InstallingPythonandEclipseonyourPCYourfirsttaskforthecourse:getyourcomputerupandrunningwithPython!SomeinstallationinstructionsforbothMacOSandWindowsfollowbelowifyouneedthem.Ifyou’rerunningLinux,youdon’twantinstructionsJ.WewillbecodinginPython3forthiscourse–unlessyou’realreadyaPython2whizorfeelastrongdesiretoconfuseyourselfandyourinstructors,makesureyou’reworkingwiththisversion(any3.x.xshouldbefine–mostrecentis3.7.3asofJune).Similarly,thestronglysuggesteddevelopmentenvironmentforthiscourseisEclipse,butifyoupreferanotherIDEortexteditorbasedonyourpreviousexperience,that’syourbusiness.Havingdifficultiesinstallingwiththeseinstructions?Rule#1:trytroubleshootingyourselffirst!Asyouprobablyknow,learningtodiagnoseproblemsandtrackdownothers’solutionsonGoogle,StackExchangeorotheronlinecodingforumsisaveryvaluablelearningprocess.Thiskindofabstractproblemsolvingisthemainjobdescriptionformanycoders/analysts/datascientists!Ofcourse,ifyou’restillhavingissuesaftergivingityourverybesttry,feelfreetosendanemailandwe’llhelpyougetsetup!

A. PythoninstallationonMacOS:MacOSXhasPythonversion2.7“outofthebox,”butwewillusePython3inthiscourse.Todownloadit,startatthiswebsite:https://www.python.org/downloads/.

1. ClickontheMacOSXdownloadlinkforPython3.7.3.

2. Oncedownloaded,runthepackageInstaller.ClickContinuethroughallscreens,acceptinglicensesagreementsasrequired.Finally,clickInstall.

3. That’sit!Python3shouldbefunctional.Ifyouwanttotestthis:

a. OpenMacOS’sTerminalandissuethecommandpython3--version,asshown

below.IfthereturnisPython3.7.3,yourcomputerrecognizesthenewversion.

b. Nexttypepython3toopenaPython3shell.

c. Whentheshellisopen,typeprint(“HelloWorld!”).Iftheterminal’sreturnis

HelloWorld,you’regoodtogo(andasalwaysyoushouldappreciatethatyourcomputeristalkingtoyou:))

d. ToexitthePythonshellinterminal,typeexit().

B. InstallingPythononWindows:WindowsdoesnottypicallycomewithPython3included,sowewilldownloadandinstallit.Todownload,tohttps://www.python.org/downloads/release/python-373/.

1. Youshouldknowwhetheryourcomputerisrunning32-or64-bitversionof

Windows.Ifyoudon’tknowthis,youcanfigureoutbyfollowingthedirectionsgivenatthiswebsite.

i. Ifyou’rerunning64-bit,onthePythonwebpage,clickonthelinkto

DownloadWindowsx86-64executableinstaller.

ii. Ifyou’rerunning32-bit,onthePythonwebpage,clickonthelinktoDownloadWindowsx86executableinstaller.

2. Double-clickthedownloaded.exefile.Youshouldbeatascreenthatlookslikethe

onebelow.

i. TakecarefulnoteofthefileaddresslistedbelowthelinktoInstallNow.ThisiswhereyourcomputerwillstorePython3.YouwillneedtoknowthisfileaddresstointegratePythonandEclipse(orotherIDEs).

ii. ChecktheboxnexttoAddPython3.7toPATH,thenclickInstallNow.Ifafollowupcontrolwindowasksyoutoallowchangestothecomputer,clickYes.

iii. WewillinstallPythonwithdefaultsettings,sononeedtochangeanything

elserightnow.

3. Waitfortheprogramtoinstall.Ifallgoeswell,awindowshouldpopupandtellyouSetupwassuccessful.Pythonwasinstalled.

4. Totestthis,openyourCommandPromptfromyourStartmenu.Typepython3--versionintotheinitialcommandline(>).IftheresultcomesbackPython3.7.3,youhavethemostrecentversion.

5. Next,typepythonintothecommandline.OncePythonisopenedintheprompt,trytypingsomemathematicalexpressionsintothe(>>>)commandline(i.e.somethinglike3*5or5876+23).Ifthecomputer’sresponsecomesbackcorrectly,Pythonisinstalledandreadytogo.Typeexit()intothecommandlinetoclosePython.

C. InstallingEclipse(similarforMacandWindows)ToobtaintheEclipsedesktopplatform,startatthiswebsite:https://www.eclipse.org/downloads/packages/installerTherearesomeinstructionsforinstallationontheEclipsewebsite,butherearesomemoredetailedhighlights:

1. DownloadtheEclipseInstallerfilethatisappropriateforyouroperatingsystem.

2. Unzipthefile(ifneeded)andstarttheInstalleronceitisavailable.

3. Ifyougetamessagesaying“TouseJavacommand-linetools,youneedtoinstallaJDK”,youcandownloadthemostrecentJavaDevelopmentKit(JDK)atthiswebsite.InstalltheJDK(choosingoneappropriatetoyourOS),thenreturntothisstep.

