Amazon Price Checker (Part 3)

Version 3 of my Amazon.co.uk price checker utilises the JSON (JavaScript Object Notation) module so that JSON files can be used by Python. I’ve stored the ASIN (Amazon IDs) of the Amazon products that I want to check the price of in a JSON file (called amazlist.json) and Python now calls on that file.

I’ve predefined the “spends” variable as 30 whilst I’m automating the script.

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#Amazon.co.uk Price Checker V3 / geektechstuff

import bs4, requests, json

#Import the Beautiful Soup and Requests modules

headers = {‘User-Agent’: ‘Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/604.5.6 (KHTML, like Gecko) Version/11.0.3 Safari/604.5.6’}

#Needed a headers otherwise Amazon.co.uk fails to give any details

#spends=input(‘How much spends in £ is there?:’)

spends=30

spends=float(spends)

filename=’amazlist.json’

with open(filename) as f:

    asin_data=json.load(f)

    for asin in asin_data:

        asintxt=str(asin)

        head,sep,tail=asintxt.partition(‘<‘)

        asintxt2=tail

        head,sep,tail=asintxt2.partition(‘>’)

        asintxt3=head.strip()

        print(asintxt3)        

        url = ‘http://www.amazon.co.uk/dp/’+asintxt3     

        res=requests.get(url,headers=headers)

#Requests the URL and uses the headers to make the script “look” like a web browser

        res.raise_for_status()

        soup=bs4.BeautifulSoup(res.text,”html.parser”)

#Needed the html.parser line otherwise Beautiful Soup gives a warning

        asidprice=soup.select(‘#priceblock_ourprice’)

        asidtitle=soup.select(‘#productTitle’)

        if asidprice == []:

            print(‘Error’)

        else:

            ttext=str(asidtitle)

            head,sep,tail=ttext.partition(‘>’)

            ttext2=tail

            head,sep,tail=ttext2.partition(‘<‘)

            title=head.strip()

            print(title)

        

            ptext=str(asidprice)

            head,sep,tail=ptext.partition(‘£’)

            ptext2=tail

            head,sep,tail=ptext2.partition(‘<‘)

            price=head

            print(‘£’+price)

            price=float(head)

            if price > spends:

                print(“Still too expensive”)

            else:

                print(“Its cheap enough to purchase”)        

#turns the spanIDs into strings and then removes HTML that I don’t need to print