Introduction to Python

Chapter 1: Fundamentals of Python

• Python: A high-level programming language.
• Script Mode: A method for storing a program as a module.

Chapter 2: Variables and Operators

Variables

• Variable: A named location that stores a value.
• Example:
  • x = 10
  • y = 20
• Rules for Variables:
  • Cannot use spaces.
  • Can only use underscores.
  • The first character of the variable must be an alphabet or an underscore.

Operators

• Equality Operator: ==
• Division Operator: /
• Modulus Operator: %
• Power Operator: **

Chapter 3: Input and Output

Input

• Use the input() function to take data from the user.
• Example: name = input("Enter your name:")
• input() always returns a string.
• Use int() or float() to convert the string to a number.

Output

• Use the print() function to give output.
• Example: print("Hello World")
• print() will add a new line if the end argument is not specified.

Features

• Separator: Join different items in print() with commas.
• End: Additional space or new line at the end of print.

Chapter 4: Function

• Function: A group of code given a name.
• Example:
  • def function_name():
• To call a function, use its name and brackets.

Chapter 5: Comments

• Comments are for clarifying the code.
• For single line: Use #.
• For multiple lines: Use ''' or """.

Conclusion

• It is essential to understand the basics of variables, operators, input, and output in Python.
• Study these concepts in detail in the upcoming chapters.