Perl/Shell/Python Knowledge Sharing: Python

Showing posts with label Python. Show all posts

Thursday, October 15, 2026

Python Quiz: `and` vs `or` — Operand Return Behavior

### Python Quiz: `and` vs `or` — Operand Return Behavior

Test your Python knowledge with these 10 quiz questions, covering truthy/falsy values, short-circuit evaluation, and code output.

Key rule to remember:

* `x and y` → returns `x` if `x` is falsy; otherwise returns `y`.

* `x or y` → returns `x` if `x` is truthy; otherwise returns `y`.

Python and/or Operator Quiz

1. What is the output? print(0 or 15)

A. 0

B. False

C. True

D. 15

2. What is the output? print("Python" and "Quiz")

A. Python

B. False

C. Quiz

D. True

3. What is the output? print([] or "Empty")

A. Empty

B. True

C. []

D. False

4. What is the output? print(5 and 0 and 8)

A. True

B. 0

C. 5

D. 8

5. What is the output? print(None or False or "Done")

A. True

B. None

C. False

D. Done

6. Select every expression that evaluates to the integer 0. # Evaluate each expression independently

A. 9 or 0

B. 9 and 0

C. 0 and 7

D. 0 or 7

7. In Python, the expression "Hi" or "Bye" evaluates to the string "Hi".

True

False

8. In Python, [] and 10 evaluates to the integer 10 because and always returns its last operand.

True

False

9. What is printed? def check(): print("called") return 99 print(1 or check())

A. called, then 1

B. called, then 99

C. 99 only

D. 1 only

10. What is the output? value = "" result = value and 100 print(repr(result))

A. None

B. ''

C. 100

D. False

Quick revision tip: `and` stops at the first falsy operand; `or` stops at the first truthy operand. Both return the actual operand,

not necessarily `True` or `False`.

Thursday, October 8, 2026

Python Requests Package quiz

Python Requests Package — Complete Quiz with Answers

Basic + Intermediate

Q1. Which Python package is commonly used to send HTTP requests easily?

A) urllib

B) requests

C) httpclient

D) httplib

Answer: B) requests

Q2. Which attribute returns the HTTP status code of a response object r?

A) r.status

B) r.code

C) r.status_code

D) r.http_code

Answer: C) r.status_code

Q3. response.json() converts a JSON response into a Python dictionary or list.

A) True

B) False

Answer: A) True

Q4. The requests package is included in Python's standard library and does not require installation.

A) True

B) False

Answer: B) False

Q5. Which methods are valid HTTP methods supported directly by Requests?

A) delete()

B) get()

C) post()

D) put()

Answer: B, C, D

Note: delete() is also supported by Requests; this question's original answer set was incomplete.

Q6. Which parameter is used to send query-string values in requests.get()?

A) data

B) params

C) query

D) args

Answer: B) params

---

Intermediate Code Quiz

Q7. What is printed?

import requests

r = requests.get('https://example.com')

print(r.status_code)

A) 404

B) 200

C) 500

D) 301

Answer: B) 200

Q8. What does this send to the server?

requests.get(

'https://api.example.com/users',

params={'page': 2, 'limit': 10}

)

A) JSON body

B) Form data

C) URL query parameters

D) HTTP headers

Answer: C) URL query parameters

Q9. What Python object is most likely returned?

response = requests.get(url)

data = response.json()

If the API returns a JSON object: A) tuple

B) list

C) dict

D) bytes

Answer: C) dict

Q10. response.text returns the response body decoded as text.

A) True

B) False

Answer: A) True

Q11. What is the purpose of response.raise_for_status()?

A) Converts response to JSON

B) Raises an exception for unsuccessful HTTP status codes

C) Retries the request

D) Closes the connection

Answer: B

Q12. What does this request do?

requests.post(

url,

json={'name': 'John'},

headers={'Authorization': 'Bearer TOKEN'}

)

A) Sends data as URL parameters

B) Sends JSON data in the request body

C) Sends a POST request

D) Sends an Authorization header

Answer: B, C, D

Q13. What does timeout=5 do?

requests.get(url, timeout=5)

A) Retries 5 times

B) Sets a 5-second timeout

C) Sends 5 requests

D) Waits 5 minutes

Answer: B) Sets a 5-second timeout

Q14. Which exception can be caught for timeout or other Requests-related network errors?

try:

requests.get(url, timeout=3)

except ______ as e:

print(e)

A) ValueError

B) KeyError

C) requests.exceptions.RequestException

D) IndexError

Answer: C

Q15. What does this return?

r.headers.get('Content-Type')

A) HTTP status code

B) Content-Type header value

C) Request body

D) URL

Answer: B) Content-Type header value

Q16. What does this send?

requests.post(url, data={'name': 'John'})

A) JSON data

B) Form data

C) Query parameters

D) Cookies

Answer: B) Form data

Fresh Intermediate Code Quiz

Q17. What does r.ok indicate?

r = requests.get(url)

print(r.ok)

A) True only for status 200

B) True only for status 201

C) True only for status 300

D) True when status is below 400

Answer: D

Q18. What does r.content provide?

r = requests.get(url)

content = r.content

A) JSON dictionary

B) Raw response bytes

C) HTTP status

D) Headers

Answer: B) Raw response bytes

Q19. What happens for HTTP 404?

r = requests.get(url)

r.raise_for_status()

print("Done")

A) Prints Done

B) Returns 200

C) Retries automatically

D) Raises HTTPError

Answer: D

Q20. Which arguments can be supplied to requests.get()?

A) cookies

B) headers

C) verify

D) All of the above

Answer: D

Q21. A requests.Session can persist settings such as cookies across multiple requests.

A) True

B) False

Answer: A) True

Q22. What is the purpose of this code?

session = requests.Session()

session.headers.update({'User-Agent': 'MyApp'})

A) Sends one request

B) Sets a default header for session requests

C) Deletes headers

D) Disables cookies

Answer: B

Q23. What does this do?

requests.get(url, allow_redirects=False)

A) Prevents automatic redirects

B) Forces a redirect

C) Disables HTTPS

D) Retries redirects

Answer: A

Q24. What does this do?

requests.get(

url,

cookies={'session_id': 'abc123'}

)

A) Sends cookies with the request

B) Creates a new session

C) Deletes cookies

D) Reads response headers

Answer: A

Q25. Which code correctly saves an image response?

r = requests.get(url)

A)open('image.jpg', 'w').write(r.text)

B)open('image.jpg', 'r').write(r.content)

C) open('image.jpg', 'wb').write(r.content)

D) open('image.jpg', 'a').write(r.json())

Answer: C

Q26. What is the purpose of requests.head(url)?

