Python function arguments and parameters<\/strong> are important concepts frequently asked in programming exams and practical assessments. They define how values are passed to functions and how functions process data. This topic covers positional arguments, keyword arguments, and default arguments in Python<\/strong>, explained in a simple and exam-oriented manner to help students understand, remember, and apply them correctly in coding questions.<\/p>\n In Python, arguments are values passed to a function when it is called. There are different types of arguments that can be used in Python functions:<\/span><\/p>\n 1. Positional Arguments:<\/span><\/strong><\/p>\n 2. Keyword Arguments:<\/span><\/span><\/strong><\/p>\n 3. Default Arguments:<\/span><\/span><\/strong><\/p>\n 4. Variable-length Arguments:<\/span><\/span><\/strong><\/p>\n <\/p>\n Let’s delve deeper into each type of argument using the example of adding two numbers in Python.<\/span><\/strong><\/p>\n Positional arguments are the most common type of arguments in Python functions. They are passed to a function based on their position, meaning the order in which they are passed matters.<\/span><\/p>\n Example:\u00a0<\/span><\/p>\n <\/p>\n In this example:<\/span><\/p>\n Default arguments are parameters in a function that have a default value. If a value is not provided for these parameters during the function call, they take on their default value.<\/span><\/p>\n Example:<\/span><\/p>\n <\/p>\n In this example:<\/span><\/p>\n Keyword arguments allow you to specify arguments by their parameter names, regardless of their order. This provides clarity and flexibility in function calls.<\/span><\/p>\n Example:<\/span><\/p>\n <\/p>\n In this example:<\/span><\/p>\n Variable-length arguments allow a function to accept any number of arguments. In Python, you can achieve this using Example:<\/span><\/p>\n <\/p>\n In this example:<\/span><\/p>\n These different types of arguments provide flexibility and clarity in function calls, allowing you to write more versatile and expressive code in Python.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":" Python Function Arguments and Parameters Notes (Positional, Keyword, Default) Python function arguments and parameters are important concepts frequently asked in programming exams and practical assessments. They define how values are passed to functions and how functions process data. This topic covers positional arguments, keyword arguments, and default arguments in Python, explained in a simple and […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,20],"tags":[],"class_list":["post-4751","post","type-post","status-publish","format-standard","hentry","category-cbse-sample-papers-class-12","category-cbse-computer-science-with-python-class-12"],"_links":{"self":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/4751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/comments?post=4751"}],"version-history":[{"count":2,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/4751\/revisions"}],"predecessor-version":[{"id":5574,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/4751\/revisions\/5574"}],"wp:attachment":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/media?parent=4751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/categories?post=4751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/tags?post=4751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
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1. Positional Arguments:<\/span><\/h3>\n
def add_numbers(num1, num2):\r\n\r\n return num1 + num2\r\n\r\n# Calling the function with positional arguments\r\n\r\nresult = add_numbers(5, 3)\r\n\r\nprint(\"Result (Positional Arguments):\", result)\r\n<\/pre>\n
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num1<\/code> and num2<\/code> are positional arguments.<\/span><\/li>\nadd_numbers<\/code> is called, the first argument 5<\/code> is assigned to num1<\/code>, and the second argument 3<\/code> is assigned to num2<\/code>.<\/span><\/li>\n<\/h3>\n
2. Default Arguments:<\/span><\/h3>\n
def add_numbers(num1, num2=0):\r\n\r\n return num1 + num2\r\n\r\n# Calling the function without specifying num2 (using default value)\r\n\r\nresult = add_numbers(5)\r\n\r\nprint(\"Result (Default Argument):\", result)\r\n<\/pre>\n
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num2<\/code> is a default argument with a default value of 0<\/code>.<\/span><\/li>\nnum2<\/code> is not provided during the function call, it automatically takes on the value of 0<\/code>.<\/span><\/li>\nadd_numbers<\/code> is called with only one argument 5<\/code>, it uses the default value of 0<\/code> for num2<\/code>, resulting in 5
\n+ 0<\/code><\/span><\/li>\n<\/ul>\n<\/h3>\n
3. Keyword Arguments:<\/span><\/h3>\n
def add_numbers(num1, num2):\r\n\r\n return num1 + num2\r\n\r\n# Calling the function with keyword arguments\r\n\r\nresult = add_numbers(num1=5, num2=3)\r\n\r\nprint(\"Result (Keyword Arguments):\", result)\r\n<\/pre>\n
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add_numbers<\/code> is called with keyword arguments num1=5<\/code> and num2=3<\/code>.<\/span><\/li>\n<\/h3>\n
4. Variable-length Arguments:<\/span><\/h3>\n
*args<\/code>, which collects positional arguments into a tuple.<\/span><\/p>\ndef add_numbers(*args):\r\n\r\n total = 0\r\n\r\n for num in args:\r\n\r\n total += num\r\n\r\n return total\r\n\r\n# Calling the function with variable number of arguments\r\n\r\nresult = add_numbers(5, 3, 7, 2)\r\n\r\nprint(\"Result (Variable-length Arguments):\", result)\r\n<\/pre>\n
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add_numbers<\/code> accepts any number of arguments using *args<\/code>.<\/span><\/li>\n