Example 1: Python3 method for implementing a Priority Queue using a dictionary implemented in Python3/Trinket 

# Python3/Trinket
# Implementing Priority Queue in Python3 using dictionary - copy and paste this example into Python/Trinket

from operator import itemgetter
#itemgetter helper function allows values in dictionary to be used for ranking

# Implementing a priority Queue by
# using a dictionary with key=name, value=rank
# rank in this example Nations statistics of % Urban Population
NationRankDict = { 'India': 36, 'China': 65, 'US': 83, 'Indonesia': 59,
'Pakistan': 35, 'Nigeria': 54} # use a dictionary as a PQ

newNation={'Brazil':88}  # add a new Nation with own % Urban Pop priority
NationRankDict.update(newNation)

# Minimum Priority Queue by urban population %
minPQ = sorted(NationRankDict.items(), key=itemgetter(1)) # sort by value 1 in dictionary
print('=======minPQ is ==> ', minPQ)
print()
# Maximum Priority Queue by urban population %
maxPQ = sorted(NationRankDict.items(), key=itemgetter(1), reverse = True) # sort by reverse value 1 in dictionary
print('=======maxPQ is ==> ', maxPQ)

Example 2: Python3 method for implementing a Priority Queue in Python3/Trinket  using the queue library of helper functions can be imported - from queue import PriorityQueue 

# Python3/Trinket
# Implementing Priority Queue in Python3 using - from queue import PriorityQueue  copy and paste this example into Python/Trinket

from queue import PriorityQueue

nationPQ = PriorityQueue()  # create the priority queue

# enqueue items with ranking and details

nationPQ.put((36, "India"))
nationPQ.put((65, "China"))
nationPQ.put((54, "Nigeria"))
nationPQ.put((88, "Brazil"))

# minimum priority queue is dequeud in the default order
for i in range(nationPQ.qsize()):
    print(nationPQ.get())
   
# maximum priority queue not supported an implementation needs more work
# NOTE: can multiply rankings by -1 to reverse the order or other method