Automated Amazon Price Tracker.py

project_WebScrapping-BeautifulSoaup/Automated Amazon Price Tracker.py

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+# Automated Amazon Price Tracker
+
+
+import time,lxml,json
+from selenium import webdriver
+from bs4 import BeautifulSoup
+from tkinter import *
+from tkinter import messagebox
+
+class AmazonPriceTracker:
+    def __init__(self):
+        self.headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"}
+        self.start_json()
+        self.start_driver()
+        self.graphics()
+
+    #The following method will initiate the json files
+    def start_json(self):
+        try:
+            with open("data.json","r") as f:
+                self.link_data = json.load(f)
+        except FileNotFoundError:
+            with open("data.json","w") as f:
+                self.link_data = {}
+                json.dump({},f)
+
+    # This method will initiate the Selenium webdriver
+    def start_driver(self):
+        chrome_options = webdriver.ChromeOptions()
+        chrome_options.add_experimental_option("detach", True)
+
+        self.google_driver = webdriver.Chrome(options=chrome_options)
+        self.google_driver.get(url="https://www.amazon.com")
+
+
+    # The following method will start the graphics
+    def graphics(self):
+        self.root = Tk()
+        self.root.minsize(width=500,height=300)
+        self.root.maxsize(width=500,height=300)
+        self.root.title("Automated Amazon Price Tracker")
+
+        self.link_label = Label(self.root,text="Amazon Link:")
+        self.link_label.place(x=75,y=100)
+        self.link_label.focus()
+
+        self.link_entry = Entry(self.root,width=27)
+        self.link_entry.place(x=200,y=100)
+
+        self.price_label = Label(self.root,text="Expected Price:")
+        self.price_label.place(x=75,y=150)
+
+        self.price_entry = Entry(self.root,width=27)
+        self.price_entry.place(x=200,y=150)
+
+
+        self.enter_button = Button(self.root,text="Enter",command=self.find_price)
+        self.enter_button.place(x=200,y=200)
+
+        self.root.mainloop()
+
+    # This method will find the price of the amazon product
+    def find_price(self):
+        product = self.link_entry.get()
+        expected_price_entry = self.price_entry.get()
+        expected_price = float(expected_price_entry)
+
+
+        if len(product) == 0 or len(expected_price_entry) == 0:
+            messagebox.showerror(message="Something is missing")
+        else:
+            if product in self.link_data:
+                messagebox.showinfo(message=f"The product was previously searched for.\nThe price was ${self.link_data[product]}")
+                time.sleep(5)
+            price = self.return_product_price(amazon_link=product)
+            change = ((expected_price - price) / (price)) * 100
+
+            if price < expected_price:
+                messagebox.showinfo(
+                    message=f"The price is ${price}.\nIt is below the expected the price of ${expected_price}.\nPrice change:{change:.2f}%")
+            elif price > expected_price:
+                messagebox.showinfo(
+                    message=f"The price is ${price}.\nIt is above the expected the price of ${expected_price}.\nPrice change:{change:.2f}%")
+            else:
+                messagebox.showinfo(message="The price has not changed")
+
+
+            new_data = {product: price}
+            self.link_data.update(new_data)
+            with open("data.json", "w") as f:
+                json.dump(self.link_data, f)
+
+            self.link_entry.delete(0,END)
+            self.price_entry.delete(0,END)
+            self.google_driver.get(url="https://www.amazon.com")
+
+
+    #This method will go to amazon and retrieve the product's price as a float
+    def return_product_price(self,amazon_link:str)->float:
+        self.google_driver.get(url=amazon_link)
+
+        soup = BeautifulSoup(self.google_driver.page_source,"lxml")
+
+        price = soup.find("span",class_="a-offscreen")
+
+        price = price.text.strip("$")
+
+        price = float(price)
+
+        return price
+
+
+
+if __name__ == "__main__":
+    apt = AmazonPriceTracker()
+
+
+