使用Python在 Tkinter 中获取白银和黄金价格

先决条件： BeautifulSoup、requests、tkinter、datetime

在本文中，我们将讨论如何在 Tkinter 中使用Python获取印度的黄金和白银价格。价格随时间而变化，黄金和白银的价格受供应、需求和投资者行为的共同影响。

我们将使用良好的回报 获取黄金和白银价格的网站。我们将为不同的操作创建多个函数：

• silver_price()：该函数用于获取白银价格。对于白银，我们将使用此 URL。
• gold_price()：该函数用于获取黄金价格。对于 Gold，我们将使用此 URL。
• get_number_from_string()：该函数用于从字符串中提取整数或浮点数。
• change_price()：该函数用于获取特定重量的黄金或白银价格。  

循序渐进的方法：

第1步＃

导入所需的库。

Python3

# Import Required library
from bs4 import BeautifulSoup
import requests
from tkinter import *
from datetime import date
from tkinter import ttk

第2步＃

获取白银和黄金价格。

蟒蛇3

# method to get the price of silver
def silver_price():
  
    # getting the request from url
    data = requests.get(
        "https://www.goodreturns.in/silver-rates/#Today+24+Carat+Gold+Rate+Per+Gram+in+India+%28INR%29")
  
    # converting the text
    soup = BeautifulSoup(data.text, 'html.parser')
  
    # finding metha info for the current price
    price = soup.find("div", class_="gold_silver_table right-align-content").find(
        "tr", class_="odd_row").findAll("td")
  
    # returnng the price in text
    return price[1].text
  
  
# method to get the price of gold
def gold_price():
  
    # getting the request from url
    data = requests.get(
        "https://www.goodreturns.in/gold-rates/#Today+24+Carat+Gold+Rate+Per+Gram+in+India+%28INR%29")
  
    # converting the text
    soup = BeautifulSoup(data.text, 'html.parser')
  
    # finding metha info for the current price
    price = soup.find("div", class_="gold_silver_table right-align-content").find(
        "tr", class_="odd_row").findAll("td")
  
    # returnng the price in text
    return price[1].text

步骤3#

从字符串中获取整数或浮点值。

蟒蛇3

# Extract Integer or Float from String
def get_number_from_string(string):
    return float(''.join([x for x in string if x.isdigit() or x == '.']))

第四步＃

获取特定重量的黄金和白银的价格。

蟒蛇3

# Get price for a particular weight
def change_price(weight_value):
  
    g_price = float(weight_value)*get_number_from_string(gold_price())
    s_price = float(weight_value)*get_number_from_string(silver_price())
  
    silver_price_label.config(text=f"{s_price} Rs")
    gold_price_label.config(text=f"{g_price} Rs")

下面是基于上述方法的实现：

蟒蛇3

# Import Required library
from bs4 import BeautifulSoup
import requests
from tkinter import *
from datetime import date
from tkinter import ttk
  
  
# Extract Integer or Float from String
def get_number_from_string(string):
    return float(''.join([x for x in string if x.isdigit() or x == '.']))
  
  
# Returns the current local date
today = date.today()
  
  
# method to get the price of silver
def silver_price():
  
    # getting the request from url
    data = requests.get(
        "https://www.goodreturns.in/silver-rates/#Today+24+Carat+Gold+Rate+Per+Gram+in+India+%28INR%29")
  
    # converting the text
    soup = BeautifulSoup(data.text, 'html.parser')
  
    # finding metha info for the current price
    price = soup.find("div", class_="gold_silver_table right-align-content").find(
        "tr", class_="odd_row").findAll("td")
  
    # returnng the price in text
    return price[1].text
  
  
# method to get the price of gold
def gold_price():
  
    # getting the request from url
    data = requests.get(
        "https://www.goodreturns.in/gold-rates/#Today+24+Carat+Gold+Rate+Per+Gram+in+India+%28INR%29")
  
    # converting the text
    soup = BeautifulSoup(data.text, 'html.parser')
  
    # finding metha info for the current price
    price = soup.find("div", class_="gold_silver_table right-align-content").find(
        "tr", class_="odd_row").findAll("td")
  
    # returnng the price in text
    return price[1].text
  
  
# Get price for a particular weight
def change_price(weight_value):
  
    g_price = float(weight_value)*get_number_from_string(gold_price())
    s_price = float(weight_value)*get_number_from_string(silver_price())
  
    silver_price_label.config(text=f"{s_price} Rs")
    gold_price_label.config(text=f"{g_price} Rs")
  
  
# Create Object
root = Tk()
  
# Set Geometry
root.geometry("400x400")
  
# Create Label
Label(root, text="SILVER AND GOLD PRICE", font=(
    "Helvetica 15 bold"), fg="blue").pack()
  
# Frame1
frame1 = Frame(root)
frame1.pack(pady=20)
  
Label(frame1, text="Today Date:- ", font=("Helvetica 15 bold")).pack(side=LEFT)
Label(frame1, text=today, font=("Helvetica 15")).pack()
  
  
# Frame2
frame2 = Frame(root)
frame2.pack(pady=20)
  
# Set Variable
variable = StringVar(root)
variable.set("1")
  
Label(frame2, text="Select Weight:- ",
      font=("Helvetica 15 bold")).pack(side=LEFT)
w = OptionMenu(frame2, variable, "1", "8", "100",
               "500", "1000", command=change_price)
w.pack(side=LEFT)
Label(frame2, text="gm", font=("Helvetica 15")).pack(side=LEFT)
  
  
# Frame3
frame3 = Frame(root)
frame3.pack()
  
Label(frame3, text="Silver Price:- ", font=("Helvetica 15 bold")).pack(side=LEFT)
silver_price_label = Label(frame3, text="", font=("Helvetica 15"))
silver_price_label.pack(pady=20)
  
  
# Frame4
frame4 = Frame(root)
frame4.pack()
  
Label(frame4, text="Gold Price:- ", font=("Helvetica 15 bold")).pack(side=LEFT)
gold_price_label = Label(frame4, text="", font=("Helvetica 15"))
gold_price_label.pack(pady=20)
  
# Execute Tkinter
root.mainloop()

输出：