Counting different types of aircraft
For this exercise, you have a dictionary, aircraft_engines that contains the engine type of a number of popular commercial airplanes. You want to count how many airplanes of each engine type exist in this dataset. Use your Python control flow skills by creating a for loop that contains an if/else statement that adds 1 to the counts variable for every new engine type.
This exercise is part of the course
Python for MATLAB Users
Exercise instructions
- Write a for loop that goes through each key:value pair of
airplane_types. - On each iteration, "The x airplane has y engines." should be printed out, where x is the name of the airplane and y is the type of engine.
- For each iteration, increment the values of the engine_type key in the
countsdictionary. - Finally, print the "counts" dictionary
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
counts = {}
# Loop over the key:value pairs in airplane_types
for airplane, engine_type in ____.items():
# Print the aircraft name and engine type of each aircraft
print("The {} airplane has {} engines.".format(____, ____))
# Increment the values of the engine_type key in the counts dictionary
if engine_type in counts:
counts[engine_type] = ____[engine_type] + 1
else:
counts[engine_type] = 1
print(____)