This does the job:
stats = { 'copied': 5, 'skipped': 14 }
print( 'Copied: {copied}, Skipped: {skipped}'.format( **stats ) ) #use ** to "unpack" a dictionary
For more info please refer to:
- http://docs.python.org/py3k/library/string.html#format-examples
and - http://docs.python.org/py3k/tutorial/controlflow.html#keyword-arguments