{"id":5706,"date":"2021-05-16T10:43:59","date_gmt":"2021-05-16T05:13:59","guid":{"rendered":"https:\/\/python-programs.com\/?p=5706"},"modified":"2021-11-22T18:42:36","modified_gmt":"2021-11-22T13:12:36","slug":"python-args-how-to-pass-multiple-arguments-to-function","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-args-how-to-pass-multiple-arguments-to-function\/","title":{"rendered":"Python : *args | How to pass multiple arguments to function ?"},"content":{"rendered":"

Passing multiple arguments to function in Python.<\/h2>\n

In this article we will discuss how we can pass multiple arguments\u00a0 to function using *args<\/code> in Python.<\/p>\n

Let’s say if we want to calculate average of four numbers by a function e.g avg(n1,n2,n3,n4) then we can calculate average of any four numbers\u00a0 by passing some numbers arguments.<\/p>\n

Like<\/p>\n

# Program :\r\n\r\ndef avg(n1,n2,n3,n4):\r\n    # function to calculate average of 4 numbers\r\n    return (n1+n2+n3+n4)\/4\r\naverage = avg(10,20,30,40)\r\nprint(average)<\/pre>\n
Output :\r\n25.0<\/pre>\n
But what if we want to calculate average of 10 numbers then we can’t take the above function. Here, in this article we shall define a function in python which can accepts any number of arguments. So, let’s start the topic to know how we can achieve this.<\/p>\n
Defining a function that can accept variable length arguments :<\/h3>\n
We can give any number of arguments in function by prefixing function with symbol ‘*<\/code>‘.<\/p>\n
# Program :\r\n\r\ndef calcAvg(*args):\r\n    '''Accepts variable length arguments and calculate average of n numbers'''\r\n    # to get the count of total arguments passed\r\n    argNums = len(args)\r\n    if argNums > 0 :\r\n        sum_Nums = 0\r\n        # to calculate average from arguments passed\r\n        for ele in args :\r\n            sum_Nums += ele\r\n        return sum_Nums \/ argNums\r\n        print(sum_Nums)\r\n    else:\r\n        return \r\nif __name__ == '__main__':\r\n    avg_Num = calcAvg(10,20,30,40,50)\r\n    print(\"Average is \" , avg_Num)\r\n<\/pre>\n
Output :\r\nAverage is 30.0<\/pre>\n
Important points about *args :<\/h3>\n
Positioning of parameter *args :<\/h4>\n
Along with *args<\/code> we can also add other parameters. But it should be make sure that *args<\/code> should be after formal arguments.<\/p>\n
Let’s see the representation of that.<\/p>\n
# Program :\r\n\r\ndef publishError(startPar, endPar, *args):\r\n# Accepts variable length arguments and publish error\r\n    print(startPar)\r\n    for el in args :\r\n        print(\"Error : \" , el)\r\n    print(endPar)    \r\npublishError(\"[Begin]\" , \"[Ends]\" , \"Unknown error\")\r\n<\/pre>\n
Output :\r\n[Begin]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \r\nError :\u00a0 Unknown error\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \r\n[Ends]<\/pre>\n
Variable length arguments can be of any type :<\/h3>\n
In *arg<\/code> we can not only pass variable number of arguments, but also it can be of any data type.<\/p>\n
# Programs :\r\n\r\ndef publishError(startPar, endPar, *args):\r\n# Accepts variable length arguments and publish error\r\n    print(startPar)\r\n    for el in args :\r\n        print(\"TypeError : \" , el)\r\n    print(endPar)    \r\npublishError(\"[Begin]\" , \"[Ends]\" , [10, 6.5, 8], ('Holla','Hello'), \"\")\r\n<\/pre>\n
Output :\r\n[Begin]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \r\nTypeError :\u00a0 [10, 6.5, 8]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \r\nTypeError :\u00a0 ('Holla', 'Hello')\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \r\nTypeError :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \r\n[Ends]<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Passing multiple arguments to function in Python. In this article we will discuss how we can pass multiple arguments\u00a0 to function using *args in Python. Let’s say if we want to calculate average of four numbers by a function e.g avg(n1,n2,n3,n4) then we can calculate average of any four numbers\u00a0 by passing some numbers arguments. …<\/p>\n
  Python : *args | How to pass multiple arguments to function ?<\/span> Read More »<\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[5],"tags":[],"yoast_head":"\nPython : *args | How to pass multiple arguments to function ? - Python Programs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/python-programs.com\/python-args-how-to-pass-multiple-arguments-to-function\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python : *args | How to pass multiple arguments to function ? - Python Programs\" \/>\n<meta property=\"og:description\" content=\"Passing multiple arguments to function in Python. 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