Oneshot Python

Here are some basics of Python programming that you may find useful:

  • Variables: Variables are used to store values in Python. You can create a variable by assigning a value to it using the = operator. For example:

    x = 10
    y = "hello"
  • Data types: Python has several built-in data types, such as integers, floating-point numbers, strings, and booleans. You can use the type() function to determine the data type of a value. For example:

    x = 10
    print(type(x))  # Output: <class 'int'>
    
    y = "hello"
    print(type(y))  # Output: <class 'str'>
  • Control structures: Python has control structures like if statements and for loops that allow you to control the flow of your program. For example:

    x = 10
    if x > 5:
        print("x is greater than 5")
    
    for i in range(5):
        print(i)
  • Functions: Functions are blocks of code that can be called by name. You can define a function in Python using the def keyword, and call it by using its name followed by parentheses. For example:

    def greet(name):
        print("Hello, " + name)
    
    greet("Alice")  # Output: Hello, Alice
    greet("Bob")    # Output: Hello, Bob
  • Lists: Lists are ordered collections of values. You can create a list by enclosing a comma-separated sequence of values in square brackets. You can access the elements of a list using their index, which starts at 0. For example:

    fruits = ["apple", "banana", "cherry"]
    print(fruits[0])  # Output: apple
    print(fruits[1])  # Output: banana
    print(fruits[2])  # Output: cherry
  • Dictionaries: Dictionaries are collections of key-value pairs. You can create a dictionary by enclosing a comma-separated sequence of key-value pairs in curly braces. You can access the values of a dictionary using their keys. For example:

    ages = {"Alice": 25, "Bob": 30, "Charlie": 35}
    print(ages["Alice"])  # Output: 25
    print(ages["Bob"])    # Output: 30
    print(ages["Charlie"]) # Output: 35
  • Importing modules: You can import libraries and modules into your Python code using the import keyword. For example, to import the requests and beautifulsoup4 libraries, you would use the following code:

    import requests
    import beautifulsoup4
  • Exceptions: Exceptions are errors that occur during the execution of a program. You can handle exceptions in Python using try and except statements. For example:

    try:
        x = 10 / 0
    except ZeroDivisionError:
        print("Division by zero is not allowed")

These are just a few of the basic concepts of Python programming that you will need to know to create a web scraper. There are many other features and libraries available in Python that you can learn as you continue to develop your project.