A) Downloads the complete response body

B) Sends a POST request

C) Deletes a resource

D) Fetches headers without normally downloading the response body

Answer: D

Quick Revision

requests.get() → GET request

requests.post() → POST request

requests.put() → PUT request

requests.delete() → DELETE request

params={} → URL query parameters

data={} → Form/request data

json={} → JSON request body

headers={} → HTTP headers

cookies={} → Cookies

r.status_code → HTTP status code

r.ok → True for status < 400

r.text → Response as text

r.content → Response as bytes

r.json() → Parse JSON response

r.headers → Response headers

raise_for_status() → Raise HTTP error

timeout=5 → Request timeout

Session() → Persist settings/cookies

allow_redirects=False→ Don't follow redirects

head() → Fetch headers

Tuesday, October 6, 2026

Python try-except Quiz

1. What is the output? try: print(10 / 0) except ZeroDivisionError: print("Error")

A. Error

B. 10

C. No output

D. 0

2. What happens if an exception occurs inside try and there is no matching except block?

A. The finally block is skipped automatically

B. The exception becomes None

C. The program raises the exception

D. Python ignores the exception

3. A finally block normally executes whether or not an exception occurs in the associated try block.

True

False

4. What is the output? try: x = int("abc") except ValueError: print("Invalid") else: print("Valid")

A. No output

B. Valid

C. Invalid

D. abc

5. Which of the following can be used to explicitly raise an exception in Python? Select all that apply.

A. throw ValueError("Invalid")

B. raise RuntimeError("Failed")

C. raise ValueError("Invalid")

D. raise Exception("Problem")

6. The except block must always specify an exception type.

True

False

7. What is the output? try: print(5 / 1) except ZeroDivisionError: print("Error") else: print("Success")

A. Success only

B. 5 then Error

C. 5.0 then Success

D. Error

8. Which exception is most appropriate when accessing a dictionary key that does not exist?

A. TypeError

B. NameError

C. IndexError

D. KeyError

9. What does the else block in try-except-else execute when the try block completes successfully?

A. It executes only when an exception occurs

B. It executes after the try block

C. It always executes before try

D. It replaces finally

10. What is the output? try: numbers = [1, 2, 3] print(numbers[5]) except IndexError: print("Index problem") finally: print("Done")

A. Index problem then Done

B. 5 then Done

C. Index problem only

D. Done only

Tuesday, September 29, 2026

Python file-handling

### Top 20 Python `open()` Function Quiz 🐍

Test your Python file-handling knowledge with 20 multiple-choice questions covering file modes, reading, writing, appending, `with` statements, and file pointers.

### Part 1: Basic `open()` Quiz

Q1. What is the default mode of open()?

A. 'w'

B. 'r'

C. 'a'

D. 'x'

Correct answer: B

The default mode is 'r', which opens a file for reading.

Q2. What happens if you open a non-existing file using open('test.txt', 'r')?

A. Creates the file

B. Returns None

C. Raises FileNotFoundError

D. Creates an empty file

Correct answer: C

Read mode requires the file to exist.

Q3. Which mode opens a file for writing and truncates existing content?

A. 'a'

B. 'r'

C. 'w'

D. 'x'

Correct answer: C

'w' creates a file if needed and clears existing content.

Q4. Which mode adds content to the end of a file?

A. 'r'

B. 'a'

C. 'w'

D. 'x'

Correct answer: B

Append mode writes at the end without removing existing content.

Q5. What does mode 'x' do?

A. Reads a file

B. Appends content

C. Creates a new file exclusively

D. Deletes a file

Correct answer: C

'x' raises FileExistsError if the file already exists.

Q6. What does file.read() return?

A. A list of lines

B. A string containing file content

C. A file object

D. An integer

Correct answer: B

read() returns the file contents as a string in text mode.

Q7. What does readline() return?

A. All lines

B. One line, including newline if present

C. A list

D. The last line only

Correct answer: B

readline() reads one line at a time.

Q8. What does readlines() return?

A. A string

B. A tuple

C. A list of lines

D. A dictionary

Correct answer: C

readlines() returns a list where each element is a line.

Q9. Which method writes a string to a file?

A. read()

B. write()

C. readline()

D. append()

Correct answer: B

write() writes a string and does not automatically add a newline.

Q10. What is the purpose of the with statement when opening files?

A. Makes file read-only

B. Automatically closes the file

C. Deletes the file

D. Opens only binary files

Correct answer: B

The context manager closes the file automatically, even if an exception occurs.

### Part 2: Output-Based Quiz

Q11. What is printed if file.txt contains Hello World?

f = open('file.txt', 'r') print(f.read(5))

A. Hello

B. Hello World

C. World

D. Error

Correct answer: A

read(5) reads the first five characters.

Q12. What is printed if file.txt contains Python?

f = open('file.txt', 'r') print(f.read()) print(f.read())

A. Python twice

B. Python followed by a blank line

C. Error

D. None twice

Correct answer: B

The first read consumes the content. The second read returns an empty string.

Q13. What is the content after execution if file.txt initially contains ABC?

f = open('file.txt', 'w') f.write('XYZ') f.close()

A. ABCXYZ

B. ABC

C. XYZ

D. XYZABC

Correct answer: C

Write mode truncates the original file before writing XYZ.

Q14. If file.txt contains Hi, what is its content after this?

f = open('file.txt', 'a') f.write('!') f.close()

A. !

B. Hi!

C. Hi

D. !Hi

Correct answer: B

Append mode adds ! at the end.

Q15. What does this print?

with open('file.txt', 'w') as f: f.write('Python') print(f.closed)

A. False

B. True

C. Python

D. Error

Correct answer: B

The with block closes the file when execution exits the block.

Q16. What is printed?

f = open('file.txt', 'w') print(f.write('Hello')) f.close()

A. Hello

B. 5

C. None

D. True

Correct answer: B

write() returns the number of characters written. Hello has five characters.

Q17. What is printed?

f = open('file.txt', 'w') f.write('ABC\\nDEF') f.close() f = open('file.txt', 'r') print(f.readline().strip())

A. ABC

B. DEF

C. ABC DEF

D. ABC\\nDEF

Correct answer: A

readline() reads the first line; strip() removes the newline.

Q18. What does seek(0) do?

f.seek(0)

A. Closes the file

B. Moves the file pointer to the beginning

C. Deletes the first character

D. Moves to the end

Correct answer: B

seek(0) moves the file pointer to byte/character position zero in ordinary text-file usage.

Q19. What is printed?

f = open('file.txt', 'w+') f.write('ABC') f.seek(0) print(f.read()) f.close()

A. ABC

B. Empty string

C. 3

D. Error

Correct answer: A

w+ permits reading and writing. seek(0) moves the pointer back to the beginning.

Q20. What happens when opening an existing file with mode 'x'?

f = open('existing.txt', 'x')

A. File is overwritten

B. File is appended

C. FileExistsError is raised

D. File is read

Correct answer: C

Exclusive creation fails if the file already exists.

