Como sabemos, Python es un lenguaje multipropósito y se usa ampliamente para secuencias de comandos. Podemos escribir scripts de Python para automatizar tareas de la vida diaria.
Digamos que queremos rastrear el precio de cualquier producto de Amazon y aprovechar el trato cuando el precio cambia por debajo de nuestro precio definido. Escribamos un script de Python para esto.
A continuación se muestra el código:
# Amazon product price tracker using Python
# importing libraries
import bs4 as bs
import sys
import schedule
import time
import urllib.request
from PyQt5.QtWebEngineWidgets import QWebEnginePage
from PyQt5.QtWidgets import QApplication
from PyQt5.QtCore import QUrl
import winsound
frequency = 2500 # Set Frequency To 2500 Hertz
duration = 1000 # Set Duration To 1000 ms == 1 second
class Page(QWebEnginePage):
def __init__(self, url):
self.app = QApplication(sys.argv)
QWebEnginePage.__init__(self)
self.html = ''
self.loadFinished.connect(self._on_load_finished)
self.load(QUrl(url))
self.app.exec_()
def _on_load_finished(self):
self.html = self.toHtml(self.Callable)
print('Load finished')
def Callable(self, html_str):
self.html = html_str
self.app.quit()
def exact_url(url):
index = url.find("B0")
index = index + 10
current_url = ""
current_url = url[:index]
return current_url
def mainprogram():
url = "https://www.amazon.in/Airtel-4G-Hotspot-E5573Cs-609-Portable/dp/B06WV9WR4Z"
exacturl = exact_url(url) # main url to extract data
page = Page(exacturl)
soup = bs.BeautifulSoup(page.html, 'html.parser')
js_test = soup.find('span', id ='priceblock_ourprice')
if js_test is None:
js_test = soup.find('span', id ='priceblock_dealprice')
str = ""
for line in js_test.stripped_strings :
str = line
# convert to integer
str = str.replace(", ", "")
current_price = int(float(str))
your_price = 600
if current_price < your_price :
print("Price decreased book now")
winsound.Beep(frequency, duration)
else:
print("Price is high please wait for the best deal")
def job():
print("Tracking....")
mainprogram()
# main code
schedule.every(1).minutes.do(job)
while True:
schedule.run_pending()
time.sleep(1)
Producción:
Tracking.... Load finished Price is high please wait for the best deal