The line reg.predict(1740) does not work anymore

The line reg.predict(1740) does not work anymore.
The new versions of sklearn requiere a matrix as input.
thus, it can be solved by using this code:

obs = 1740
obs_as_matrix = np.reshape(obs, (1,1))
reg.predict(obs_as_matrix)

Alternatively:

obs = 1740
obs_as_matrix = np.array([obs]).reshape(1, 1)
reg.predict(obs_as_matrix)

Or as a data frame:

obs = 1740
obs_as_matrix = pd.DataFrame({'SAT':[1740]})
reg.predict(obs_as_matrix)