Python Function Arguments - W3Schools

The terms parameter and argument can be used for the same thing: information that are passed into a function. From a function's perspective: A parameter is the ... 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Argumentsarespecifiedafterthefunctionname,insidetheparentheses. Youcanaddasmanyargumentsasyouwant,justseparatethemwithacomma. Thefollowingexamplehasafunctionwithoneargument(fname). Whenthefunctioniscalled,wepassalongafirstname, whichisusedinsidethefunctiontoprintthefullname: Example defmy_function(fname): print(fname+"Refsnes") my_function("Emil")my_function("Tobias")my_function("Linus") TryitYourself» ArgumentsareoftenshortenedtoargsinPythondocumentations. ParametersorArguments? Thetermsparameterandargumentcanbeusedforthesamething:informationthatarepassedintoafunction. Fromafunction'sperspective: Aparameteristhevariablelistedinsidetheparenthesesinthefunctiondefinition. Anargumentisthevaluethataresenttothefunctionwhenitiscalled. NumberofArguments Bydefault,afunctionmustbecalledwiththecorrectnumberofarguments. Meaningthatifyourfunctionexpects2arguments,youhavetocallthefunction with2arguments,notmore,andnotless. Example Thisfunctionexpects2arguments,andgets2arguments: defmy_function(fname,lname): print(fname+""+lname) my_function("Emil","Refsnes") TryitYourself» Ifyoutrytocallthefunctionwith1or3arguments,youwillgetanerror: Example Thisfunctionexpects2arguments,butgetsonly1: defmy_function(fname,lname): print(fname+""+lname) my_function("Emil") TryitYourself» RelatedPages PythonFunctionsTutorial Function CallaFunction *args KeywordArguments **kwargs DefaultParameterValue PassingaListasanArgument FunctionReturnValue ThepassStatementiFunctions FunctionRecursion ❮PythonGlossary NEW WejustlaunchedW3Schoolsvideos Explorenow COLORPICKER Getcertifiedbycompletingacoursetoday! w3schoolsCERTIFIED.2022 Getstarted CODEGAME PlayGame