Correcting the data format

python/planets_with_moons.py

@@ -22,15 +22,15 @@ orbit_data = db["OrbitData"]
 
 # Print the names of the planets.
 print(">> The names of the planets:")
-for planet in orbit_data.find({}, {'name': 1, 'Number of Moons': 1, '_id': 0}):
+for planet in orbit_data.find({}, {'name': 1, 'n_moons': 1, '_id': 0}):
     print(planet)
 print()
 
 
 # Print planets with moons.
 print(">> Planets with moons:")
-for planet in orbit_data.find({'Number of Moons': {'$gt': 0}},
-                              {'name': 1, 'Number of Moons': 1, '_id': 0}
-                              ).sort('Number of Moons'):
+for planet in orbit_data.find({'n_moons': {'$gt': 0}},
+                              {'name': 1, 'n_moons': 1, '_id': 0}
+                              ).sort('n_moons'):
     print(planet)
 print()