150 Practice Problems & Solutions

Exercises

1. Write a Python program to print the following string in a specific format (see the output). Go to the editor Sample String : "Twinkle, twinkle, little star, How I wonder what you are! Up above the world so high, Like a diamond in the sky. Twinkle, twinkle, little star, How I wonder what you are" Output :

Twinkle, twinkle, little star,    How I wonder what you are!         Up above the world so high,                   Like a diamond in the sky. Twinkle, twinkle, little star,     How I wonder what you are

​Click me to see the sample solution​

2. Write a Python program to get the Python version you are using. Go to the editor Click me to see the sample solution​

3. Write a Python program to display the current date and time. Sample Output : Current date and time : 2014-07-05 14:34:14 Click me to see the sample solution​

4. Write a Python program which accepts the radius of a circle from the user and compute the area. Go to the editor Sample Output : r = 1.1 Area = 3.8013271108436504 Click me to see the sample solution​

5. Write a Python program which accepts the user's first and last name and print them in reverse order with a space between them. Go to the editor Click me to see the sample solution​

6. Write a Python program which accepts a sequence of comma-separated numbers from user and generate a list and a tuple with those numbers. Go to the editor Sample data : 3, 5, 7, 23 Output : List : ['3', ' 5', ' 7', ' 23'] Tuple : ('3', ' 5', ' 7', ' 23') Click me to see the sample solution​

7. Write a Python program to accept a filename from the user and print the extension of that. Go to the editor Sample filename : abc.java Output : java Click me to see the sample solution​

8. Write a Python program to display the first and last colors from the following list. Go to the editor color_list = ["Red","Green","White" ,"Black"] Click me to see the sample solution​

9. Write a Python program to display the examination schedule. (extract the date from exam_st_date). Go to the editor exam_st_date = (11, 12, 2014) Sample Output : The examination will start from : 11 / 12 / 2014 Click me to see the sample solution​

10. Write a Python program that accepts an integer (n) and computes the value of n+nn+nnn. Go to the editor Sample value of n is 5 Expected Result : 615 Click me to see the sample solution​

11. Write a Python program to print the documents (syntax, description etc.) of Python built-in function(s). Sample function : abs() Expected Result : abs(number) -> number Return the absolute value of the argument. Click me to see the sample solution​

12. Write a Python program to print the calendar of a given month and year. Note : Use 'calendar' module. Click me to see the sample solution​

13. Write a Python program to print the following 'here document'. Go to the editor Sample string : a string that you "don't" have to escape This is a ....... multi-line heredoc string --------> example Click me to see the sample solution​

14. Write a Python program to calculate number of days between two dates. Sample dates : (2014, 7, 2), (2014, 7, 11) Expected output : 9 days Click me to see the sample solution​

15. Write a Python program to get the volume of a sphere with radius 6. Click me to see the sample solution​

16. Write a Python program to get the difference between a given number and 17, if the number is greater than 17 return double the absolute difference. Go to the editor Click me to see the sample solution​

17. Write a Python program to test whether a number is within 100 of 1000 or 2000. Go to the editor Click me to see the sample solution​

18. Write a Python program to calculate the sum of three given numbers, if the values are equal then return three times of their sum. Go to the editor Click me to see the sample solution​

19. Write a Python program to get a new string from a given string where "Is" has been added to the front. If the given string already begins with "Is" then return the string unchanged. Go to the editor Click me to see the sample solution​

20. Write a Python program to get a string which is n (non-negative integer) copies of a given string. Go to the editor Click me to see the sample solution​

21. Write a Python program to find whether a given number (accept from the user) is even or odd, print out an appropriate message to the user. Go to the editor Click me to see the sample solution​

22. Write a Python program to count the number 4 in a given list. Go to the editor Click me to see the sample solution​

23. Write a Python program to get the n (non-negative integer) copies of the first 2 characters of a given string. Return the n copies of the whole string if the length is less than 2. Go to the editor Click me to see the sample solution​

24. Write a Python program to test whether a passed letter is a vowel or not. Go to the editor Click me to see the sample solution​

25. Write a Python program to check whether a specified value is contained in a group of values. Go to the editor Test Data : 3 -> [1, 5, 8, 3] : True -1 -> [1, 5, 8, 3] : False

​Click me to see the sample solution​

26. Write a Python program to create a histogram from a given list of integers. Go to the editor Click me to see the sample solution​

27. Write a Python program to concatenate all elements in a list into a string and return it. Go to the editor Click me to see the sample solution​

