# read population in
import json
import requests
from pandas import DataFrame

# pop_json_url holds a 
pop_json_url = "https://gist.github.com/rdhyee/8511607/raw/f16257434352916574473e63612fcea55a0c1b1c/population_of_countries.json"
pop_list= requests.get(pop_json_url).json()

df = DataFrame(pop_list)
df[:5]

from pandas import DataFrame, Series, Index
import numpy as np

s1 = Series(np.arange(1,4))
s1