** Description changed:

  Cloud images ship with empty /var/lib/apt/lists/ to save on size.
  Running 'ubuntu-bug <supported_package>' will erroneously report that
  the package is unsupported:
  
-   $ ubuntu-bug coreutils
+   $ ubuntu-bug coreutils
  
-   *** Collecting problem information
+   *** Collecting problem information
  
-   The collected information can be sent to the developers to improve the
-   application. This might take a few minutes.
-   .
+   The collected information can be sent to the developers to improve the
+   application. This might take a few minutes.
+   .
  
-   *** Problem in coreutils
+   *** Problem in coreutils
  
-   The problem cannot be reported:
+   The problem cannot be reported:
  
-   This is not an official Ubuntu package. Please remove any third party
+   This is not an official Ubuntu package. Please remove any third party
  package and try again.
  
  A simpler recreate is:
  
  $ python3 -c 'import 
apport;print(apport.packaging.is_distro_package("coreutils"))'
  False
  $ sudo apt update -qq
  All packages are up to date.
  $ python3 -c 'import 
apport;print(apport.packaging.is_distro_package("coreutils"))'
  True
  
  Desired result:
  
  The message should instruct the user to run 'apt update' as root if they
  think this is in error.   That would improve usability and avoid false
  reports about apport incorrectly flagging a package as unsupported.
  
  Additionally, if the user is root (and optionally if the set of package
  candidates only contains a 'now' component) self._cache.update();
  self._cache.open() could be called to download lists.
+ 
+ Alternatively it could just check to see if lists have been downloaded.

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https://bugs.launchpad.net/bugs/1775219

Title:
  incorrectly reports package as unsupported if apt cache is empty

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