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  1. A = {"('All', 'Delhi', 'Mumbai')": {}, "('Container', 'Delhi', 'Mumbai')": {},
  2. "('Open', 'Delhi', 'Mumbai')": {12: [12, 22, 25], 7: [9, 5]},
  3. "('Open', 'Doon', 'Gurgaon')": {10: [1, 2, 24], 8: [4], 9: [28, 8], 7:[21]}}
  4.  
  5. new_dict = {k: v for k, v in A.items() if v}
  6. print(new_dict)
Success #stdin #stdout 0.02s 27712KB
stdin
Standard input is empty
stdout
{"('Open', 'Delhi', 'Mumbai')": {12: [12, 22, 25], 7: [9, 5]}, "('Open', 'Doon', 'Gurgaon')": {8: [4], 9: [28, 8], 10: [1, 2, 24], 7: [21]}}