### Quick revision: Python file modes

| Mode | Purpose |

| ---- | ---------------------------------------- |

| r | Read; file must exist |

| w | Write; truncates existing content |

| a | Append; creates file if missing |

| x | Create exclusively; fails i

f file exists |

| r+ | Read and write; file must exist |

| w+ | Read and write; truncates existing file |

| a+ | Read and append; creates if missing |

Remember: Use `with open("file.txt", "r") as f:` for automatic file closing.

Classes, Objects, Inheritance, Method Overriding & More

### Top 20 Python OOP Quiz 🐍

### Classes, Objects, Inheritance, Method Overriding & More

Test your Python knowledge with these 20 output-based MCQs covering classes, constructors, inheritance, method overriding, `super()`, polymorphism, encapsulation, and abstraction.

### Section 1: Classes and Objects

Q1. What is the output?

```python

class Student:

def __init__(self, name):

self.name = name

s = Student("Ravi")

print(s.name)

```

A. Student

B. Ravi

C. name

D. Error

Answer: B — Ravi. `self.name` stores the instance attribute.

Q2. What is the output?

```python

class Demo:

x = 10

a = Demo()

b = Demo()

a.x = 20

print(b.x)

```

A. 10

B. 20

C. None

D. Error

Answer: A — 10. Assigning `a.x` creates an instance attribute; `b.x` still resolves to the class attribute.

Q3. What does `__init__()` do?

A. Destroys an object

B. Initializes an instance after it is created

C. Inherits a class

D. Defines a static method

Answer: B — It initializes the newly created instance.

Q4. What is the output?

```python

class A:

def show(self):

print("A")

obj = A()

obj.show()

```

A. A

B. show

C. None

D. Error

Answer: A — A.

Q5. What is the output?

```python

class Counter:

count = 0

def __init__(self):

Counter.count += 1

a = Counter()

b = Counter()

print(Counter.count)

```

A. 0

B. 1

C. 2

D. Error

Answer: C — 2. The class variable is incremented for each instance.

### Section 2: Inheritance and Method Overriding

Q6. What is the output?

```python

class Parent:

def show(self):

print("Parent")

class Child(Parent):

pass

Child().show()

```

A. Child

B. Parent

C. None

D. Error

Answer: B — Parent. Child inherits the method.

Q7. What is the output?

```python

class Parent:

def show(self):

print("Parent")

class Child(Parent):

def show(self):

print("Child")

Child().show()

```

A. Parent

B. Child

C. Parent Child

D. Error

Answer: B — Child. The child overrides the parent method.

Q8. What is the output?

```python

class A:

def show(self):

print("A")

class B(A):

def show(self):

super().show()

print("B")

B().show()

```

A. B then A

B. A then B

C. B only

D. Error

Answer: B — A, then B. `super()` calls the next implementation in the method resolution order.

Q9. What is the output?

```python

class A:

def __init__(self):

print("A")

class B(A):

def __init__(self):

print("B")

B()

```

A. A then B

B. B then A

C. B only

D. A only

Answer: C — B only. The child constructor does not call the parent constructor.

Q10. What is the output?

```python

class A:

def __init__(self):

self.x = 10

class B(A):

def __init__(self):

super().__init__()

self.y = 20

obj = B()

print(obj.x + obj.y)

```

A. 10

B. 20

C. 30

D. Error

Answer: C — 30. `super().__init__()` initializes `x`; the child initializes `y`.

Q11. Which inheritance type allows a class to inherit from two parent classes?

A. Single inheritance

B. Multiple inheritance

C. Multilevel inheritance

D. Hierarchical inheritance

Answer: B — Multiple inheritance.

Q12. What is the output?

```python

class A:

def show(self):

print("A")

class B:

def show(self):

print("B")

class C(A, B):

pass

C().show()

```

A. A

B. B

C. A B

D. Error

Answer: A — A. Python searches base classes according to the MRO; A comes first.

### Section 3: Polymorphism, Encapsulation & Abstraction

Q13. What is the output?

```python

class Animal:

def sound(self):

print("Animal")

class Dog(Animal):

def sound(self):

print("Bark")

def make_sound(obj):

obj.sound()

make_sound(Dog())

```

A. Animal

B. Bark

C. Both

D. Error

Answer: B — Bark. This demonstrates runtime polymorphism.

Q14. What is the output?

```python

class A:

def show(self):

return "Hello"

obj = A()

print(obj.show())

```

A. None

B. Hello

C. show

D. Error

Answer: B — Hello. The method returns a string.

Q15. What is the output?

```python

class Employee:

def __init__(self):

self.__salary = 50000

e = Employee()

print(e.__salary)

```

A. 50000

B. None

C. AttributeError

D. SyntaxError

Answer: C — AttributeError. Double-underscore attributes undergo name mangling.

Q16. What is the output?

```python

class A:

def __init__(self):

self.__x = 10

obj = A()

print(obj._A__x)

```

A. 10

B. None

C. AttributeError

D. SyntaxError

Answer: A — 10. Name mangling changes `__x` to `_A__x`; it is not strict privacy.

Q17. Which module provides support for abstract base classes?

A. os

B. abc

C. sys

D. math

Answer: B — `abc` (Abstract Base Classes).

Q18. What happens when you run this code?

```python

from abc import ABC, abstractmethod

class Shape(ABC):

@abstractmethod

def area(self):

pass

s = Shape()

```

A. Object created successfully

B. Returns None

C. TypeError

D. SyntaxError

Answer: C — TypeError. A class with unimplemented abstract methods cannot be instantiated.

Q19. What is the output?

```python

class A:

def greet(self):

print("Hello")

class B(A):

pass

class C(B):

pass

C().greet()

```

A. Hello

B. A

C. None

D. Error

Answer: A — Hello. This is multilevel inheritance: A → B → C.

Q20. What is the output?

```python

class A:

def show(self):

print("A")

class B(A):

def show(self):

print("B")

super().show()

class C(B):

def show(self):

print("C")

super().show()

C().show()

```

A. A B C

B. C B A

C. C A B

D. C only

Answer: B — C, B, A. Each `super()` call invokes the next method in the MRO.

### Quick Revision – Python OOP

| Concept | Key point |

| ------------- | ---------------------------------------------------------------------- |

| Class | Blueprint for creating objects |

| Object | Instance of a class |

| Inheritance | Reuse parent class functionality |

| Overriding | Child provides its own implementation of an inherited method |

| super() | Accesses the next implementation in the MRO |

| Polymorphism | Same interface, different behavior |

| Encapsulation | Bundling data and methods; name mangling helps avoid accidental access |

| Abstraction | Define required interfaces using abstract classes and methods |

Friday, September 18, 2026

Python Boolean Truthiness & Logical Expressions Quiz

1. What is the output of the following Python code?

x = [0]

print(bool(x))

A) True

B) False

C) 0

D) [0]

Answer: A) True

(A list containing elements, even 0, is non-empty and evaluates to True.)

