Emails you if a product on Amazon goes on sale or gets cheaper

Amazon.py

import bs4 as bs # beautiful soup
import requests
import json  # javascript object notation
import os
import sys

#TODO Use a SQL database
# auto-key |product name | price | link


import logging
# imports the loggign module, creates a logging file called "ProgramLog.txt"
logging.basicConfig(filename='_ProgramLog.txt', level=logging.DEBUG,
					format=' %(asctime)s - %(levelname)s- %(message)s')


def main():
	email_msg = ""
	logging.debug("started at main")
	check = input("Do you want to add to the list?")
	# asks user if they want to add to the list or not
	if check.upper().startswith("Y"):
		logging.debug(("user wants to add to dict"))
		amazon = addToDict()
		logging.debug(type(amazon))
	else:
		logging.debug("user does not")
		if os.path.isfile("database.json"):
			file = open("database.json", "r")
			logging.debug(file)
			amazon = json.load(file)
			logging.debug(type(amazon))
			logging.debug(amazon)

			email_msg = checkPrice(amazon)
			send_email(email_msg)
		else:
			logging.debug("os path does not exist")
			amazon = addToDict()

	close()

def headlessmode():
	logging.debug("program is running in headless mode.")
	if os.path.isfile("database.json"):
		amazon = json.loads(json.dumps("database.json"))

def send_email(email_msg):
	print(email_msg)

def checkPrice(amazon):

	logging.debug(type(amazon))

	email_msg = ""

	for key, value in amazon.items():
		logging.debug(key)
		logging.debug(value)

		logging.debug(type(amazon))

		link = key
		price = value
		price = removePoundSign(price)

		logging.debug(link)
		logging.debug(price)

		current_price = getPrice(link)
		current_price = removePoundSign(current_price)

		if current_price < price:
			logging.debug("Price types.")
			logging.debug(type(current_price))
			logging.debug(type(price))
			percent = ((current_price) * (price) / 100)  # may be wrong
			print("{} is cheaper by {}%".format(link, percent))
			email_msg = email_msg + ("{} is cheaper by {}%".format(link, percent))
			amazon[link] = current_price  #TODO this is broken af

		else:

			email_msg = email_msg + ("{}'s price has not changed.".format(link))

	return email_msg

def removePoundSign(price):
	# strips all basic puncuation

	# defines puncuations to strip from the message
	punctuations = '''£$!()-[]{};:'"\,<>./?@#$%^&*_~'''
	# creates empty variable to store the final result in
	no_punct = ""
	# for every charecter in MESSAGE
	for char in price:
		# if charecter is not in puncuations
		if char not in punctuations:
			no_punct = no_punct + char
			# replaces puncuation with nothing

	no_punct = int(no_punct)
	return no_punct
	# returns non-puncuated string

def addToDict():
	if os.path.isfile("amazon.json"):
		logging.debug("amazon.json exists")
		amazon = json.loads(amazon)

		how_many = input(int("How many amazon links are there?: "))
		counter = 0
		while counter != how_many:
			amazon_link = input("please enter your amazon link here")
			amazon_price = getPrice(amazon_link)
			amazon.update({(amazon_link) : (amazon_price)})
			counter = counter + 1 # cani shroten this lmao
	else:
		logging.debug("amazon.son does not exist")
		amazon = {}
		how_many = input("how many links? ")
		how_many = int(how_many)
		logging.debug("asked user for shit")
		counter = 0
		while counter != how_many:
			amazon_link = input("please enter your amazon link here ")
			logging.debug("getting price")
			amazon_price = getPrice(amazon_link)
			logging.debug("updating dict")
			amazon.update({(amazon_link) : (amazon_price)})
			counter = counter + 1

	logging.debug(type(amazon))
	logging.debug(amazon)

	with open('database.json', 'w') as f:
		f.write(json.dumps(amazon))

	return amazon


def getPrice(amazon_link):
	res = requests.get((amazon_link))
	# downloads web page
	res.raise_for_status()
	# raises an error if it fails
	soup = bs.BeautifulSoup(res.text, 'html.parser')
	# parses the webpage
	logging.debug("downloaded webpage")

	elems = (soup.select(""".a-text-normal"""))
	logging.debug("parsing for price")
	# looks for price using CSS
	price = (elems[0].text.strip())
	logging.debug(price)
	# only returns the price
	return price

def close():
	sys.exit()

if __name__ == '__main__':
	main()