✅ Top Python Interview Questions 🐍💡

1️⃣ What is a string in Python?
Answer: A string is a sequence of characters enclosed in quotes (single, double, or triple).
Example: "Hello", 'World', '''Multi-line'''

2️⃣ How do you reverse a string in Python?
Answer:

text = "hello"
reversed_text = text[::-1]

3️⃣ What’s the difference between is and ==?
Answer:
• == checks if values are equal
• is checks if they are the same object in memory

4️⃣ How do for and while loops differ?
Answer:
• for loop is used for iterating over a sequence (list, string, etc.)
• while loop runs as long as a condition is True

5️⃣ What is the use of break, continue, and pass?
Answer:
• break: exits the loop
• continue: skips current iteration
• pass: does nothing (placeholder)

6️⃣ How to check if a substring exists in a string?
Answer:

"data" in "data science"  # Returns True

7️⃣ How do you use if-else conditions?
Answer:

x = 10  
if x > 0:  
    print("Positive")  
else:  
    print("Non-positive")

8️⃣ What are f-strings in Python?
Answer: Introduced in Python 3.6 for cleaner string formatting:

name = "Riya"
print(f"Hello, {name}")

9️⃣ How do you count characters or words in a string?
Answer:

text.count('a')      # Count 'a'  
len(text.split())    # Count words

🔟 What is a nested loop?
Answer: A loop inside another loop:

for i in range(2):  
    for j in range(3):  
        print(i, j)

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