Python MCQ Questions Answers

1. What is a correct term for the following piece of Python syntax: 3 + 4

2. What would be printed? x = [[1, 2], [3, 4], [5, 6]] x = [x for x in x for x in x] print x

3. From which module can a user import classes and methods to work with regular expressions?

4. What is the exponentiation (power) operator?

5. What are wxPython, pyQT, and pyGTK?

6. Difference between using single quotes and double quotes in Python strings?

7. What will typing the following at the Python interpreter produce? [3]*3

8. Which of these values equates to True?

9. Functions are first-class objects in Python.

10. It is possible to create a while loop that will never stop?

11. Python variables are references to objects.

12. Python files typically have which extension?

13. What is the index of the first item in a tuple or list?

14. What is the purpose of an 'if' statement?

15. If you want a function you define to return 'a', what should be put on the last line of the function (correctly indented)?

16. What will be printed as the result of: animals = ['bear', 'tiger', 'penguin', 'zebra'] print animals[2] ?

17. What character is used to denote the beginning of a comment?

18. How does one print the string 'fred' on a line by itself in Python 2.x?

19. Which Python implementation is best for testing Java code?

20. Python holds the current working directory in memory.

21. True or False. in python you can run linux command

22. What keyword is needed to use an external module?

23. What does the sys module include?

24. What is the maximum recursion limit in Python?

25. What will be the value of a variable x after executing the expression x = y = 1?

26. Which data structure supports the 'in' operator: list, dictionary, set ?

27. When opening the Python shell, the prompt you see is

28. What kind of type system does Python have?

29. Is it possible to call a function from within another function?

30. What data type is the following: [1, 2, 3] ?

31. What does the print statement do?

32. What function do you use to determine the size of a tuple, a list, or a string?

33. How are comments denoted in Python?

34. What is a string delimited by?

35. What does the expression string1 + string2 do?

36. Which of these will result in an error?

37. What is a variable?

38. What operator checks the inequality of two values?

39. How are non-anonymous Python functions declared?

40. Which Internet protocols is supported by Python libraries: HTTP, FTP, SMTP, POP3, IMAP4, NNTP, Telnet?

41. When defining a class, what controls which parameters that may be passed when the class is instantiated?

42. What is the del statement used for?

43. The statement 'a,b = b,a' is a valid way to successfuly switch the values of the variables a and b in Python.

44. How would you declare a list x in Python with predefined values of 1, 2 and 3 ?

45. Which is NOT a valid part of an 'if' block?

46. How does one pause the execution of a program for 5 seconds?

47. What is the value of the variable a after the following statement: a=(1,2,3); a=a[2];

48. Which of these lines properly checks the length of a variable named 'l'?

49. If i and j are numbers, which statement evaluates to the remainder of i divided by j?

50. How do you print from 0 to 10 in python?

51. The range(n) function returns values from...

52. there is a code example: x = {'quizful': []} How can you add an element 'python test' in list 'quizful'?

53. PEP8 style guidelines include:

54. How can the elements in a list be reversed?

55. Given the list 'li = ['a', 'Sir Robin', 'Sir Gawaine', 'Sir Not Appearing in this film', 'cb', 'rabbits']', what does the following list comprehension return '[item for item in li if len(item) > 2]'?

56. What function is used to convert integer numbers to floats?

57. What is a fundamental difference between a list and a tuple?

58. What does a function definition header end with?

59. Assume dictionary mydict = {'foo': 'Hello', 'bar': 'World!'} Which of the below would change the value of foo to 'Goodbye' ?

60. Name of a feature invoked by the following: 'This is a string'[3:9]

61. Does the elif statement require a logical expression?

62. What is the type of the expression [' ']?

63. According to PEP8 python programs should generally be indented with:

64. What will be result of 3/2 in Python 2.x?

65. Is it possible to catch AssertionError exceptions?

66. What is a string in Python?

67. What is the statement that can be used in Python if a statement is required syntactically but the program requires no action?

68. you can create Android programs with Python.

69. What is the main difference between a tuple and a list?

70. What will happen if you try to add an integer to a long number?

71. Which of these lines will return 125?

72. What will typing the following at the Python interpreter produce? >>> url = 'http://docs.python.org' >>> url[-4:]

73. you can't create async program in python

74. If variables a and b are initialized using an assignment (a, b) = (4, 6), what value will be stored in a variable c by using a statement c = eval("a*b")?

75. What does the pass statement do?

76. What is used to read the next line in a file up to the '\n'?

77. What will typing the following at the Python interpreter produce? sequence = ['A','B','C','D','E','F'] ; sequence[-6]

78. Given the following assignment: s = ('xxx', 'abcxxxabc', 'xyx', 'abc', 'x.x', 'axa', 'axxxxa', 'axxya'), what is the result of the expression filter ((lambda s: re.search(r'xxx', s)), s)?

79. Assume myList = [1, 2, 3, 4, 5] and myVar = 3 How would you check if myVar is contained in myList?

80. By convention, where are internal variables set in a Python class?

81. Where does 'pip install' retrieve modules from?

82. A decorator in python ________

83. How is a default value to a function's parameter provided?

84. How would you assign the last element of a list to the variable 'x' without modifying the list?

85. Which keywords can be used to define a function?

86. How can each line of an already-opened text file be printed?

87. Which is not a valid data type in Python?

88. Why might a Python module have the following code at the end: if __name__ == '__main__'?

89. Which of these two operations can be applied to a string: +, * ?

90. How can you open a binary file named dino?

91. If you want to enter accented characters, what is put in front of the string the character?

92. Is it possible to swap values of variables a and b by using the expression 'a, b = b, a' ?

93. What does the expression (lambda x: x + 3)(1) return?

94. What is a package?

95. Which example would return 'Python Supremacy'?

96. What syntax do you use when you create a subclass of an existing class?

97. What is the correct form for the first line of the switch operator?

98. The 'distutils' module provides

99. What would be the result of: print not (True or False) ?

100. What is the result of string.lower('RR')?