cache packages_distributions (#11453)
* cache packages_distributions
* remove unused exception reference
* make style
Signed-off-by: Vladimir Mandic <mandic00@live.com>
* change name to _package_map
---------
Signed-off-by: Vladimir Mandic <mandic00@live.com>
Co-authored-by: DN6 <dhruv.nair@gmail.com>