2. What is the output of the following expression?

print([] or "Python")

A) []

B) False

C) "Python"

D) True

Answer: C) "Python"

(The or operator returns the first truthy operand, or the last operand if all are falsy.)

3. What does the following snippet print?

a = []

b = [1, 2]

print(a and b)

A) False

B) []

C) [1, 2]

D) None

Answer: B) []

(The and operator short-circuits on the first falsy value and returns the object itself, not a boolean.)

4. What is the evaluated output of this code?

x = [[]]

print(not x)

A) True

B) False

C) [[]]

D) Error

Answer: B) False

(x contains one element—an empty list—so x itself is non-empty and truthy. not x yields False.)

5. Which of the following expressions evaluates to True?

A) bool([])

B) bool("")

C) bool([False])

D) bool(0)

Answer: C) bool([False])

(A list with one element [False] has a length of 1, making it truthy.)

6. What does this code snippet print?

print(not [] == True)

A) True

B) False

C) None

D) SyntaxError

Answer: B) False

(Operator chaining applies here: not ([] == True). Since [] == True evaluates to False, the expression parses as not ([] == True) which produces False due to operator precedence where == binds tighter than not.)

7. What will be printed by the following expression?

print([1] and [] or [2])

A) [1]

B) []

C) [2]

D) True

Answer: C) [2]

([1] and [] evaluates to []. Then [] or [2] evaluates to [2].)

8. What is the output of the following condition?

items = []

result = "Non-empty" if items else "Empty"

print(result)

A) "Non-empty"

B) "Empty"

C) None

D) []

Answer: B) "Empty"

(An empty list evaluates to falsy in a ternary/conditional expression.)

9. What does the following comparison print?

print([] == False)

A) True

B) False

C) None

D) Error

Answer: B) False

(Falsiness does not mean equality. [] is a list, while False is a boolean; they are distinct objects with different types.)

10. What is the output of running this code?

x = []

print(not not x)

A) True

B) False

C) []

D) N

Answer: B) False

(not x evaluates to True, and the second not inverts it back to False.)

Thursday, September 17, 2026

Python Lambda Function Quiz

1. What is the output? f = lambda x: x * 2 print(f(5))

A. 25

B. 10

C. 7

D. 5

2. What is the output? add = lambda a, b: a + b print(add(3, 7))

A. 10

B. 4

C. 37

D. 21

3. What is the output? square = lambda x: x ** 2 print(square(4))

A. 16

B. 6

C. 8

D. 12

4. What is the output? nums = [1, 2, 3, 4] result = list(map(lambda x: x * 2, nums)) print(result)

A. [2, 3, 4, 5]

B. [1, 2, 3, 4]

C. [2, 4, 6, 8]

D. [1, 4, 9, 16]

5. What is the output? nums = [1, 2, 3, 4, 5] result = list(filter(lambda x: x % 2 == 0, nums)) print(result)

A. [2, 4]

B. [2, 3, 4]

C. [1, 2, 3, 4]

D. [1, 3, 5]

6. What is the output? nums = [3, 1, 2] result = sorted(nums, key=lambda x: x) print(result)

A. [3, 2, 1]

B. [2, 1, 3]

C. [1, 2, 3]

D. [3, 1, 2]

7. What is the output? f = lambda x: x + 10 print(f(2) * 3)

A. 36

B. 16

C. 26

D. 6

8. What is the output? multiply = lambda a, b: a * b print(multiply(4, 5))

A. 9

B. 45

C. 1

D. 20

9. What does a Python lambda expression return when its expression is evaluated?

A. Always None

B. Always a Boolean

C. The evaluated expression result

D. Always a string

10. What is the output? words = ["cat", "elephant", "dog"] result = sorted(words, key=lambda x: len(x)) print(result)

A. ['cat', 'dog', 'elephant']

B. ['cat', 'elephant', 'dog']

C. ['dog', 'cat', 'elephant']

D. ['elephant', 'cat', 'dog']

Wednesday, September 16, 2026

Python Lists, `append()`, Nested Lists & Self-Referencing Lists

### 🐍 Top 10 Python `append()` Quiz

Topic: Python Lists, `append()`, Nested Lists & Self-Referencing Lists

Test your Python knowledge with these output-based MCQs! 🚀

### Q1. What is the output?

A. 3

B. 4

C. 5

D. Error

### Q2. What is the output?

A. 2

B. 3

C. 4

D. Error

### Q3. What is the output?

A. \[1, 2, 3, 4\]

B. \[1, 2, \[3, 4\]\]

C. \[3, 4, 1, 2\]

D. \[1, 2, 4, 3\]

### Q4. What is the output?

A. 4

B. \[1, 2, 3, 4\]

C. None

D. True

### Q5. What is the output?

A. \[1, 2, 3, 4\]

B. \[\[1, 2\], \[3, 4\]\]

C. \[1, \[2, 3\], 4\]

D. Error

### Q6. What is the output?

A. 3

B. 4

C. 6

D. Error

### Q7. What is the output?

A. 2

B. 3

C. 4

D. 5

### Q8. What is the output?

A. 30

B. 40

C. 50

D. Error

### Q9. What is the output?

A. \[1, 2\]

B. \[3\]

C. \[1, 2, 3\]

D. Error

### Q10. What is the output?

A. True

B. False

C. None

D. Error

### 📌 Key Takeaways

| Method | Behavior |

| ------------------ | ------------------------- |

| append(x) | Adds one element |

| append([x, y]) | Adds a nested list |

| append(a) | Adds a self-reference |

| len(a) | Counts top-level elements |

| a.append(x) return | None |

Python List `insert()` Quiz

### 🐍 Top 10 Python List `insert()` Quiz

Test your Python knowledge with these 10 output-based multiple-choice questions.