28. Write a Python program to print all even numbers from a given numbers list in the same order and stop the printing if any numbers that come after 237 in the sequence. Go to the editor Sample numbers list :

numbers = [        386, 462, 47, 418, 907, 344, 236, 375, 823, 566, 597, 978, 328, 615, 953, 345,     399, 162, 758, 219, 918, 237, 412, 566, 826, 248, 866, 950, 626, 949, 687, 217,     815, 67, 104, 58, 512, 24, 892, 894, 767, 553, 81, 379, 843, 831, 445, 742, 717,     958,743, 527    ]

​Click me to see the sample solution​

29. Write a Python program to print out a set containing all the colors from color_list_1 which are not present in color_list_2. Go to the editor Test Data : color_list_1 = set(["White", "Black", "Red"]) color_list_2 = set(["Red", "Green"]) Expected Output : {'Black', 'White'} Click me to see the sample solution​

30. Write a Python program that will accept the base and height of a triangle and compute the area. Go to the editor Click me to see the sample solution​

31. Write a Python program to compute the greatest common divisor (GCD) of two positive integers. Go to the editor Click me to see the sample solution​

32. Write a Python program to get the least common multiple (LCM) of two positive integers. Go to the editor Click me to see the sample solution​

33. Write a Python program to sum of three given integers. However, if two values are equal sum will be zero. Go to the editor Click me to see the sample solution​

34. Write a Python program to sum of two given integers. However, if the sum is between 15 to 20 it will return 20. Go to the editor ​Click me to see the sample solution​

35. Write a Python program that will return true if the two given integer values are equal or their sum or difference is 5. Go to the editor Click me to see the sample solution​

36. Write a Python program to add two objects if both objects are an integer type. Go to the editor Click me to see the sample solution​

37. Write a Python program to display your details like name, age, address in three different lines. Go to the editor Click me to see the sample solution​

38. Write a Python program to solve (x + y) * (x + y). Go to the editor Test Data : x = 4, y = 3 Expected Output : (4 + 3) ^ 2) = 49 Click me to see the sample solution​

39. Write a Python program to compute the future value of a specified principal amount, rate of interest, and a number of years. Go to the editor Test Data : amt = 10000, int = 3.5, years = 7 Expected Output : 12722.79 Click me to see the sample solution​

40. Write a Python program to compute the distance between the points (x1, y1) and (x2, y2). Go to the editor Click me to see the sample solution​

41. Write a Python program to check whether a file exists. Go to the editor Click me to see the sample solution​

42. Write a Python program to determine if a Python shell is executing in 32bit or 64bit mode on OS. Go to the editor Click me to see the sample solution​

43. Write a Python program to get OS name, platform and release information. Go to the editor Click me to see the sample solution​

44. Write a Python program to locate Python site-packages. Go to the editor Click me to see the sample solution​

45. Write a python program to call an external command in Python. Go to the editor Click me to see the sample solution​

46. Write a python program to get the path and name of the file that is currently executing. Go to the editor Click me to see the sample solution​

47. Write a Python program to find out the number of CPUs using. Go to the editor Click me to see the sample solution​

48. Write a Python program to parse a string to Float or Integer. Go to the editor Click me to see the sample solution​

49. Write a Python program to list all files in a directory in Python. Go to the editor Click me to see the sample solution​

50. Write a Python program to print without newline or space. Go to the editor Click me to see the sample solution​

51. Write a Python program to determine profiling of Python programs. Go to the editor Note: A profile is a set of statistics that describes how often and for how long various parts of the program executed. These statistics can be formatted into reports via the pstats module. Click me to see the sample solution​

52. Write a Python program to print to stderr. Go to the editor Click me to see the sample solution​

53. Write a python program to access environment variables. Go to the editor Click me to see the sample solution​

54. Write a Python program to get the current username Go to the editor Click me to see the sample solution​

55. Write a Python to find local IP addresses using Python's stdlib Go to the editor Click me to see the sample solution​

56. Write a Python program to get height and width of the console window. Go to the editor Click me to see the sample solution​

57. Write a Python program to get execution time for a Python method. Go to the editor Click me to see the sample solution​

58. Write a Python program to sum of the first n positive integers. Go to the editor Click me to see the sample solution​

59. Write a Python program to convert height (in feet and inches) to centimeters. Go to the editor Click me to see the sample solution​

60. Write a Python program to calculate the hypotenuse of a right angled triangle. Go to the editor Click me to see the sample solution​

61. Write a Python program to convert the distance (in feet) to inches, yards, and miles. Go to the editor Click me to see the sample solution​

62. Write a Python program to convert all units of time into seconds. Go to the editor Click me to see the sample solution​

63. Write a Python program to get an absolute file path. Go to the editor Click me to see the sample solution​

64. Write a Python program to get file creation and modification date/times. Go to the editor Click me to see the sample solution​

65. Write a Python program to convert seconds to day, hour, minutes and seconds. Go to the editor Click me to see the sample solution​

