Delete empty dictionary from dictionary of dictionaries

Question

I have a dictionary A:

A =  {"('All', 'Delhi', 'Mumbai')": {}, "('Container', 'Delhi', 'Mumbai')": {}, 
      "('Open', 'Delhi', 'Mumbai')": {12: [12, 22, 25], 7: [9, 5]},
      "('Open', 'Doon', 'Gurgaon')": {10: [1, 2, 24], 8: [4], 9: [28, 8], 7:[21]}}

I want to remove all the empty dictionaries, How can I do that ?

Answer 1

Use a comprehension:

>>> {k:v for k,v  in A.items() if v}
{"('Open', 'Delhi', 'Mumbai')": {12: [12, 22, 25], 7: [9, 5]}, "('Open', 'Doon', 'Gurgaon')": {10: [1, 2, 24], 8: [4], 9: [28, 8], 7: [21]}}

Answer 2

You might use a comprehension here:

new_dict = {k: v for k, v in A.items() if v}
print(new_dict)

See a demo on ideone.com.