### Q1. What is the output?

A. \[1, 2, 10, 3\]

B. \[1, 10, 2, 3\]

C. \[10, 1, 2, 3\]

D. \[1, 2, 3, 10\]

### Q2. What is the output?

A. \[5, 6, 7, 100\]

B. \[100, 5, 6, 7\]

C. \[5, 100, 6, 7\]

D. \[100, 7, 6, 5\]

### Q3. What is the output?

A. \[4, 1, 2, 3\]

B. \[1, 2, 4, 3\]

C. \[1, 2, 3, 4\]

D. Error

### Q4. What is the output?

A. \[99, 10, 20, 30\]

B. \[10, 20, 99, 30\]

C. \[10, 20, 30, 99\]

D. \[10, 99, 20, 30\]

### Q5. What is the output?

A. Error

B. \[5, 1, 2\]

C. \[1, 2, 5\]

D. \[1, 5, 2\]

### Q6. What is the output?

A. \[2, 8, 10, 4, 6\]

B. \[2, 8, 4, 10, 6\]

C. \[2, 4, 10, 8, 6\]

D. \[8, 2, 10, 4, 6\]

### Q7. What is the output?

A. \[1, 99, 2, 3\]

B. 99

C. None

D. True

### Q8. What is the output?

A. \[1, 2, 3, 9\]

B. \[9, 1, 2, 3\]

C. \[1, 9, 2, 3\]

D. Error

### Q9. What is the output?

A. \[1, 4, 5, 2, 3\]

B. \[1, \[4, 5\], 2, 3\]

C. \[4, 5, 1, 2, 3\]

D. Error

### Q10. What is the output?

A. \[10, 20, 15, 25, 30, 40\]

B. \[10, 20, 25, 15, 30, 40\]

C. \[10, 15, 20, 25, 30, 40\]

D. \[10, 20, 30, 15, 25, 40\]

### 📌 Key Takeaways

* `insert(index, value)` adds an element at a specific position.

* Existing elements shift to the right.

* `insert()` modifies the original list.

* `insert()` returns `None`.

* Large positive indexes append to the end.

* Negative indexes count from the end, with boundary clamping.

Share your score! How many did you get correct? 🐍

Tuesday, September 15, 2026

Python Lambda Quiz

1. What will be the output? x = 4 f = lambda x: x + 2 print(f(3) + x)

A. 9

B. 7

C. 12

D. 10

2. What will be the output? square = lambda x: x * x print(square(5))

A. 25

B. 20

C. 10

D. 15

3. What will be the output? add = lambda a, b: a + b print(add(4, 6))

A. 24

B. 10

C. 2

D. 46

4. What will be the output? f = lambda x: x * 2 print(f(3) + f(4))

A. 11

B. 14

C. 24

D. 12

5. What will be the output? f = lambda x: x - 1 print(f(10))

A. 10

B. 9

C. 1

D. 11

Monday, September 14, 2026

Python sorted() Quiz

1. What is the output? print(sorted([3, 1, 2]))

A. [3, 2, 1]

B. [1, 2, 3]

C. None

D. [2, 1, 3]

2. What is the output? print(sorted([3, 1, 2], reverse=True))

A. [2, 3, 1]

B. [3, 2, 1]

C. None

D. [1, 2, 3]

3. What is the output? words = ["banana", "fig", "apple"] print(sorted(words, key=len))

A. ['fig', 'apple', 'banana']

B. ['banana', 'apple', 'fig']

C. ['apple', 'banana', 'fig']

D. ['fig', 'banana', 'apple']

4. What is the output? nums = [10, 2, 30, 4] print(sorted(nums, key=lambda x: x))

A. [30, 10, 4, 2]

B. [4, 2, 10, 30]

C. [10, 2, 4, 30]

D. [2, 4, 10, 30]

5. What is the output? names = ["Bob", "alice", "Charlie"] print(sorted(names, key=str.lower))

A. ['Charlie', 'Bob', 'alice']

B. ['alice', 'Bob', 'Charlie']

C. ['alice', 'Charlie', 'Bob']

D. ['Bob', 'Charlie', 'alice']

______________________________

1. What is the output? nums = [7, 2, 9, 1] print(sorted(nums))

A. [7, 2, 9, 1]

B. [1, 2, 7, 9]

C. [2, 1, 7, 9]

D. [9, 7, 2, 1]

2. What is the output? nums = [4, 8, 1, 6] print(sorted(nums, reverse=True))

A. [6, 8, 4, 1]

B. [8, 6, 4, 1]

C. [4, 8, 1, 6]

D. [1, 4, 6, 8]

3. What is the output? words = ["pear", "apple", "banana"] print(sorted(words))

A. ['banana', 'pear', 'apple']

B. ['pear', 'banana', 'apple']

C. ['apple', 'pear', 'banana']

D. ['apple', 'banana', 'pear']

4. What is the output? words = ["cat", "elephant", "dog"] print(sorted(words, key=len))

A. ['cat', 'elephant', 'dog']

B. ['dog', 'cat', 'elephant']

C. ['elephant', 'cat', 'dog']

D. ['cat', 'dog', 'elephant']

5. What is the output? words = ["one", "three", "two"] print(sorted(words, key=len, reverse=True))

A. ['one', 'two', 'three']

B. ['three', 'one', 'two']

C. ['two', 'one', 'three']

D. ['three', 'two', 'one']

6. What is the output? items = [("B", 2), ("A", 3), ("C", 1)] print(sorted(items, key=lambda x: x[1]))

A. [('C', 1), ('B', 2), ('A', 3)]

B. [('A', 3), ('B', 2), ('C', 1)]

C. [('A', 3), ('C', 1), ('B', 2)]

D. [('B', 2), ('A', 3), ('C', 1)]

7. What is the output? students = [("John", 80), ("Amy", 95), ("Bob", 70)] print(sorted(students, key=lambda x: x[1], reverse=True))

A. [('John', 80), ('Amy', 95), ('Bob', 70)]

B. [('Amy', 95), ('John', 80), ('Bob', 70)]

C. [('Bob', 70), ('John', 80), ('Amy', 95)]

D. [('Amy', 95), ('Bob', 70), ('John', 80)]

8. What is the output? pairs = [(3, 1), (1, 5), (2, 2)] print(sorted(pairs))

A. [(1, 5), (3, 1), (2, 2)]

B. [(2, 2), (1, 5), (3, 1)]

C. [(1, 5), (2, 2), (3, 1)]

D. [(3, 1), (2, 2), (1, 5)]

9. What is the output? words = ["apple", "kiwi", "banana", "fig"] print(sorted(words, key=lambda x: (len(x), x)))

A. ['banana', 'apple', 'kiwi', 'fig']

B. ['fig', 'kiwi', 'apple', 'banana']

C. ['fig', 'apple', 'kiwi', 'banana']

D. ['kiwi', 'fig', 'apple', 'banana']

Python Exception Handling

Python Exception Handling: try, except, else & finally

1. What is the output? try: print(10 / 0) except ZeroDivisionError: print("Error")

A. 0

B. Nothing

C. Error

D. 10

2. What is the output? try: x = 10 except: print("Error") else: print("Success")

A. Error

B. 10

C. Success

D. Nothing

3. What is the output? try: print(5 / 0) except ZeroDivisionError: print("Caught") finally: print("Done")

A. Caught

B. Done

C. Error\nDone

D. Caught\nDone

4. What is the output? try: print("A") except: print("B") finally: print("C")

A. C\nA

B. A

C. A\nC

D. B\nC

5. Which block is designed to execute whether or not an exception occurs? try: # risky operation except Exception: # handle error else: # no error finally: # cleanup