66. Write a Python program to calculate body mass index. Go to the editor Click me to see the sample solution​

67. Write a Python program to convert pressure in kilopascals to pounds per square inch, a millimeter of mercury (mmHg) and atmosphere pressure. Go to the editor Click me to see the sample solution​

68. Write a Python program to calculate the sum of the digits in an integer. Go to the editor Click me to see the sample solution​

69. Write a Python program to sort three integers without using conditional statements and loops. Go to the editor Click me to see the sample solution​

70. Write a Python program to sort files by date. Go to the editor Click me to see the sample solution​

71. Write a Python program to get a directory listing, sorted by creation date. Go to the editor Click me to see the sample solution​

72. Write a Python program to get the details of math module. Go to the editor Click me to see the sample solution​

73. Write a Python program to calculate midpoints of a line. Go to the editor Click me to see the sample solution​

74. Write a Python program to hash a word. Go to the editor Click me to see the sample solution​

75. Write a Python program to get the copyright information and write Copyright information in Python code. Go to the editor Click me to see the sample solution​

76. Write a Python program to get the command-line arguments (name of the script, the number of arguments, arguments) passed to a script. Go to the editor Click me to see the sample solution​

77. Write a Python program to test whether the system is a big-endian platform or little-endian platform. Go to the editor Click me to see the sample solution​

78. Write a Python program to find the available built-in modules. Go to the editor Click me to see the sample solution​

79. Write a Python program to get the size of an object in bytes. Go to the editor Click me to see the sample solution​

80. Write a Python program to get the current value of the recursion limit. Go to the editor Click me to see the sample solution​

81. Write a Python program to concatenate N strings. Go to the editor Click me to see the sample solution​

82. Write a Python program to calculate the sum of all items of a container (tuple, list, set, dictionary). Go to the editor Click me to see the sample solution​

83. Write a Python program to test whether all numbers of a list is greater than a certain number. Go to the editor Click me to see the sample solution​

84. Write a Python program to count the number occurrence of a specific character in a string. Go to the editor Click me to see the sample solution​

85. Write a Python program to check whether a file path is a file or a directory. Go to the editor Click me to see the sample solution​

86. Write a Python program to get the ASCII value of a character. Go to the editor Click me to see the sample solution​

87. Write a Python program to get the size of a file. Go to the editor Click me to see the sample solution​

88. Given variables x=30 and y=20, write a Python program to print "30+20=50". Go to the editor Click me to see the sample solution​

89. Write a Python program to perform an action if a condition is true. Go to the editor Given a variable name, if the value is 1, display the string "First day of a Month!" and do nothing if the value is not equal. Click me to see the sample solution​

90. Write a Python program to create a copy of its own source code. Go to the editor Click me to see the sample solution​

91. Write a Python program to swap two variables. Go to the editor Click me to see the sample solution​

92. Write a Python program to define a string containing special characters in various forms. Go to the editor Click me to see the sample solution​

93. Write a Python program to get the Identity, Type, and Value of an object. Go to the editor Click me to see the sample solution​

94. Write a Python program to convert a byte string to a list of integers. Go to the editor Click me to see the sample solution​

95. Write a Python program to check whether a string is numeric. Go to the editor Click me to see the sample solution​

96. Write a Python program to print the current call stack. Go to the editor Click me to see the sample solution​

97. Write a Python program to list the special variables used within the language. Go to the editor Click me to see the sample solution​

98. Write a Python program to get the system time. Go to the editor​

Note : The system time is important for debugging, network information, random number seeds, or something as simple as program performance. Click me to see the sample solution​

99. Write a Python program to clear the screen or terminal. Go to the editor Click me to see the sample solution​

100. Write a Python program to get the name of the host on which the routine is running. Go to the editor Click me to see the sample solution​

101. Write a Python program to access and print a URL's content to the console. Go to the editor Click me to see the sample solution​

102. Write a Python program to get system command output. Go to the editor Click me to see the sample solution​

103. Write a Python program to extract the filename from a given path. Go to the editor Click me to see the sample solution​

104. Write a Python program to get the effective group id, effective user id, real group id, a list of supplemental group ids associated with the current process. Go to the editor Note: Availability: Unix. Click me to see the sample solution​

105. Write a Python program to get the users environment. Go to the editor Click me to see the sample solution​

106. Write a Python program to divide a path on the extension separator. Go to the editor Click me to see the sample solution​

107. Write a Python program to retrieve file properties. Go to the editor Click me to see the sample solution​

108. Write a Python program to find path refers to a file or directory when you encounter a path name. Go to the editor Click me to see the sample solution​

109. Write a Python program to check if a number is positive, negative or zero. Go to the editor Click me to see the sample solution​

