print ("Hello World")

import pandas as pd import numpy as np import seaborn as sns

#Add two numbers 2 + 5

def add_number(a, b): return a + b

add_number(2, 9)

a = [1, 2, 3, 4] a

a[2]

a [1:3]

a[-2]

nb = pd.read_csv('listings.csv') #head will show first 5 records nb.head()

nb = pd.read_csv('listings.csv') #tail will show last 10 records nb.tail(10)

nb['name'].head()

nb.columns

# results for multiple columns hosts = nb[['name','host_name']] hosts

nb['min_revenue'] = nb['minimum_nights'] * nb['price'] nb.head()

round(nb['min_revenue'].mean(),2)