A. except

B. try

C. finally

D. else

6. What is the output? try: int("abc") except ValueError: print("Invalid") else: print("Valid") finally: print("Finished")

A. Invalid

B. Invalid\nFinished

C. Valid\nFinished

D. Finished\nInvalid

7. What happens to the else block when the try block raises an exception that is handled by except?

A. It executes before except

B. It is skipped

C. It always executes

D. It executes after finally

8. What is the output? try: x = 10 print(x) except Exception: print("Error") finally: print("Cleanup")

A. Error\nCleanup

B. 10\nCleanup

C. Cleanup\n10

D. 10

9. What is the main purpose of the else block in Python exception handling?

A. Run code only when try fails

B. Run code only when try succeeds

C. Always clean up resources

D. Catch every exception

10. What is the output? try: print("Start") raise Exception("Oops") except Exception: print("Handled") finally: print("End")

A. Handled\nEnd

B. Start\nEnd

C. Start\nHandled

D. Start\nHandled\nEnd

Python find() Quiz

1. What is the output? s = "Python Programming" print(s.find("Pro"))

A. 6

B. 8

C. -1

D. 7

2. What is the output? s = "banana" print(s.find("na"))

A. 3

B. 2

C. 1

D. 4

3. What is the output? print("hello world".find("world"))

A. 6

B. 5

C. 7

D. -1

4. What is the output? print("Python".find("Java"))

A. None

B. -1

C. 1

D. 0

5. What is the output? s = "programming" print(s.find("g"))

A. 10

B. 3

C. 5

D. 7

6. What is the output? s = "banana" print(s.find("a", 2))

A. 5

B. 3

C. -1

D. 1

7. What is the output? s = "banana" print(s.find("a", 4))

A. -1

B. 3

C. 5

D. 4

8. What is the output? print("mississippi".find("iss"))

A. 0

B. 2

C. 4

D. 1

9. What is the output? print("PYTHON".find("python"))

A. 0

B. 6

C. 1

D. -1

10. What is the output? print("hello".find(""))

A. -1

B. None

C. 0

D. 1

11. What is the output? s = "abcabc" print(s.find("abc", 1))

A. 1

B. 3

C. -1

D. 0

12. What is the output? s = "abcdef" print(s.find("cd", 0, 4))

A. -1

B. 1

C. 2

D. 3

13. What is the output? s = "abcdef" print(s.find("ef", 0, 5))

A. 4

B. 3

C. -1

D. 5

14. What is the output? print("banana".find("ana"))

A. 2

B. 3

C. 0

D. 1

15. What is the output? s = "Python Python" print(s.find("Python", 1))

A. 0

B. -1

C. 7

D. 6

16. What is the output? print("developer".find("lop"))

A. -1

B. 4

C. 2

D. 3

17. What is the output? s = "abracadabra" print(s.find("abra", 1))

A. 7

B. 3

C. -1

D. 0

18. What is the output? s = "cat cat cat" print(s.find("cat", 4))

A. 4

B. 5

C. 0

D. 8

19. What is the output? s = "python programming" print(s.find("python"))

A. 1

B. -1

C. 0

D. 7

20. What is the output? s = "hello hello" print(s.find("hello", 1))

A. 5

B. 0

C. -1

D. 6

Python Control Flow Quiz

1. What is the output? x = 10 if x > 5: print("A") else: print("B")

A. B

B. No output

C. Error

D. A

2. What is the output? x = 15 if x < 10: print("Low") elif x < 20: print("Medium") else: print("High")

A. Low

B. B

C. Medium

D. High

3. What is the output? for i in range(3): print(i) else: print("Done")

A. 0 1 2

B. Done 0 1 2

C. 0 1 Done

D. 0 1 2 Done

4. What is the output? for i in range(5): if i == 2: break print(i)

A. 0 1 2

B. 0 1 2 3 4

C. 0 1

D. 2 3 4

5. What is the output? for i in range(5): if i == 2: continue print(i)

A. 0 1

B. 2 3 4

C. 0 1 2 3 4

D. 0 1 3 4

6. What is the output? for i in range(3): if i == 1: break else: print("Done")

A. 0 1

B. Done

C. 0 Done

D. 0

7. What is the output? x = 0 if x: print("True") else: print("False")

A. True

B. Error

C. 0

D. False

8. What is the output? for i in range(4): if i % 2 == 0: continue print(i)

A. 2 3

B. 0 2

C. 1 3

D. 0 1 2 3

9. What is the output? for i in range(3): print(i) if i == 1: break else: print("Done")

A. 1

B. 0 1

C. 0

D. 0 1 Done

10. What is the output? x = 20 if x < 10: print("A") elif x < 20: print("B") elif x == 20: print("C") else: print("D")

A. C

B. D

C. A

D. B

Python Lists: Mutability Quiz

1. What is the output of this Python code? x = [1, 2, 3] x[0] = 10 print(x)

A. [10, 2, 3]

B. [1, 2, 3]

C. [10, 1, 2, 3]

D. TypeError

2. What is the output of this Python code? items = [1, 2] items.append(3) print(items)

A. [1, 2]

B. [1, 2, 3]

C. [3, 1, 2]

D. [1, 2, [3]]

3. What is the output of this Python code? a = [10, 20] b = a b[1] = 99 print(a)

A. TypeError

B. [99, 20]

C. [10, 99]

D. [10, 20]

4. Which statement correctly describes Python lists?

A. Lists cannot contain duplicate values.

B. Lists are mutable sequences.

C. Lists can contain only numbers.

D. Lists are immutable sequences.

5. What is the output of this Python code? numbers = [1, 2, 3] numbers[1] = 20 print(numbers)

A. [1, 20, 3]

B. [1, 2, 20, 3]

C. [1, 2, 3]

D. [20, 2, 3]

Python split() Method Quiz

Python:

Quiz 1: Custom Delimiters What will be the output of the following code?

data = "apple,banana,cherry"
print(data.split(","))

A) ["apple", "banana", "cherry"]
B) "apple" "banana" "cherry"
C) ["apple,banana,cherry"]
D) Error

Quiz 2: Handling Extra Whitespace What will be the output of the following code?

text = "Hello   World  Python"
print(text.split())

A) ['Hello', '', '', 'World', '', 'Python']
B) ['Hello', 'World', 'Python']
C) ['Hello World Python']
D) Error

Quiz 3: The Opposite of Split What will be the output of the following code?

words = ["Python", "is", "fun"]
print(" ".join(words))

A) ["Python is fun"]
B) Python, is, fun
C) Python is fun
D) ['Python', 'is', 'fun']

