Other Useful Modules - Honors Computer Programming
PythonLists (Documentation):Creating a Lista = ['cat','dog']Referencing a Lista[0] – 'cat'a[1] - 'dog'Adding to a Lista.append('bird')#adds bird to the end of the list['cat', 'dog', 'bird'] Finding an item in a list a.index('dog') – returns 1Functions: A function returns a value. It can have input in a parameter () or not.Defining Functionsdef function_name(input):#indented code#(4 spaces or 1 tab) return outputORdef functionName() #variable is declared at the top of code. variableName = 3**3 return variableNamedef circle_area(radius): area = 3.14*(radius**2) return areadef newWord(): random.shuffle(wizzard_list) word=(wizzard_list[0]) return wordCalling Functionsfunction_name(input) OutputORfunction_name()circle_area(5) # returns78.5ORnewWord()#returns a random word from a listInput/Outputprint(3+7) 10>>> print 'Hi' Hi>>> age = input("How old are you? ") How old are you? 30>>> print age 30Formatting#Convert to an integer int(3.14) 3#Convert into a string of characters.>>> 'I am ' + str(age) + 'years old' 'I am 30 years old'Formatting#Convert a string into an int.>>> age = input('How old are you?')age = int(age)print(' You were born in ',2015-age, 'years old')Control Flow DocumentationWhile#initialize test variable while (test is true):#run indented code#increment test variablenumber = 0while (number < 5): print numbernumber = number + 1Forfor variable in list: print variablefor number in range(0,5): print variableIf/Elseif a < b:#do this indented code else:#do this indented codeif 1 < 2:print "Yes" else:print "No"Other Useful ModulesPython ConceptPython CodeUse len to tell how many characters are in a String.word = 'computer' letters = len(word)RandomDocumentation from random import * randint(1,10) randint(1,10) ................
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