how to get the number of rows and columns in a numpy array

# get number of rows in 2D numpy array.
numOfRows = np. size(arr2D, 0)
# get number of columns in 2D numpy array.
numOfColumns = np. size(arr2D, 1)

Here is what the above code is Doing:
1. np.size(arr2D, 0) returns the number of rows in the 2D numpy array.
2. np.size(arr2D, 1) returns the number of columns in the 2D numpy array.