-------------

1. What is the output of print("Python is easy".split())?

A. Python is easy

B. ['Python', 'is', 'easy']

C. ['Python', 'is easy']

D. ['Python is easy']

2. What is the output of print("a,b,c".split(","))?

A. ['a', ',b', ',c']

B. ['a', 'b', 'c']

C. ['a', 'b,c']

D. ['a,b,c']

3. What is the output of print("one two three".split(" ", 1))?

A. ['one two three']

B. ['one two', 'three']

C. ['one', 'two', 'three']

D. ['one', 'two three']

4. What is the output of print("hello".split("l"))?

A. ['he', '', 'o']

B. ['he', 'llo']

C. ['hel', 'o']

D. ['hello']

5. What is the output of print(" Python quiz ".split())?

A. ['Python', 'quiz']

B. [' Python', 'quiz ']

C. ['Python', '', 'quiz']

D. ['', 'Python', '', '', 'quiz', '']

Sunday, September 13, 2026

Python Dictionary Methods Quiz

1. What is the output? d = {"a": 1, "b": 2} print(d.get("a"))

A. 2

B. KeyError

C. None

D. 1

2. What is the output? d = {"x": 10, "y": 20} print(list(d.keys()))

A. [10, 20]

B. [('x', 10), ('y', 20)]

C. ['x', 'y']

D. ['x', 10, 'y', 20]

3. What is the output? d = {"a": 5, "b": 7} print(list(d.values()))

A. ['a', 'b']

B. [5, 'a', 7, 'b']

C. [('a', 5), ('b', 7)]

D. [5, 7]

4. What is the output? d = {"a": 1, "b": 2} print(list(d.items()))

A. [('a', 1), ('b', 2)]

B. [1, 2]

C. ['a', 'b']

D. {'a': 1, 'b': 2}

5. What is the output? d = {"a": 1} d.update({"b": 2}) print(d)

A. {'a': 2, 'b': 1}

B. {'b': 2}

C. {'a': 1}

D. {'a': 1, 'b': 2}

6. What is the output? d = {"a": 10, "b": 20} x = d.pop("a") print(x, d)

A. 20 {'a': 10}

B. 10 {'a': 10}

C. 10 {'b': 20}

D. a {'b': 20}

7. What is the output? d = {"a": 1, "b": 2} x = d.popitem() print(x, d)

A. ('b', 2) {'a': 1, 'b': 2}

B. 2 {'a': 1, 'b': 2}

C. ('a', 1) {'b': 2}

D. ('b', 2) {'a': 1}

8. What is the output? d = {"a": 1} x = d.setdefault("b", 2) print(x, d)

A. 1 {'a': 1, 'b': 2}

B. 2 {'a': 1}

C. None {'a': 1, 'b': 2}

D. 2 {'a': 1, 'b': 2}

9. What is the output? d = {"a": 1} x = d.setdefault("a", 99) print(x, d)

A. 99 {'a': 1}

B. None {'a': 1}

C. 99 {'a': 99}

D. 1 {'a': 1}

10. What is the output? d = {"a": 1, "b": 2} d.clear() print(d)

A. {'a': 1}

B. {}

C. None

D. {'b': 2}

11. What is the output? d = {"a": 1} c = d.copy() c["b"] = 2 print(d)

A. {'a': 1}

B. {'b': 2}

C. {'a': 1, 'b': 2}

D. {}

12. What is the output? d = dict.fromkeys(["a", "b"], 0) print(d)

A. {'a': 1, 'b': 1}

B. {0: 'a', 0: 'b'}

C. {'a': None, 'b': None}

D. {'a': 0, 'b': 0}

13. What is the output? d = {"a": 1} print(d.get("b", 99))

A. KeyError

B. 99

C. None

D. 1

14. What is the output? d = {"a": 1, "b": 2} d.update({"a": 10}) print(d)

A. {'a': 10, 'b': 2}

B. {'a': 10}

C. {'a': 1, 'b': 10}

D. {'a': 1, 'b': 2}

15. What is the output? d = {"a": 1, "b": 2} print("a" in d)

A. True

B. False

C. None

D. 1

16. What is the output? d = {"a": 1, "b": 2} print(d.get("c") is None)

A. True

B. 0

C. KeyError

D. False

17. What is the output? d = {"a": 1} d.update(b=2) print(d)

A. {'a': 1, 'b': None}

B. {'a': 2, 'b': 1}

C. {'a': 1, 'b': 2}

D. {'b': 2}

18. What is the output? d = {"a": 1, "b": 2} x = d.pop("b") print(x)

A. None

B. 1

C. 2

D. b

19. What is the output? d = {"x": 1, "y": 2} print(len(d.keys()))

A. 2

B. 1

C. 0

D. 3

20. What is the output? d = {"a": 1} d.setdefault("b") print(d)

A. {'a': 1, 'b': 0}

B. {'b': None}

C. {'a': 1}

D. {'a': 1, 'b': None}

Python List Method Quiz

1. What is the output? x = [1, 2] x.append(3) print(x)

A. [3, 1, 2]

B. [1, 3, 2]

C. [1, 2]

D. [1, 2, 3]

2. What is the output? x = [1, 2] x.extend([3, 4]) print(x)

A. [1, 2]

B. [3, 4, 1, 2]

C. [1, 2, [3, 4]]

D. [1, 2, 3, 4]

3. What is the output? x = [10, 20, 30] x.insert(1, 99) print(x)

A. [99, 10, 20, 30]

B. [10, 20, 30, 99]

C. [10, 20, 99, 30]

D. [10, 99, 20, 30]

4. What is the output? x = [1, 2, 2, 3] x.remove(2) print(x)

A. [1, 3]

B. [1, 2, 2]

C. [1, 2, 3]

D. [2, 2, 3]

5. What is the output? x = [10, 20, 30] y = x.pop() print(y, x)

A. 30 [10, 20, 30]

B. 10 [20, 30]

C. 30 [10, 20]

D. 20 [10, 30]

6. What is the output? x = [1, 2, 3] x.pop(0) print(x)

A. [2, 3]

B. [1, 3]

C. [1, 2, 3]

D. [1, 2]

7. What is the output? x = [1, 2, 3] x.clear() print(x)

A. [3]

B. None

C. [1]

D. []

8. What is the output? x = [10, 20, 30, 20] print(x.index(20))

A. 0

B. 3

C. 1

D. 2

9. What is the output? x = [1, 2, 2, 3, 2] print(x.count(2))

A. 1

B. 2

C. 3

D. 4

10. What is the output? x = [3, 1, 2] x.sort() print(x)

A. [3, 2, 1]

B. [2, 1, 3]

C. [3, 1, 2]

D. [1, 2, 3]

11. What is the output? x = [1, 2, 3] x.reverse() print(x)

A. [1, 3, 2]

B. [1, 2, 3]

C. [3, 2, 1]

D. [2, 3, 1]

12. What is the output? x = [1, 2] y = x.copy() y.append(3) print(x)

A. [1, 2, 3]

B. [1, 2]

C. []

D. [3, 1, 2]

13. What is the output? x = [1, 2] x += [3, 4] print(x)

A. [1, 2, [3, 4]]

