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✨ Expanded Python Docs with New Modules + Interactive Quizzes #762

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Added interactive quizzes in Python docs modules
byteninja01 Oct 4, 2025
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fix: resolve MDX syntax error in the files
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210 changes: 206 additions & 4 deletions docs/python/conditional-statements-python.md
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Expand Up @@ -80,6 +80,37 @@ else:

---

### 🧠 Quiz 1: Basic Conditionals

**Question 1:** What will be the output of the following code?
```python
x = 7
if x > 10:
print("Large")
else:
print("Small")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `Small`

**Explanation:** Since 7 is not greater than 10, the condition `x > 10` is False, so the `else` block executes and prints "Small".
</details>

**Question 2:** What does `elif` stand for in Python?

<details>
<summary>Click to reveal answer</summary>

**Answer:** "else if"

**Explanation:** `elif` is short for "else if" and is used to check multiple conditions in sequence.
</details>

---

## Nested `if` Statements

You can put an `if` statement inside another `if` statement.
Expand Down Expand Up @@ -110,6 +141,44 @@ Adult

---

### 🧠 Quiz 2: Ternary Operator & Nested Conditions

**Question 1:** What will the variable `result` contain after this code runs?
```python
temperature = 25
result = "Hot" if temperature > 30 else "Cold"
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `"Cold"`

**Explanation:** Since 25 is not greater than 30, the condition is False, so the value after `else` ("Cold") is assigned to `result`.
</details>

**Question 2:** What will be printed by this nested if statement?
```python
x = 12
if x > 5:
if x < 15:
print("Valid")
else:
print("Too high")
else:
print("Too low")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `Valid`

**Explanation:** First, `x > 5` is True (12 > 5), so we enter the outer if block. Then, `x < 15` is also True (12 < 15), so "Valid" is printed.
</details>

---

## Logical Operators in Conditions

You can combine multiple conditions using `and`, `or`, and `not`.
Expand Down Expand Up @@ -140,6 +209,45 @@ if "apple" in fruits:

---

### 🧠 Quiz 3: Logical Operators

**Question 1:** What will be the output?
```python
a = 10
b = 20
if a > 5 and b < 15:
print("Both true")
else:
print("At least one false")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `At least one false`

**Explanation:** While `a > 5` is True (10 > 5), `b < 15` is False (20 is not less than 15). Since `and` requires both conditions to be True, the result is False and the else block executes.
</details>

**Question 2:** What does this code print?
```python
x = 8
if not x == 8:
print("Not eight")
else:
print("Is eight")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `Is eight`

**Explanation:** `x == 8` is True, but the `not` operator negates it to False. So the if condition fails and the else block runs, printing "Is eight".
</details>

---

## Indentation Rules

In Python, indentation is important for defining code blocks.
Expand Down Expand Up @@ -178,7 +286,7 @@ Write a Python program to check whether a number is **even** or **odd**.

#### 3. **Age Eligibility for Voting**

Write a program to take a person’s age as input and check if they are **eligible to vote** (18 years or older).
Write a program to take a person's age as input and check if they are **eligible to vote** (18 years or older).


#### 4. **Largest of Two Numbers**
Expand Down Expand Up @@ -229,10 +337,104 @@ Write a program to input a single character and check whether it is:

Write a program that asks the user to enter a **username** and **password**.

* If the username is `"admin"` and the password is `"12345"`, print **“Login Successful”**.
* Otherwise, print **“Invalid credentials”**.
* If the username is `"admin"` and the password is `"12345"`, print **"Login Successful"**.
* Otherwise, print **"Invalid credentials"**.

---

### 🧠 Quiz 4: Code Output Prediction

**Question 1:** What will this code output?
```python
marks = 82
if marks >= 90:
print("A")
elif marks >= 75:
print("B")
elif marks >= 60:
print("C")
else:
print("D")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `B`

**Explanation:** The code checks conditions in order. Since 82 is not ≥ 90 but is ≥ 75, it prints "B" and stops checking further conditions.
</details>

**Question 2:** Predict the output:
```python
fruits = ["apple", "banana", "cherry"]
if "mango" in fruits:
print("Found")
else:
print("Not found")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `Not found`

**Explanation:** "mango" is not in the fruits list, so the condition is False and the else block executes.
</details>

---

### 🧠 Quiz 5: Challenge Questions

**Question 1:** What's wrong with this code?
```python
x = 5
if x > 3:
print("Greater")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** Missing indentation

**Explanation:** The print statement must be indented to be inside the if block. Python uses indentation to define code blocks, and this code will raise an `IndentationError`.
</details>

**Question 2:** What will be printed?
```python
year = 2024
if year % 4 == 0 and year % 100 != 0:
print("Leap")
elif year % 400 == 0:
print("Leap")
else:
print("Not Leap")
```

<details>
<summary>Click to reveal answer</summary>

**Answer:** `Leap`

**Explanation:** 2024 is divisible by 4 (2024 % 4 == 0) and not divisible by 100 (2024 % 100 == 24, not 0), so the first condition is True and "Leap" is printed.
</details>

**Question 3:** Write a single line of code using a ternary operator to assign "Pass" to a variable `result` if `score` is 50 or more, otherwise assign "Fail".

<details>
<summary>Click to reveal answer</summary>

**Answer:**
```python
result = "Pass" if score >= 50 else "Fail"
```

**Explanation:** The ternary operator format is `value_if_true if condition else value_if_false`.
</details>

---

## Conclusion

Conditional statements are essential for decision-making in programs. Mastering `if`, `elif`, and `else` allows you to control your program's logic effectively.
Conditional statements are essential for decision-making in programs. Mastering `if`, `elif`, and `else` allows you to control your program's logic effectively.
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