{"id":24837,"date":"2021-11-02T09:54:27","date_gmt":"2021-11-02T04:24:27","guid":{"rendered":"https:\/\/python-programs.com\/?p=24837"},"modified":"2021-11-05T20:37:34","modified_gmt":"2021-11-05T15:07:34","slug":"python-locals-function-with-examples","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-locals-function-with-examples\/","title":{"rendered":"Python locals() Function with Examples"},"content":{"rendered":"<p>In the previous article, we have discussed <a href=\"https:\/\/python-programs.com\/python-hasattr-method-with-examples\/\">Python hasattr() Method with Examples<\/a><br \/>\n<strong>locals() Function in Python:<\/strong><\/p>\n<p>The locals() method updates the current local symbol table and returns a dictionary of its contents.<\/p>\n<p>A symbol table is a data structure maintained by a compiler that contains all necessary program information.<\/p>\n<p>Variable names, methods, classes, and so on are examples of this.<\/p>\n<p>There are two types of symbol tables.<\/p>\n<ol>\n<li>Global symbol table<\/li>\n<li>Local symbol table<\/li>\n<\/ol>\n<p>A global symbol table stores all information related to the program&#8217;s global scope and is accessed in Python via the globals() method.<\/p>\n<p>All functions and variables that are not associated with any class or function are included in the global scope.<\/p>\n<p>Similarly, the Local symbol table stores all information related to the program&#8217;s local scope and is accessed in Python via the locals() method.<\/p>\n<p>The local scope could be within a function, a class, or something else.<\/p>\n<p><strong>Syntax:<\/strong><\/p>\n<pre>locals()<\/pre>\n<p><strong>Parameter Values:\u00a0<\/strong>The locals() method does not accept any parameters.<\/p>\n<p><strong>Return Value:<\/strong><\/p>\n<p>The dictionary associated with the current local symbol table is updated and returned by the locals() method.<\/p>\n<h2>locals() Function with Examples in Python<\/h2>\n<ul>\n<li><a href=\"#Using_Built-in_Functions_(Static_Input)\">Using Built-in Functions (Static Input)<\/a><\/li>\n<\/ul>\n<h3 id=\"Using_Built-in_Functions_(Static_Input)\">Using Built-in Functions (Static Input)<\/h3>\n<h5>1)How does Python\u2019s globals() method work?<\/h5>\n<p><strong>Approach:<\/strong><\/p>\n<ul>\n<li>Take a variable and initialize it with the locals() function.<\/li>\n<li>Print the above result.<\/li>\n<li>The Exit of the Program.<\/li>\n<\/ul>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Take a variable and initialize it with the locals() function.\r\nm = locals()\r\n# Print the above result.\r\nprint(m)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">{'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': &lt;_frozen_importlib_external.SourceFileLoader object at 0x7f65e0415cc0&gt;, '__spec__': None, '__annotations__': {}, '__builtins__': &lt;module 'builtins' (built-in)&gt;, '__file__': '\/home\/29fd5ae710f8ed30944276be6a192e84.py', '__cached__': None, 'm': {...}}<\/pre>\n<h5>Example-2: How does locals() function within a local scope?<\/h5>\n<p><strong>Approach:<\/strong><\/p>\n<ul>\n<li>Create a function localNotExist() which returns the value returned\u00a0 by locals() function.<\/li>\n<li>Create another function localsExist().<\/li>\n<li>Inside the localsExist take a variable and set its value to true.<\/li>\n<li>Return the value returned by locals() function.<\/li>\n<li>Inside the main function call localNotExist() function and print it.<\/li>\n<li>call localsExist() function and print it.<\/li>\n<li>The Exit of the Program.<\/li>\n<\/ul>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Create a function localNotExist() which returns the value returned\u00a0 by locals() function.\r\n\r\n\r\ndef localNotExist():\r\n    return locals()\r\n# Create another function localsExist().\r\n\r\n\r\ndef localsExist():\r\n  # Inside the localsExist take a variable and set its value to true.\r\n    present = True\r\n    # Return the value returned by locals() function.\r\n\r\n    return locals()\r\n\r\n\r\n# Inside the main function call localNotExist() function and print it.\r\n# call localsExist() function and print it.\r\nprint('localNotExist :', localNotExist())\r\nprint('localsExist :', localsExist())\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">localNotExist : {}\r\nlocalsExist : {'present': True}<\/pre>\n<p>Fed up with searching various pages for the list of <a href=\"https:\/\/python-programs.com\/python-built-in-functions\/#Python_Built_in_Functions\">Python Built in Functions<\/a>? Look at the tutorial linked here and explore all coding samples of built-in functions of python.<\/p>\n<ul>\n<li><a href=\"https:\/\/python-programs.com\/python-next-function-with-examples\/\">Python next() Function with Examples<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-list-function-with-examples\/\">Python list() Function with Examples<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-sum-function-with-examples\/\">Python sum() Function with Examples<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-tuple-function-with-examples\/\">Python tuple() Function with Examples<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In the previous article, we have discussed Python hasattr() Method with Examples locals() Function in Python: The locals() method updates the current local symbol table and returns a dictionary of its contents. A symbol table is a data structure maintained by a compiler that contains all necessary program information. Variable names, methods, classes, and so &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/python-programs.com\/python-locals-function-with-examples\/\"> <span class=\"screen-reader-text\">Python locals() Function with Examples<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":7,"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":"<!-- This site is optimized with the Yoast SEO plugin v18.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python locals() Function with Examples - 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-locals-function-with-examples\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python locals() Function with Examples - Python Programs\" \/>\n<meta property=\"og:description\" content=\"In the previous article, we have discussed Python hasattr() Method with Examples locals() Function in Python: The locals() method updates the current local symbol table and returns a dictionary of its contents. 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