110. Write a Python program to get numbers divisible by fifteen from a list using an anonymous function. Go to the editor Click me to see the sample solution​

111. Write a Python program to make file lists from current directory using a wildcard. Go to the editor Click me to see the sample solution​

112. Write a Python program to remove the first item from a specified list. Go to the editor Click me to see the sample solution​

113. Write a Python program to input a number, if it is not a number generates an error message. Go to the editor Click me to see the sample solution​

114. Write a Python program to filter the positive numbers from a list. Go to the editor Click me to see the sample solution​

115. Write a Python program to compute the product of a list of integers (without using for loop). Go to the editor Click me to see the sample solution​

116. Write a Python program to print Unicode characters. Go to the editor Click me to see the sample solution​

117. Write a Python program to prove that two string variables of same value point same memory location. Go to the editor Click me to see the sample solution​

118. Write a Python program to create a bytearray from a list. Go to the editor Click me to see the sample solution​

119. Write a Python program to round a floating-point number to specified number decimal places. Go to the editor Click me to see the sample solution​

120. Write a Python program to format a specified string limiting the length of a string. Go to the editor Click me to see the sample solution​

121. Write a Python program to determine whether variable is defined or not. Go to the editor Click me to see the sample solution​

122. Write a Python program to empty a variable without destroying it. Go to the editor​

Sample data: n=20 d = {"x":200} Expected Output : 0 {}

​Click me to see the sample solution​

123. Write a Python program to determine the largest and smallest integers, longs, floats. Go to the editor Click me to see the sample solution​

124. Write a Python program to check whether multiple variables have the same value. Go to the editor Click me to see the sample solution​

125. Write a Python program to sum of all counts in a collections.Go to the editor Click me to see the sample solution​

126. Write a Python program to get the actual module object for a given object. Go to the editor Click me to see the sample solution​

127. Write a Python program to check whether an integer fits in 64 bits. Go to the editor Click me to see the sample solution​

128. Write a Python program to check whether lowercase letters exist in a string. Go to the editor Click me to see the sample solution​

129. Write a Python program to add leading zeroes to a string. Go to the editor Click me to see the sample solution​

130. Write a Python program to use double quotes to display strings. Go to the editor Click me to see the sample solution​

131. Write a Python program to split a variable length string into variables. Go to the editor Click me to see the sample solution​

132. Write a Python program to list home directory without absolute path. Go to the editor Click me to see the sample solution​

133. Write a Python program to calculate the time runs (difference between start and current time) of a program. Go to the editor Click me to see the sample solution​

134. Write a Python program to input two integers in a single line. Go to the editor Click me to see the sample solution​

135. Write a Python program to print a variable without spaces between values. Go to the editor Sample value : x =30 Expected output : Value of x is "30" Click me to see the sample solution​

136. Write a Python program to find files and skip directories of a given directory. Go to the editor Click me to see the sample solution​

137. Write a Python program to extract single key-value pair of a dictionary in variables. Go to the editor Click me to see the sample solution​

138. Write a Python program to convert true to 1 and false to 0. Go to the editor Click me to see the sample solution​

139. Write a Python program to valid a IP address. Go to the editor Click me to see the sample solution​

140. Write a Python program to convert an integer to binary keep leading zeros. Go to the editor Sample data : x=12 Expected output : 00001100 0000001100 Click me to see the sample solution​

141. Write a python program to convert decimal to hexadecimal. Go to the editor Sample decimal number: 30, 4 Expected output: 1e, 04 Click me to see the sample solution​

142. Write a Python program to find the operating system name, platform and platform release date. Go to the editor Operating system name: posix Platform name: Linux Platform release: 4.4.0-47-generic Click me to see the sample solution​

143. Write a Python program to determine if the python shell is executing in 32bit or 64bit mode on operating system. Go to the editor Click me to see the sample solution​

144. Write a Python program to check whether variable is integer or string. Go to the editor Click me to see the sample solution​

145. Write a Python program to test if a variable is a list or tuple or a set. Go to the editor Click me to see the sample solution​

146. Write a Python program to find the location of Python module sources. Go to the editor Click me to see the sample solution​

147. Write a Python function to check whether a number is divisible by another number. Accept two integers values form the user. Go to the editor Click me to see the sample solution​

148. Write a Python function to find the maximum and minimum numbers from a sequence of numbers. Go to the editor Note: Do not use built-in functions. Click me to see the sample solution​

149. Write a Python function that takes a positive integer and returns the sum of the cube of all the positive integers smaller than the specified number. Go to the editor Click me to see the sample solution​

150. Write a Python function to check whether a distinct pair of numbers whose product is odd present in a sequence of integer values. Go to the editor Click me to see the sample solution