User1984 :
import tkinter as tk
from tkinter import messagebox
import re,sys
from urllib.parse import urlparse
import requests,time
from bs4 import BeautifulSoup
class App(tk.Tk):
def __init__(self):
super().__init__()
self.title("Quotes Scraper v1")
self.geometry("400x250")
button = tk.Button(self, text="Collect Links",bd=3,
activebackground="grey90",command=self.start_collecting)
button.place(x=130,y=120)
def start_collecting(self):
url = "http://quotes.toscrape.com/"
res=requests.get(url)
is res.status_code!=200:
sys.exit('Check Internet')
self.clean_screen_plus()
quotes = []
while True:
soup = BeautifulSoup(res.text,'lxml')
self.update_status()
quotes+=[i.span.text.strip() for i in soup.findAll('div',{'class':'quote'})]
try:
next_page = 'http://quotes.toscrape.com/'+ soup.find('li',{'class':'next'}).a['href']
time.sleep(5)
res = requests.get(next_page)
except AttributeError:
break
self.destroy()
def clean_screen_plus(self,):
for widget in self.winfo_children():
widget.destroy()
self.geometry("300x100")
self.resizable(False, False)
self.status = tk.Label(self, text="Collecting")
self.status.grid()
self.update_idletasks()
def update_status(self):
current_status = self.status["text"]
if current_status.endswith("..."):
current_status = "Collecting"
else:
current_status += "."
# Update the message
self.status["text"] = current_status
self.update_idletasks()
self.after(1000, update_status) #updates every 1 sec
print(current_status)
App().mainloop()
Hello, I have this code, How can I keep upgrading the tkinter Label while the while loop is running, I.e I want the status to keep changing every second to update status regardless where I am at in the while loop.
expected output on the tkinter is Collecting.\n {len(quotes)} then Collecting.. {len(quotes)} ... until the while loop finishes then just self.destroy()
jizhihaoSAMA :
You should use a thread to scrap the page else it will block it.
This code worked for me,(Although it need to waste some time,I have add annotataion in my code):
import tkinter as tk
from tkinter import messagebox
import re,sys
from urllib.parse import urlparse
import requests,time
from bs4 import BeautifulSoup
import threading
class App(tk.Tk):
def __init__(self):
super().__init__()
self.title("Quotes Scraper v1")
self.geometry("400x250")
button = tk.Button(self, text="Collect Links",bd=3,
activebackground="grey90",command=self.start_thread) # start a thread instead of starting scrap the page.
button.place(x=130,y=120)
def start_thread(self):
threading.Thread(target=self.start_collecting).start() # create a thread to scrap a page in the background
def start_collecting(self): # this is your work.
url = "http://quotes.toscrape.com/"
res = requests.get(url)
if res.status_code != 200:
sys.exit('Check Internet')
self.clean_screen_plus()
quotes = []
while True:
soup = BeautifulSoup(res.text, 'lxml')
self.update_status()
quotes += [i.span.text.strip() for i in soup.findAll('div', {'class': 'quote'})]
try:
next_page = 'http://quotes.toscrape.com/' + soup.find('li', {'class': 'next'}).a['href']
time.sleep(5)
res = requests.get(next_page)
except AttributeError:
break
self.destroy()
def clean_screen_plus(self):
for widget in self.winfo_children():
widget.destroy()
self.geometry("300x100")
self.resizable(False, False)
self.status = tk.Label(self, text="Collecting")
self.status.grid()
def update_status(self):
current_status = self.status["text"]
if current_status.endswith("..."):
current_status = "Collecting"
else:
current_status += "."
# Update the message
self.status["text"] = current_status
self.update_idletasks()
self.after(1000, self.update_status) #updates every 1 sec
print(current_status)
App().mainloop()
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