This bug was fixed in the package python-apt - 1.9.5
---------------
python-apt (1.9.5) experimental; urgency=medium
[ Marc Deslauriers ]
* SECURITY REGRESSION: crash with ubuntu-release-upgrader (LP: #1860606)
- apt/cache.py: make allow_unauthenticated argument to
fetch_archives() optional.
[ Julian Andres Klode ]
* Really bump aptdaemon break (to 1.1.1+bzr982-0ubuntu31)
-- Julian Andres Klode <j...@debian.org> Thu, 23 Jan 2020 10:55:46
+0100
** Changed in: python-apt (Ubuntu Focal)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1860606
Title:
TypeError: _fetch_archives() missing 1 required positional argument:
'allow_unauthenticated'
Status in python-apt package in Ubuntu:
Fix Released
Status in python-apt source package in Xenial:
Fix Released
Status in python-apt source package in Bionic:
Fix Released
Status in python-apt source package in Disco:
Fix Released
Status in python-apt source package in Eoan:
Fix Released
Status in python-apt source package in Focal:
Fix Released
Bug description:
I was upgrading my workstation from 19.04 to 19.10 and following that
to 20.04. In each case I used do-release-upgrade (without and with -d
respectively). The 20.04 upgrade failed as the tool crashed on invalid
function signature:
Original exception was:
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-f_816ncr/focal", line 8, in <module>
sys.exit(main())
File
"/tmp/ubuntu-release-upgrader-f_816ncr/DistUpgrade/DistUpgradeMain.py", line
238, in main
if app.run():
File
"/tmp/ubuntu-release-upgrader-f_816ncr/DistUpgrade/DistUpgradeController.py",
line 2082, in run
return self.fullUpgrade()
File
"/tmp/ubuntu-release-upgrader-f_816ncr/DistUpgrade/DistUpgradeController.py",
line 1998, in fullUpgrade
if not self.doDistUpgradeFetching():
File
"/tmp/ubuntu-release-upgrader-f_816ncr/DistUpgrade/DistUpgradeController.py",
line 1233, in doDistUpgradeFetching
self.cache._fetch_archives(self.fetcher, pm)
TypeError: _fetch_archives() missing 1 required positional argument:
'allow_unauthenticated'
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