Package: mercurial-common Version: 4.8.2-1 Severity: important Hi,
as long as mercurial-common is installed, the postgres and sqlite db backend driver of Trac won't load: 2019-01-31 08:58:49,372 Trac[loader] ERROR: Skipping "trac.db.postgres = trac.db.postgres_backend": Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/trac/loader.py", line 77, in _load_eggs entry.load(require=True) File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2346, in load return self.resolve() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2352, in resolve module = __import__(self.module_name, fromlist=['__name__'], level=0) File "/usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py", line 172, in _demandimport return _hgextimport(_origimport, name, globals, locals, fromlist, level) File "/usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py", line 43, in _hgextimport return importfunc(name, globals, *args, **kwargs) File "/usr/lib/python2.7/dist-packages/trac/db/postgres_backend.py", line 46, in <module> psycopg2_version = get_pkginfo(psycopg).get('version', File "/usr/lib/python2.7/dist-packages/trac/util/__init__.py", line 806, in get_pkginfo metadata = 'METADATA' if dist.has_metadata('METADATA') else 'PKG-INFO' File "/usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py", line 151, in __getattr__ return getattr(self._module, attr) AttributeError: 'module' object has no attribute 'has_metadata' 2019-01-31 08:58:49,372 Trac[loader] DEBUG: Loading plugin "trac.db.sqlite" from "/usr/lib/python2.7/dist-packages" 2019-01-31 08:58:49,374 Trac[loader] ERROR: Skipping "trac.db.sqlite = trac.db.sqlite_backend": Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/trac/loader.py", line 77, in _load_eggs entry.load(require=True) File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2346, in load return self.resolve() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2352, in resolve module = __import__(self.module_name, fromlist=['__name__'], level=0) File "/usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py", line 172, in _demandimport return _hgextimport(_origimport, name, globals, locals, fromlist, level) File "/usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py", line 43, in _hgextimport return importfunc(name, globals, *args, **kwargs) File "/usr/lib/python2.7/dist-packages/trac/db/sqlite_backend.py", line 45, in <module> pysqlite_version_string = get_pkginfo(sqlite).get('version', File "/usr/lib/python2.7/dist-packages/trac/util/__init__.py", line 806, in get_pkginfo metadata = 'METADATA' if dist.has_metadata('METADATA') else 'PKG-INFO' File "/usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py", line 151, in __getattr__ return getattr(self._module, attr) AttributeError: 'module' object has no attribute 'has_metadata' I don't understand what the connection is, but removing mercurial-common (which ships /usr/lib/python2.7/dist-packages/hgdemandimport/demandimportpy2.py) helps. Justification for severity important: breaks unrelated packages. AndrĂ¡s -- System Information: Debian Release: 10 APT prefers unstable APT policy: (350, 'unstable'), (350, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.4.169-vs2.3.9.8-caeeng (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=hu_HU.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: runit (via /run/runit.stopit) Versions of packages mercurial-common depends on: ii python 2.7.15-4 Versions of packages mercurial-common recommends: ii ca-certificates 20190110 ii mercurial 4.8.2-1 ii sensible-utils 0.0.12 Versions of packages mercurial-common suggests: pn python-mysqldb <none> pn python-openssl <none> ii python-pygments 2.3.1+dfsg-1 pn tk [wish] <none> -- debconf-show failed -- With my luck, even suicide would only be a temporary solution.