41. What is the output of print([1, 2, 3][::-1])?
- a) [3, 2, 1]
- b) [1, 2, 3]
- c) [3]
- d) Error
Answer: A -
[::-1] reverses the list (step value of -1).
42. Which method returns the number of occurrences of an element in a list?
- a) count()
- b) occurrences()
- c) len()
- d) find()
Answer: A -
my_list.count(item) returns the count.
43. What does the any() function do?
- a) Returns True if any element is truthy
- b) Checks if all elements are True
- c) Counts truthy elements
- d) Applies OR operation
Answer: A -
any([False, True, False]) returns True.
44. Which module is used for working with JSON data?
- a) json
- b) simplejson
- c) pickle
- d) yaml
Answer: A - Python's built-in
json module handles JSON serialization/deserialization.
45. What is the output of print('Python'.center(10, '*'))?
- a) **Python**
- b) ***Python**
- c) **Python***
- d) Python****
Answer: A - Centers the string in 10 chars, padding with asterisks.
46. Which method removes and returns the last element of a list?
- a) pop()
- b) remove()
- c) delete()
- d) cut()
Answer: A -
my_list.pop() removes and returns the last item.
47. What is the output of print(0.1 + 0.2 == 0.3)?
- a) False
- b) True
- c) Error
- d) None
Answer: A - Due to floating-point precision,
0.1 + 0.2 equals 0.30000000000000004.
48. Which function returns a list of tuples containing index and value?
- a) enumerate()
- b) items()
- c) iter()
- d) listify()
Answer: A -
enumerate(['a','b']) yields (0,'a'), (1,'b').
49. What does __str__ method do?
- a) Defines informal string representation
- b) Initializes object
- c) Handles string conversion
- d) Both A and C
Answer: A -
__str__ is called by str() and print().
50. Which module is used for command-line argument parsing?
- a) argparse
- b) sys
- c) getopt
- d) All of the above
Answer: D - All can parse arguments, but
argparse is the modern recommended approach.
51. What is the output of print('Python'.isidentifier())?
- a) True
- b) False
- c) None
- d) Error
Answer: A - Checks if string is a valid Python identifier (variable name).
52. Which method returns a shallow copy of a dictionary?
- a) copy()
- b) clone()
- c) dict()
- d) All of the above
Answer: A -
my_dict.copy() creates a new dictionary with the same key-value pairs.
53. What is the output of print('Hello'.partition('l'))?
- a) ('He', 'l', 'lo')
- b) ('Hel', 'l', 'o')
- c) ('H', 'e', 'llo')
- d) ('He', 'll', 'o')
Answer: A - Splits at first occurrence into 3 parts: (before, separator, after).
54. Which function returns the largest item in an iterable?
- a) max()
- b) largest()
- c) maximum()
- d) greatest()
Answer: A -
max([3,1,4]) returns 4.
55. What is the output of print('Python'.endswith('on'))?
- a) True
- b) False
- c) None
- d) Error
Answer: A - Checks if string ends with the specified suffix.
56. Which module is used for working with operating system interfaces?
- a) os
- b) sys
- c) io
- d) path
Answer: A - The
os module provides OS-dependent functionality.
57. What is the output of print('Python'.swapcase())?
- a) pYTHON
- b) PYTHON
- c) python
- d) Python
Answer: A - Swaps uppercase to lowercase and vice versa.
58. Which method removes whitespace from both ends of a string?
- a) strip()
- b) trim()
- c) clean()
- d) remove()
Answer: A -
' hello '.strip() returns 'hello'.
59. What is the output of print('Python'.index('th'))?
- a) 2
- b) 3
- c) -1
- d) Error
Answer: A - Similar to
find() but raises ValueError if not found.
60. Which function returns a sequence of numbers starting from 0?
- a) range()
- b) sequence()
- c) numbers()
- d) list()
Answer: A -
range(5) generates numbers from 0 to 4.