Difference between == and = in Python

In Python, both the = and == operators are used for different purposes and have distinct meanings.

= Operator in Python

The = operator is used for assignment. It assigns the value on its right-hand side to the variable on its left-hand side.

x = 10 y = "Hello"

In this example, x is assigned the value 10, and y is assigned the string "Hello".

== Operator in Python

The == operator is used for comparison. It compares the values on its left and right sides to check if they are equal.

a = 5 b = 10 result = a == b print(result) # Output: False

Here, result is False because the values of a and b are not equal.

== VS. = in Python

  1. The = operator is used for assignment.
  2. The == operator is used for value comparison.

Example illustrating the difference:

x = 10 y = 10 x = 20 # Assignment result = x == y # Comparison print(result) # Output: True (x is now 20, but x and y have the same value)

In this example, x is first assigned the value 10, then later assigned the value 20. However, the comparison x == y still evaluates to True because both x and y have the same value (10).

Conclusion

The = operator is used for assigning values to variables, while the == operator is used to compare whether two values are equal. The = operator assigns a value, whereas the == operator checks for equality.






Related Topics
  1. Python Interview Questions (Part 2)
  2. Python Interview Questions (Part 3)
  3. What is python used for?
  4. Is Python interpreted, or compiled, or both?
  1. Explain how python is interpreted
  2. How do I install pip on Windows?
  3. How do you protect Python source code?
  4. What are the disadvantages of the Python?
  5. How would you achieve web scraping in Python?
  6. How to Python Script executable on Unix
  7. What is the difference between .py and .pyc files?
  8. What is __init__.py used for in Python?
  9. What does __name__=='__main__' in Python mean?
  10. What is docstring in Python?
  11. What is the difference between runtime and compile time?
  12. How to use *args and **kwargs in Python
  13. Purpose of "/" and "//" operator in python?
  14. What is the purpose pass statement in python?
  15. Why isn't there a switch or case statement in Python?
  16. How does the ternary operator work in Python?
  17. What is the purpose of "self" in Python
  18. How do you debug a program in Python?
  19. What are literals in python?
  20. Is Python call-by-value or call-by-reference?
  21. What is the process of compilation and Loading in python?
  22. Global and Local Variables in Python
  23. Static analysis tools in Python
  24. What does the 'yield' keyword do in Python?
  25. Python Not Equal Operator (!=)
  26. What is the difference between 'is' and '==' in python
  27. How are the functions help() and dir() different?
  28. What is the python keyword "with" used for?
  29. Why isn't all memory freed when CPython exits
  30. Difference between Mutable and Immutable in Python
  31. Python Split Regex: How to use re.split() function?
  32. Accessor and Mutator methods in Python
  33. How to Implement an 'enum' in Python
  34. What is Object in Python?
  35. How to determine the type of instance and inheritance in Python
  36. Python Inheritance
  37. How is Inheritance and Overriding methods are related?
  38. How can you create a copy of an object in Python?
  39. Class Attributes vs Instance Attributes in Python
  40. Static class variables in Python
  41. Difference between @staticmethod and @classmethod in Python
  42. How to Get a List of Class Attributes in Python
  43. Does Python supports interfaces like in Java or C#?
  44. How To Work with Unicode strings in Python
  45. Difference between lists and tuples in Python?
  46. What are differences between List and Dictionary in Python
  47. Different file processing modes supported by Python
  48. Python append to a file
  49. Difference Between Multithreading vs Multiprocessing in Python
  50. Is there any way to kill a Thread in Python?
  51. What is the use of lambda in Python?
  52. What is map, filter and reduce in python?
  53. Is monkey patching considered good programming practice?
  54. What is "typeerror: 'module' object is not callable"
  55. Python: TypeError: unhashable type: 'list'
  56. How to convert bytes to string in Python?
  57. What are metaclasses in Python?