of gns3 (2.2.17) but it still depends on aiohttp-3.6.2 and also doesn't work with any newer version (obviously). After this bug is fixed I'll prepare a new PR for updating gns3 to the latest version.
Any news on this?
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5d5ca3d0f94426ca96bd3c500703fd9e7a14ec69 commit 5d5ca3d0f94426ca96bd3c500703fd9e7a14ec69 Author: Michael Mair-Keimberger <m.mairkeimberger@gmail.com> AuthorDate: 2020-12-18 14:30:20 +0000 Commit: Joonas Niilola <juippis@gentoo.org> CommitDate: 2021-01-16 08:03:01 +0000 net-misc/gns3-gui: 2.2.17 version bump Package-Manager: Portage-3.0.12, Repoman-3.0.2 Signed-off-by: Michael Mair-Keimberger <m.mairkeimberger@gmail.com> Closes: https://bugs.gentoo.org/755899 Signed-off-by: Joonas Niilola <juippis@gentoo.org> net-misc/gns3-gui/Manifest | 1 + net-misc/gns3-gui/gns3-gui-2.2.17.ebuild | 42 ++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+)
