getNAICSdescription(naicsCode) #using Code For America Server

gistfile1.txt

# http://naics.codeforamerica.org #includes details on queries

#!!! missing NAICS codes - key errors
# see https://www.census.gov/eos/www/naics/
# get 2017 updated xml NAICS code listing here - https://www.census.gov/eos/www/naics/2017NAICS/2017_NAICS_Structure.xlsx

import requests
from bs4 import BeautifulSoup
import re
import ast

#!!! need to add ast error handling - see below

#use dynamic programming to build up internal lookup to avoid expensive web queries
naicsDescriptionLookup = {}

def getNAICSdescription(naicsCode):
    try:
        naicsDescriptionLookup[naicsCode]
    except KeyError:
        year = 2012 # last year Code For America has
        queryTemplate = 'http://naics.codeforamerica.org/v0/q?year={year!s}&code={naicsCode}'
        query = queryTemplate.format(year = year, naicsCode = naicsCode)
        #print(query)
        page = requests.get(query)
        content = ast.literal_eval(page.content.decode("utf-8")) #!!! need to add ast error handling
        naicsDescriptionLookup[naicsCode] = content['title']
        #print(content['title'])
        #print(content['description'])
        #print(content['index'])
        #assert type(content) is dict
    return naicsDescriptionLookup[naicsCode]