[Bug 1168801] [NEW] Broken dependency, unable to update or install packages

[Luther]

NOTE: Today, 'apt-get -f install' gave me different results. It upgraded
'python3 python3-dev python3-minimal' instead of trying to uninstall
apparently everything that depends on python3. My current problem seems
to be fixed, but I don't know the bug that caused it.

NOTE2: Today is the first time I ran 'sudo apt-get update' from the
command line, though I assume that must have been happening
automatically. (I was unable to update for several days.)

> What is the complete command line issued?

I got the same error message from the following commands:
sudo apt-get install libncurses5-dev
sudo apt-get upgrade
sudo apt-get upgrade python3=3.2.3-5ubuntu1.1

I also got a similar error from the Update Manager, which was trying to
update python3 and python3-minimal, among others.

> > You might want to run 'apt-get -f install' to correct these:
> > The following packages have unmet dependencies:
> >  python3 : Depends: python3-minimal (= 3.2.3-5ubuntu1) but 3.2.3-5ubuntu1.1 is to be installed
> >  python3-dev : Depends: python3 (= 3.2.3-5ubuntu1.1) but 3.2.3-5ubuntu1 is to be installed
> > E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
> >
> > It looks like the '=' should be '>='.
> 
> The dependencies are correct.  Why is python3 being installed at a
> lesser version than the others?

I didn't ask for it. I can only assume there must have been a mismatched
version number in the package list.

Anyway, thanks for the guidance.

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https://bugs.launchpad.net/bugs/1168801

Title:
  Broken dependency, unable to update or install packages

Status in “apt” package in Ubuntu:
  Incomplete

Bug description:
  When using apt-get install:

  You might want to run 'apt-get -f install' to correct these:
  The following packages have unmet dependencies:
   python3 : Depends: python3-minimal (= 3.2.3-5ubuntu1) but 3.2.3-5ubuntu1.1 is to be installed
   python3-dev : Depends: python3 (= 3.2.3-5ubuntu1.1) but 3.2.3-5ubuntu1 is to be installed
  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

  It looks like the '=' should be '>='. If I run 'apt-get -f install',
  it tries to uninstall a very large number of packages.

  Ubuntu 12.10

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