Being able to get through errors

I have been running into errors lately and instead of getting frustrated and going off and doing something else and then coming back I am going to try to figure it out myself more now. I see that it is always simple mistakes.

Sometimes it is the simple things like the word areas and not area.

area variables (in square meters)

hall = 11.25 kit = 18.0 liv = 20.0 bed = 10.75 bath = 9.50

# house information as list of lists
house = [["hallway", hall],
         ["kitchen", kit],
         ["living room", liv],
         ["bedroom", bed],
         ["bathroom", bath]]

# Print out house
print(house)

# Print out the type of house
print(type(house))

2D Numpy Array

I am learning how to use these but I got a little confused on this one. This is the correct answer below. I was introduced to it differently in the video.

# baseball is available as a regular list of lists

# Import numpy package
import numpy as np

# Create a 2D numpy array from baseball: np_baseball
np_baseball = np.array(baseball)

# Print out the shape of np_baseball
print(np_baseball.shape)

I thought that I would need to put np_baseball = np.array([[baseball]]). I thought the two brackets would do the trick but it did not need them.