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Scraping Website: How to Write a Script in Python

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Here's a python script that you can use as a model to scrape a website. Python script The below logic uses BeautifulSoup Package for web scraping. import requests from bs4 import BeautifulSoup url = 'https://www.example.com' response = requests.get(url) soup = BeautifulSoup(response.text, 'html.parser') # Print the title of the webpage print(soup.title.text) # Print all the links in the webpage for link in soup.find_all('a'):     print(link.get('href')) In this script, we first import the Requests and Beautiful Soup libraries. We then define the URL we want to scrape and use the Requests library to send a GET request to that URL. We then pass the response text to Beautiful Soup to parse the HTML contents of the webpage. We then use Beautiful Soup to extract the title of the webpage and print it to the console. We also use a for loop to find all the links in the webpage and print their href attributes to the console. This is just a basic example, but

How to Check If Statement Multiple Conditions in Python and Ensure Tidy Code

Here're examples for Python multiple if conditions (statements). These are useful for interviews and projects. Many programmers confuse to write IF logic in Python. Below examples useful for your quick reference.


Python IF Statements Multiple Conditions Examples

Multiple IF Conditions

  1. IF, IF
  2. IF 'ELSE'
  3. IF 'or'
  4. IF 'and'
  5. Nested IF
  6. IF 'continue'
  7. IF 'break'

In Python, the decision-making logic you can write with IF condition. You can write multiple IF conditions (Single way decision). At the same time, you can write IF and ELSE conditions (Two-way decision).


Multiple IF conditions the best example.

def main(): 
       celsius = float(input("What is the Celsius temperature? ")) 
       fahrenheit = 9/5 * celsius + 32 
       print("The temperature is", fahrenheit, "degrees Fahrenheit.")
 # Print warnings for extreme temps 
     if fahrenheit > 90: 
          print("It's really hot out there. Be careful!") 
     if fahrenheit < 30: 
          print("Brrrrr. Be sure to dress warmly!")
 

Note:  Writing IF conditions like this we call it a Single way of Decision. 

IF-Else condition the best example.


def main(): 
      print("This program finds the real solutions to a quadratic\n") 
      a = float(input("Enter coefficient a: ")) 
      b = float(input("Enter coefficient b: ")) 
      c = float(input("Enter coefficient c: ")) 
      discrim = b * b - 4 * a * c 
     if discrim < 0: 
          print("\nThe equation has no real roots!") 
     else: 
         discRoot = math.sqrt(b * b - 4 * a * c) 
         root1 = (-b + discRoot) / (2 * a) 
         root2 = (-b - discRoot) / (2 * a) 
         print("\n The solutions are:", root1, root2

Note: Writing IF conditions like this we call it Two way of Decision.

 

Nested IF condition the best example.

if condition:
	if condition:
		statements
	else:
		statements
else:
statements


IF Continue condition the best example.


Notes: 'Continue' just continue the next iteration of the loop.

>>> for num in range(2, 10):
...     if num % 2 == 0:
...         print "Found an even number", num
...         continue
...     print "Found a number", num
Found an even number 2
....
 

IF break conditions the best example.


>>> for n in range(2, 10):
...     for x in range(2, n):
...         if n % x == 0:
...             print n, 'equals', x, '*', n/x
...             break
...     else:
...         # loop fell through without finding a factor
...         print n, 'is a prime number'
...
 

IF True Best Example.


flag = True
if flag:
    print("Welcome")
    print("To")
    print("BeginnersBook.com")

IF 'and' the Best Example.

if((a>b and a>c) and (a != b and a != c)): 
    print(a, " is the largest") 
elif((b>a and b>c) and (b != a and b != c)): 
    print(b, " is the largest") 
elif((c>a and c>b) and (c != a and c != b)): 
    print(c, " is the largest") 
else: 
    print("entered numbers are equal"
 

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