Codecademy export

script.py

import codecademylib3_seaborn
import pandas as pd
from matplotlib import pyplot as plt

healthcare = pd.read_csv("healthcare.csv")
print(healthcare.head())
print(healthcare["DRG Definition"].unique())

chest_pain = healthcare[healthcare['DRG Definition'] == '313 - CHEST PAIN']
alabama_chest_pain = chest_pain[chest_pain['Provider State'] == "AL"]
costs = alabama_chest_pain[' Average Covered Charges '].values

plt.boxplot(costs)
plt.show()

states = chest_pain["chest_pain"].unique()

datasets = []
for state in states:
  datasets.append(chest_pain[chest_pain['Provider State'] == state][' Average Covered Charges '].values)
plt.figure(figsize=(20,6))
plt.boxplot(datasets, labels = states)
plt.show()

plt.boxplot(' Average Covered Charges ', 'Average Medicare Payments')
plt.show()

You should replace the code:
states = chest_pain["chest_pain"].unique()

with:
states = chest_pain["Provider State"].unique()