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C859 Python Syntax Questions and
Complete Solutions Graded A+
var1, var2, var3 = 1, 2, 3 - Answer: multiple variable assignment 12 - Answer: integer 1.2 - Answer: float 'twelve' - Answer: string "twelve" - Answer: string True or False - Answer: Boolean value type() - Answer: determines type of an object (integer, boolean, etc) int() - Answer: converts to integer object float() - Answer: converts to float object str() - Answer: converts to string object print() - Answer: displays a message
- Answer: addition (integer) or concatenation (string)
** - Answer: power of % - Answer: modulus, remainder / - Answer: division, always results in float // - Answer: division, always results in integer = - Answer: assignment operator += - Answer: reassignment operator, adds -= - Answer: reassignment operator, subtracts *= - Answer: reassignment operator, multiples /= - Answer: reassignment operator, divides < - Answer: less than
- Answer: greater than <= - Answer: less than or equal to = - Answer: greater than or equal to == - Answer: equal to
myNumbers = [1, 4.8, 7, 9.2, 3, 0] - Answer: creates a list mylist[0] - Answer: accesses first element from a list mylist[-1] - Answer: accesses last element from a list mylist[1:3] - Answer: slices list including second and third element mylist[:3] - Answer: slices list beginning with first element and including through the third element. Index position 3 is not included in selection. mylist[3:] - Answer: slices list beginning with fourth element and include remainder of the list 9.2 in myNumbers - Answer: looks for a match and returns Boolean value 9.2 not in myNumbers - Answer: ensures a match does not exist in list len() - Answer: counts items in list max() - Answer: returns greatest element of list min() - Answer: returns smallest element of list sorted() - Answer: returns copy of list ordered smallest to largest sorted(listname, reverse=True) - Answer: returns copy of list ordered largest to smallest sum() - Answer: returns total sum of list values
append() - Answer: adds new value to end of list pop() - Answer: removes last item from a list pop(1) - Answer: removes second item from a list join() - Answer: joins values from a list using a defined separator set() - Answer: creates a set, or a list that contains unique items add() - Answer: adds value to set discard() - Answer: removes value from set, if found for city in cities: - Answer: iterates over items within a list range() - Answer: defines a range of numbers while temp >= 32: - Answer: iterates a set of commands as long as the condition remains true, stopping when the condition becomes false break - Answer: loop command that stops iteration prematurely studentGrades = { 'Orfu': 83, 'Bismark': 98, 'Igor': 72} - Answer: entries are added in key/value pairs if 'key' in dictionary: - Answer: verifies if key exists in dictionary get() - Answer: looks up value by key
