{"id":674,"date":"2023-03-29T16:06:29","date_gmt":"2023-03-29T16:06:29","guid":{"rendered":"https:\/\/tinyytopic.com\/?p=674"},"modified":"2023-03-29T16:03:57","modified_gmt":"2023-03-29T16:03:57","slug":"using-global-variables-in-a-python-function","status":"publish","type":"post","link":"https:\/\/tinyytopic.com\/index.php\/2023\/03\/29\/using-global-variables-in-a-python-function\/","title":{"rendered":"Using global variables in a Python function"},"content":{"rendered":"\n<p style=\"font-size:16px\"><br>In Python, a global variable is a variable that is defined outside of any function or class and is accessible to all functions and classes within the same module.<\/p>\n\n\n\n<p style=\"font-size:16px\"><br>Here is an example of the usage of a global variable:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>my_global_var = \"Hello\"\r\n\r\ndef my_function():\r\n    global my_global_var\r\n    my_global_var = \"World\"\r\n    print(\"Inside function:\", my_global_var)\r\n\r\nprint(\"Before function:\", my_global_var)\r\nmy_function()\r\nprint(\"After function:\", my_global_var)\r<\/code><\/pre>\n\n\n\n<p style=\"font-size:16px\">In this example, the <code>my_global_var<\/code> variable is defined outside the function and initialized with the value <code>\"Hello\"<\/code>. Inside the <code>my_function()<\/code> function, the <code>global<\/code> keyword is used to indicate that the function should use the global <code>my_global_var<\/code> variable. The value of <code>my_global_var<\/code> is then changed to <code>\"World\"<\/code> and printed out inside the function.<\/p>\n\n\n\n<p style=\"font-size:16px\"><br>When the function is called, the output will be:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Before function: Hello\r\nInside function: World\r\nAfter function: World\r<\/code><\/pre>\n\n\n\n<p style=\"font-size:16px\">As you can see, the value of <code>my_global_var<\/code> has been changed inside the function and this change is reflected outside the function as well.<\/p>\n\n\n\n<p style=\"font-size:16px\"><br>Note that using global variables can make your code harder to read and maintain, and it is generally considered good practice to avoid them whenever possible. Instead, you can pass variables as arguments to functions and return values from functions to achieve the desired functionality.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Python, a global variable is a variable that is defined outside of any function or class and is accessible to all functions and classes within the same module. Here is an example of the usage of a global variable: In this example, the my_global_var variable is defined outside the function and initialized with the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[42,12],"tags":[88,14,13,16,89,80],"class_list":["post-674","post","type-post","status-publish","format-standard","hentry","category-general-qa","category-python","tag-global-variable","tag-programming-language","tag-python","tag-python-code","tag-python-function","tag-python-qna"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Using global variables in a Python function - tinyytopic.com<\/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:\/\/tinyytopic.com\/index.php\/2023\/03\/29\/using-global-variables-in-a-python-function\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using global variables in a Python function - tinyytopic.com\" \/>\n<meta property=\"og:description\" content=\"In Python, a global variable is a variable that is defined outside of any function or class and is accessible to all functions and classes within the same module. 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