4. Onceyou’vestartedtheInstaller,youshouldgettoaninitiallistofinstalloptions

thatlookslikethewindowbelow.(NotethatitisalsopossibletobetakendirectlytoawindowthatlooksliketheonebelowforStep5.Ifso,skiptostep5.)

5. Clickonthedrop-downmenuiconinthetop-rightcornerandselect“ADVANCEDMODE”.Youshouldbetakentoanewinstallationproductpackagemenu.Fromthismenu,unlessyouwanttoadddevelopmentpackagesforothercodinglanguages(Java,C/C++,etc.),select“EclipsePlatform”,ashighlightedbelow.

6. Once“EclipsePlatform”isselected,keepclickingNext>untilyoucanselectFinish.(ThenclickFinish).Youshouldbetakentoaprogressboxthatlooksroughlylikethis:

7. Acceptlicenseagreementsasneededduringsetup.Iftherearenoinstallationproblems,thesoftwareshouldopenitselfuponsetupcompletion.

8. Youmaygetadialogboxaskingyoutoselectadirectoryforyourworkspace(seeimagebelow).Setthisdirectorysomewherethatyouwillbeabletofindlater–itwillbethedefaultlocationforsavingyourpreferences,projects,codework,etc.

9. Whenthesoftwareopens,youwillbetakentoawelcomescreen.NowweneedtointegratePyDevandEclipse.Todothis,navigatetothetopribbonandclickonHelp>InstallNewSoftware…

10. Anpop-upwindowwillopen(seeimagebelow).Inthetextboxthatsays“Workwith”,typethefollowingURL:http://pydev.org/updates.ThenhitENTER.Afterafewmoments,youshouldseetwosoftwareoptionsavailable.Asshownbelow,selectonlytheboxforPyDev(DONOTSELECTtheoptionalMylynbox).

11. KeepclickingNext>,andagain,acceptlicenseagreementsasneeded.ThenclickFinish.IfyougetaSecurityWarningbox,selectInstallAnyway.Thisshouldfinishtheinstallation.Asoftwareupdatesboxshouldpopup;clickRestartNow.Thesoftwareshouldnowbeopenandupdated.

12. NowweneedtoresetsomepreferencessothatPyDevisreadyforuse.Todothis,findthePreferencestabinthetopribbon.(ForMacOS,thiswillbefoundinEclipse>Preferences…,asshownbelow.ForWindowsOS,IbelieveyoucanfinditinWindow>Preferences).

13. Oncethewindowopens,drilldowntheleft-hand-sidemenutoselecttheinterpreter.ClickdownPyDev>Interpreters>PythonInterpreters.Inthetoprightcorneroftheresultingwindow,youshouldhaveaBrowseforPython/pypyexebutton(inWindows,thisbuttonmightjustbecalledNew…).Clickonit.

14. ASelectInterpreterwindowshouldpopup.YouneedtodirectEclipsetothelocation

ofyourPython3librariesandpackages.InthetextboxforInterpreterExecutable,typeoutthefilelocation(andfilename)whereyou’vesavedPython.(ForMacOSXusers,thisistypically/usr/local/bin/Python3.7.ForWindowsusers,recallwhereyou’vesavedPythonfromearlier.).IntheInterpreterNametextbox,giveyourinterpreteraname(Python37wouldbeaneasyandobviouschoice).

15. ClickOKwhenawindowtitledSelectionneededpopsup.

16. Whenyou’vereturnedtothePreferenceswindow,itshouldlookvaguelyliketheimagebelow.ClickApplyandClosewhenyou’reready.

17. Youshouldbebacktotheinitialworkspacewindownow,andyouhaveEclipseandPyDevproperlyconfigured!Tomakesureeverythingisinworkingorder(andgetyousomeinitialinteractionwithEclipse),let’scodeupandrunabasicPythonprogram…

18. Inthetopribbon,selectFile>New>Project.SelectPyDev>PyDevProjectintheresultingwindow.ThenclickNext>.

19. Createanewprojectwiththename“FirstPythonProj”.MakesuretocheckthelowerboxforCreate‘src’folderandaddittothePYTHONPATH.ThenpressFinish.

20. Awindowmightpopup;clickOpenPerspective.ThissetsthePyDevperspectiveforthisproject.

21. Toopenaworkspace(ifyouhaven’talready),gotothetopribbonandselectWindow>NewWindow.Intheleftmenuoftheresultingplatform,rightclickonthesrcfolderoftheprojectandselectNew>PyDevModule.Itshouldlooklike:

22. Createamodulecalled“FirstModule”.ClickFinishonceyou’venamedit.Ifanyadditionalboxespopuphere,justclickOK.

23. Createsourcecode(ontheright)thatreadslikethis:

24. Rightclickonyourmodelinthelefthandmenu(FirstModule.py)andselectRunAs>

PythonRun.Alternatively,clickthebuttononthetopmenuthatlookslike .

25. Ifyouseethefollowingresultsinyourconsole(bottomofworkspace),congrats!You’regoodtogo.