🎓 EASYTUTORGUIDE · Complete Python Course

Very beginner → professional Python · 60 chapters · 900 topics

EasyTutorGuide

Chapter 6: Operators and Expressions

Complete Python lesson for very beginners. Technical words are explained in simple language, and every outline topic includes a practical example, expected output, steps, and practice.

Python CourseVery Beginner Friendly15 TopicsExamples + Output20 Q&A
Chapter 6 · 15 topics
100%

Chapter Overview

This Python tutorial chapter covers Operators and Expressions through 15 connected topics. Work through the examples in order, check the expected output, and complete the practice after each topic.

  • 6.1 Arithmetic Operators
  • 6.2 Assignment Operators
  • 6.3 Comparison Operators
  • 6.4 Logical Operators
  • 6.5 Identity Operators
  • Plus 10 additional Python topics in this chapter.

6.1 Arithmetic Operators

Arithmetic Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Arithmetic Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

a = 10
b = 3
print(a + b, a - b, a * b, a / b)

Expected Output

13 7 30 3.3333333333333335

Step-by-Step Explanation

  1. Create two numbers.
  2. Apply arithmetic operators.
  3. Notice that / produces a floating-point result.
Practice: Re-type the example for “Arithmetic Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.2 Assignment Operators

Assignment Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Assignment Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

value = (2 + 3) * 4
print(value)

Expected Output

20

Step-by-Step Explanation

  1. Read the example from top to bottom.
  2. Identify the value, object, or operation related to this topic.
  3. Change one small input and predict the result before running it.
Practice: Re-type the example for “Assignment Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.3 Comparison Operators

Comparison Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Comparison Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

age = 20
print(age >= 18)
print(18 <= age < 65)

Expected Output

True
True

Step-by-Step Explanation

  1. Comparisons produce booleans.
  2. Python supports chained comparisons.
  3. The full chain must be true for the result to be True.
Practice: Re-type the example for “Comparison Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.4 Logical Operators

Logical Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Logical Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

age = 20
has_id = True
print(age >= 18 and has_id)
print(not has_id)

Expected Output

True
False

Step-by-Step Explanation

  1. Build boolean conditions.
  2. and requires both conditions to be true.
  3. not reverses a boolean value.
Practice: Re-type the example for “Logical Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.5 Identity Operators

Identity Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Identity Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

a = []
b = a
c = []
print(a is b)
print(a is c)

Expected Output

True
False

Step-by-Step Explanation

  1. b refers to the same list as a.
  2. c is a different empty list.
  3. is checks object identity, not equal contents.
Practice: Re-type the example for “Identity Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.6 Membership Operators

Membership Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Membership Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

colors = ["red", "blue"]
print("red" in colors)
print("green" not in colors)

Expected Output

True
True

Step-by-Step Explanation

  1. in checks whether a value appears in a container.
  2. not in checks the opposite.
  3. Both expressions return booleans.
Practice: Re-type the example for “Membership Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.7 Bitwise Operators

Bitwise Operators is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Bitwise Operators (a Python idea used while learning operators and expressions).

Python / Practical Example

a = 0b1100
b = 0b1010
print(bin(a & b))

Expected Output

0b1000

Step-by-Step Explanation

  1. Write two integers in binary notation.
  2. & compares their bits.
  3. bin() displays the binary result.
Practice: Re-type the example for “Bitwise Operators”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.8 Operator Precedence

Operator Precedence is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Operator Precedence (a Python idea used while learning operators and expressions).

Python / Practical Example

result = 2 + 3 * 4
with_parentheses = (2 + 3) * 4
print(result, with_parentheses)

Expected Output

14 20

Step-by-Step Explanation

  1. Multiplication normally happens before addition.
  2. Parentheses change grouping.
  3. Use parentheses when they make the intended order clearer.
Practice: Re-type the example for “Operator Precedence”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.9 Associativity

Associativity is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Associativity (a Python idea used while learning operators and expressions).

Python / Practical Example

result = 2 + 3 * 4
with_parentheses = (2 + 3) * 4
print(result, with_parentheses)

Expected Output

14 20

Step-by-Step Explanation

  1. Multiplication normally happens before addition.
  2. Parentheses change grouping.
  3. Use parentheses when they make the intended order clearer.
Practice: Re-type the example for “Associativity”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.10 Chained Comparisons

Chained Comparisons is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Chained Comparisons (a Python idea used while learning operators and expressions).

Python / Practical Example

age = 20
print(age >= 18)
print(18 <= age < 65)

Expected Output

True
True

Step-by-Step Explanation

  1. Comparisons produce booleans.
  2. Python supports chained comparisons.
  3. The full chain must be true for the result to be True.
Practice: Re-type the example for “Chained Comparisons”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.11 Expressions

Expressions is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Expressions (a Python idea used while learning operators and expressions).

