Best regards, I kindly ask you, I have a problem and I have just started using Python, I have spent hours trying to solve this little question but I can't get it unstuck
import requests
from bs4 import BeautifulSoup
url = "https://www.sito web"
r = requests.get(url)
soup=BeautifulSoup(r.text, 'html.parser')
print(soup.title.text)
in this way, in a very curious way, he takes exactly the data I need from a web page even though I haven't explained to him in detail where it is, but I would like that once the data has been retrieved, which is something like 0.00000120, he would make a comparison with a value fixed set by me for example 0.00000110 and if the value retrieved from the web page is greater than 0.00000110 then write to me the value otherwise write to me "the value is lower!
I have tried in many ways but I get errors regarding float and string and unicode which does not can be put together.
thank you
(Oct-26-2023, 01:57 PM)codeweak Wrote: [ -> ]in a very curious way, he takes exactly the data I need from a web page even though I haven't explained to him in detail where it is
You did -
soup.title.text - you take the page title (i.e. the title that you see in browser tab). You don't scrape content from the page body (if that is what you think)
page_data = float(soup.title.text)
threshold = 0.00000110
if page_data > threshold:
print(f"It's greater than {threshold}")
else:
print(f"{it's less than or equal to {threshold}")Now, because these are float numbers, you should be aware for some
Floating Point Arithmetic: Issues and Limitations and
Is floating point math broken?
![[Image: 1-Copia.png]](https://i.postimg.cc/1twP7g5j/1-Copia.png)
Thank You so much I think that the problem now is the formatting of the data it recovers, in fact you can see in the image the type of data it perhaps also has grids.
I think that to get help in the right way I have to tell you exactly what I want to do. I have to take at this <div class="subPrice"">€,00000112</div> in this page
https://www.binance.com/it/trade/PEPE_US...&type=spot
Next I tell the program if this data is greater of (for example 0.00000100) then write it to me and tell me how much it is if instead the data you extract is less than 0.00000100 then write to me that the price has not risen. this must happen in a recursive manner until I decide to close the program, but the program must remain active in the background and warn me if the price rises, at this moment I want to add an alarm system sound if the price has risen beyond a certain value (e.g. 0.00000180)
Thank You
Is convenient and strange that price is in title of page.
This is a site page that typically would need
Selenium to parse any of the content.
So then can do it like this.
import requests
from bs4 import BeautifulSoup
url = 'https://www.binance.com/it/trade/PEPE_USDT?_from=markets&type=spot'
r = requests.get(url)
soup=BeautifulSoup(r.text, 'html.parser')
price = soup.title.text
>>> price
'0.00000121 | PEPEUSDT | Binance Spot'
>>> price = price.split()[0]
>>> price
'0.00000121'
>>> price = float(price)
>>> price
1.21e-06
>>> fixed_price = 0.00000110
>>> price < fixed_price
False
I thank everyone for the help, as you know I started about 4 days ago. And I started from 4 lines of code you can see at the top. After a few hours of studying I managed to complete the program.
.1 The program takes a numeric value from the web page and stores it. Deletes some characters and cleans the data
.2 the program prints the first data (price) with the complete time on a line
.3 the program prints recursively after 30 seconds (can be changed) in the line below updates the data constantly and also calculates the percentage of
variation and
the time in which the data is taken.
.4 makes a calculation to understand if it changes by a certain amount of percentage (which can be changed) and if it changes more than a certain value it
activates an audible warning and writes the updated price with the percentage of change.
Always update the data in the same line as the prompt, keeping only the first numerical data in the top line to calculate if it varies and by how much it varies
# This Python file uses the following encoding: utf-8
import requests
import chardet
import decimal
import numpy
import atexit
import os
import datetime
import time
import colorama # importa il modulo colorama
from colorama import Fore , Back , Style # importa la classe Fore che contiene i codici dei colori
from bs4 import BeautifulSoup
colorama.init() # inizializza il modulo colorama
url = "https://www.binance.com/it/trade/SNT_USDT?_from=markets&type=spot"
r = requests.get(url)
soup=BeautifulSoup(r.text,'html.parser')
stringa = soup.title.text
lista = stringa.split("|")
numero1 = lista[0]
numero1 = numero1.strip().strip("<title data-shuvi-head=\"true\">")
print(" Valore iniziale",format(float(numero1),".8f"),"alle",datetime.datetime.now().strftime("%H:%M:%S"))
a = numero1
a= float(numero1)
#print (type(a))
continua = True
while continua:
import requests
from bs4 import BeautifulSoup
import winsound
import chardet
import decimal
import datetime
import atexit
import os
import time
import numpy
import colorama
from colorama import Fore , Back , Style # importa la classe Fore che contiene i codici dei colori
colorama.init()
url = "https://www.binance.com/it/trade/SNT_USDT?_from=markets&type=spot"
r = requests.get(url)
soup=BeautifulSoup(r.text,'html.parser')
stringa = soup.title.text
lista = stringa.split("|")
numero = lista[0]
numero = numero.strip().strip("<title data-shuvi-head=\"true\">")
initial_value = float(numero1)
current_value = float(numero)
percentage_change = (float(current_value - float(initial_value)) / float(initial_value)) * 100
if percentage_change >= 6:
winsound.Beep(2000,6000)
print("{:>27.8f} alle {:>8s}".format(float(numero),datetime.datetime.now().strftime("%H:%M:%S ")) + "Prezzo aggiornato" + f" {percentage_change} %",end='\r',flush=True)
a = numero
a= float(numero)
time.sleep(30)