B. [1, 2]

C. [3, 4, 1, 2]

D. [1, 2, 3, 4]

14. What is the output? x = [1, 2] x.append([3, 4]) print(x)

A. [[3, 4], 1, 2]

B. [1, 2, [3, 4]]

C. [1, 2, 3, 4]

D. [1, 2]

15. What is the output? x = [5, 10, 15] print(x.pop(1))

A. 1

B. 5

C. 10

D. 15

16. What is the output? x = [4, 1, 3] y = x.sort() print(y)

A. 3

B. [1, 3, 4]

C. [4, 1, 3]

D. None

17. What is the output? x = [1, 2, 3] y = x.reverse() print(y)

A. 3

B. [3, 2, 1]

C. None

D. [1, 2, 3]

18. What is the output? x = [1, 2, 3] x.insert(0, 9) print(x)

A. [9, 1, 2, 3]

B. [1, 2, 9, 3]

C. [1, 2, 3, 9]

D. [1, 9, 2, 3]

19. What is the output? x = [1, 2, 3] x.remove(2) print(x)

A. [1, 2]

B. [2, 3]

C. [1, 2, 3]

D. [1, 3]

20. What is the output? x = [3, 1, 2] x.sort(reverse=True) print(x)

A. [3, 1, 2]

B. [2, 3, 1]

C. [3, 2, 1]

D. [1, 2, 3]

Saturday, September 12, 2026

Python String Format Quizzes

1. What is the output? print("python".upper())

A. PYTHON

B. python

C. Python

D. pYTHON

2. What is the output? print("PYTHON".lower())

A. pYthon

B. python

C. PYTHON

D. Python

3. What is the output? print("hello world".title())

A. Hello world

B. HELLO WORLD

C. hello world

D. Hello World

4. What is the output? print("hello".capitalize())

A. hello

B. HELLO

C. hELLO

D. Hello

5. What is the output? print("PyThOn".swapcase())

A. python

B. PyThOn

C. PYTHON

D. pYtHoN

6. What is the output? print("banana".find("na"))

A. 2

B. 4

C. 1

D. 3

7. What is the output? print("banana".count("a"))

A. 3

B. 4

C. 1

D. 2

8. What is the output? print("python".startswith("py"))

A. False

B. 0

C. None

D. True

9. What is the output? print("report.pdf".endswith(".pdf"))

A. None

B. False

C. True

D. pdf

10. What is the output? print("hello world".replace("world", "Python"))

A. helloPython

B. hello Python

C. hello world

D. Python world

11. What is the output? print("a,b,c".split(","))

A. ('a', 'b', 'c')

B. a b c

C. ['a', 'b', 'c']

D. ['a,b,c']

12. What is the output? print("-".join(["2026", "09", "12"]))

A. 2026/09/12

B. 20260912

C. 2026-09-12

D. ['2026-09-12']

13. What is the output? print("Python123".isalnum())

A. True

B. False

C. Python

D. 123

14. What is the output? print("12345".isdigit())

A. True

B. 5

C. 12345

D. False

15. What is the output? print("abc".center(7, "-"))

A. abc----

B. abc

C. ---abc-

D. --abc--

16. What is the output? print("42".zfill(5))

A. 00042

B. 42000

C. 0042

D. 42.000

17. What is the output? print("abc123".isalpha())

A. False

B. abc

C. 123

D. True

18. What is the output? print("Hello".find("x"))

A. -1

B. None

C. 0

D. 1

19. What is the output? print("hello\tworld".expandtabs(4))

A. hello\tworld

B. helloworld

C. hello world

D. hello world

Friday, September 11, 2026

Python Slicing

Python Slicing:

1. What is the output? s = "Python" print(s[0:3])

A. 'Pyt'

B. 'Pyth'

C. 'Python'

D. 'yth'

2. What is the output? s = "Python" print(s[2:5])

A. 'yth'

B. 'hon'

C. 'thon'

D. 'tho'

3. What is the output? nums = [10, 20, 30, 40, 50] print(nums[-3:])

A. [40, 50]

B. [30, 40]

C. [20, 30, 40]

D. [30, 40, 50]

4. What is the output? s = "abcdef" print(s[::2])

A. 'ace'

B. 'fed'

C. 'abcd'

D. 'bdf'

5. What is the output? s = "Python" print(s[::-1])

A. 'nothP'

B. 'Python'

C. 'Pnohty'

D. 'nohtyP'

6. What is the output? nums = [0, 1, 2, 3, 4, 5] print(nums[1:5:2])

A. [0, 2, 4]

B. [2, 4]

C. [1, 3]

D. [1, 3, 5]

7. What is the output? s = "Python" print(s[:4])

A. 'ytho'

B. 'Pytho'

C. 'Python'

D. 'Pyth'

8. What is the output? s = "Python" print(s[2:])

A. 'tho'

B. 'Python'

C. 'thon'

D. 'ython'

9. What is the output? s = "abcdef" print(s[1:6:2])

A. 'bcdef'

B. 'ace'

C. 'bde'

D. 'bdf'

10. What is the output? s = "abcdef" print(s[-1])

A. 'f'

B. 'e'

C. 'd'

D. 'a'

11. What is the output? s = "Python" print(s[-4:-1])

A. 'yth'

B. 'hon'

C. 'tho'

D. 'ytho'

12. What is the output? nums = [1, 2, 3, 4, 5, 6] print(nums[::3])

A. [1, 4]

B. [2, 5]

C. [1, 4, 6]

D. [1, 3, 5]

13. What is the output? s = "abcdef" print(s[5:1:-1])

A. 'fedc'

B. 'edcb'

C. 'fed'

D. 'fecd'

14. What is the output? s = "abcdef" print(s[::-2])

A. 'fdb'

B. 'bdf'

C. 'eca'

D. 'fed'

15. What is the output? s = "Python" print(s[1:5:3])

A. 'yth'

B. 'yt'

C. 'to'

D. 'yo'

16. What is the output? s = "Python" print(s[::])

A. 'ython'

B. 'Pyth'

C. 'Python'

D. 'nohtyP'

17. What is the output? nums = [10, 20, 30, 40, 50] print(nums[1:-1])

A. [30, 40]

B. [20, 30, 40]

C. [20, 30, 40, 50]

D. [10, 20, 30, 40]

18. What is the output? s = "abcdef" print(s[4:1:-1])

A. 'fed'

B. 'cde'

C. 'edc'

D. 'edcb'

19. What is the output? s = "abcdefgh" print(s[2:7:2])

A. 'bdf'

B. 'ceg'

C. 'cdefg'

D. 'ce'

20. What is the output? s = "Python" print(s[-5:-2])

A. 'tho'

B. 'yth'

C. 'Pyt'

D. 'ytho'