Python / Practical Example

value = (2 + 3) * 4
print(value)

Expected Output

20

Step-by-Step Explanation

  1. Read the example from top to bottom.
  2. Identify the value, object, or operation related to this topic.
  3. Change one small input and predict the result before running it.
Practice: Re-type the example for “Expressions”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.12 Augmented Assignment

Augmented Assignment is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Augmented Assignment (a Python idea used while learning operators and expressions).

Python / Practical Example

value = (2 + 3) * 4
print(value)

Expected Output

20

Step-by-Step Explanation

  1. Read the example from top to bottom.
  2. Identify the value, object, or operation related to this topic.
  3. Change one small input and predict the result before running it.
Practice: Re-type the example for “Augmented Assignment”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.13 Walrus Operator

Walrus Operator is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Walrus Operator (a Python idea used while learning operators and expressions).

Python / Practical Example

if (length := len("python")) > 5:
    print(length)

Expected Output

6

Step-by-Step Explanation

  1. := assigns a value inside an expression.
  2. length receives the string length.
  3. The if block uses that same value.
Practice: Re-type the example for “Walrus Operator”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.14 Evaluation Order

Evaluation Order is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Evaluation Order (a Python idea used while learning operators and expressions).

Python / Practical Example

result = 2 + 3 * 4
with_parentheses = (2 + 3) * 4
print(result, with_parentheses)

Expected Output

14 20

Step-by-Step Explanation

  1. Multiplication normally happens before addition.
  2. Parentheses change grouping.
  3. Use parentheses when they make the intended order clearer.
Practice: Re-type the example for “Evaluation Order”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

6.15 Operator Best Practices

Operator Best Practices is part of Operators and Expressions. In simple language, it means a Python idea used while learning operators and expressions.

It is one building block of operators and expressions and helps you write clearer, more predictable Python programs. For a very beginner, focus first on what goes in, what Python does, and what comes out; details become easier after you run a small example.

Technical words in simple language: Operator Best Practices (a Python idea used while learning operators and expressions).

Python / Practical Example

value = (2 + 3) * 4
print(value)

Expected Output

20

Step-by-Step Explanation

  1. Read the example from top to bottom.
  2. Identify the value, object, or operation related to this topic.
  3. Change one small input and predict the result before running it.
Practice: Re-type the example for “Operator Best Practices”, change one safe input, predict the result before running it, and explain in one sentence why the result changed.

Common Beginner Mistakes

  • Copying code without predicting what each line does.
  • Ignoring the first useful error message or traceback location.
  • Mixing tabs/spaces or changing indentation accidentally.
  • Using data of the wrong type for an operation.
  • Trying to learn many advanced variations before mastering one small working example.

Chapter Practice

  1. Choose three topics from this chapter and re-type their examples without copying and pasting.
  2. For each example, change one input and predict the output first.
  3. Explain five technical terms from this chapter in your own beginner-friendly words.
  4. Create one small program that combines at least two chapter topics.
  5. Keep notes about errors you made and what fixed them.

Mini Project / Challenge

Create a small Python exercise that combines at least three ideas from Operators and Expressions. Start with a tiny working version, test it, then improve it one step at a time.

  1. Choose three topics from this chapter.
  2. Write or adapt a small Python example using those topics.
  3. Predict the output before running the code.
  4. Test at least one different input.
  5. Write two sentences explaining what the program does and what you learned.

20 Questions & Answers

1. What is the main goal of Chapter 6?

The goal is to understand operators and expressions through small explanations, examples, and practice.

2. Should I memorize every command or method?

No. Understand the pattern, practice the common form, and learn how to read documentation when you need exact details.

3. Why are the examples small?

Small examples isolate one idea at a time, which makes errors easier to understand and fix.

4. What should I do when an example gives an error?

Read the last part of the traceback, check spelling and indentation, confirm the required package or file exists, and compare the input types with what the operation expects.

5. Why should I predict output before running code?

Prediction forces you to reason about the program instead of only copying it.

6. What should I remember about Arithmetic Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

7. What should I remember about Assignment Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

8. What should I remember about Comparison Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

9. What should I remember about Logical Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

10. What should I remember about Identity Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

11. What should I remember about Membership Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

12. What should I remember about Bitwise Operators?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

13. What should I remember about Operator Precedence?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

14. What should I remember about Associativity?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

15. What should I remember about Chained Comparisons?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

16. What should I remember about Expressions?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

17. What should I remember about Augmented Assignment?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

18. What should I remember about Walrus Operator?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

19. What should I remember about Evaluation Order?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.

20. What should I remember about Operator Best Practices?

Remember its beginner meaning, the problem it helps solve, the shape of a small example, and one common situation where it is appropriate.