{"id":24464,"date":"2021-10-17T18:41:41","date_gmt":"2021-10-17T13:11:41","guid":{"rendered":"https:\/\/python-programs.com\/?p=24464"},"modified":"2021-11-05T19:24:10","modified_gmt":"2021-11-05T13:54:10","slug":"program-for-python-string-isalnum-method","status":"publish","type":"post","link":"https:\/\/python-programs.com\/program-for-python-string-isalnum-method\/","title":{"rendered":"Program for Python String isalnum() Method"},"content":{"rendered":"<p>In the previous article, we have discussed <a href=\"https:\/\/python-programs.com\/program-for-python-string-center-method\/\">Python Program for center() Function<\/a><br \/>\n<strong>isalnum() Function in Python:<\/strong><\/p>\n<p>The isalnum() method returns a value True if all of the characters are alphanumeric, which means they are alphabet letters (a-z) and numbers (0-9).<\/p>\n<p>(space)!#%&amp;? etc are examples of characters that are not alphanumeric.<\/p>\n<p><strong>Syntax:<\/strong><\/p>\n<pre>string.isalnum()<\/pre>\n<p><strong>Parameters: <\/strong>This function has no parameters.<\/p>\n<p><strong>Examples:<\/strong><\/p>\n<p><strong>Example1:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre>Given first string = \"pythonprograms\"\r\nGiven second string = \"10345 @@@good morning\"<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">The above given first string is : pythonprograms\r\nThe given first string after applying isalnum() function: True\r\nThe above given second string is : 10345 @@@good morning\r\nThe given second string after applying isalnum() function: False<\/pre>\n<p><strong>Example2:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre>Given first string = \"hello this is python programming platform\"\r\nGiven second string = \"hello123\"<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">The above given first string is : hello this is python programming platform\r\nThe given first string after applying isalnum() function: False\r\nThe above given second string is : hello123\r\nThe given second string after applying isalnum() function: True<\/pre>\n<h2>Program for isalnum() Function in Python<\/h2>\n<ul>\n<li><a href=\"#Using_Built-in_Functions_(Static_Input)\">Using Built-in Functions (Static Input)<\/a><\/li>\n<li><a href=\"#Using_Built-in_Functions_(User_Input)\">Using Built-in Functions (User Input)<\/a><\/li>\n<\/ul>\n<h3 id=\"Using_Built-in_Functions_(Static_Input)\">Method #1: Using Built-in Functions (Static Input)<\/h3>\n<p><strong>Approach:<\/strong><\/p>\n<ul>\n<li>Give the first string as static input and store it in a variable.<\/li>\n<li>Apply isalnum() function to the given first string that returns a value True if all of the characters are alphanumeric, which means they are alphabet letters (a-z) and numbers (0-9).<\/li>\n<li>Store it in another variable.<\/li>\n<li>Print the above-given String.<\/li>\n<li>Print the above-given String after applying isalnum() function.<\/li>\n<li>Similarly, do the same for other string and print the result string.<\/li>\n<li>The Exit of Program.<\/li>\n<\/ul>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Give the first string as static input and store it in a variable.\r\ngvn_fststr = \"pythonprograms\"\r\n# Apply isalnum() function to the given first string that returns a value\r\n# True if all of the characters are alphanumeric, which means they are alphabet\r\n# letters (a-z) and numbers (0-9).\r\n# Store it in another variable.\r\nrslt_str1 = gvn_fststr.isalnum()\r\n# Print the above given String\r\nprint(\"The above given first string is :\", gvn_fststr)\r\n# Print the above given String after applying isalnum() function.\r\nprint(\"The given first string after applying isalnum() function:\", rslt_str1)\r\n# Similarly do the same for other string and print the result string.\r\ngvn_scndstr = \"10345 @@@good morning\"\r\nrslt_str2 = gvn_scndstr.isalnum()\r\nprint(\"The above given second string is :\", gvn_scndstr)\r\nprint(\"The given second string after applying isalnum() function:\", rslt_str2)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">The above given first string is : pythonprograms\r\nThe given first string after applying isalnum() function: True\r\nThe above given second string is : 10345 @@@good morning\r\nThe given second string after applying isalnum() function: False<\/pre>\n<h3 id=\"Using_Built-in_Functions_(User_Input)\">Method #2: Using Built-in Functions (User Input)<\/h3>\n<p><strong>Approach:<\/strong><\/p>\n<ul>\n<li>Give the first string as user input using the input() function and store it in a variable.<\/li>\n<li>Apply isalnum() function to the given first string that returns a value True if all of the characters are alphanumeric, which means they are alphabet letters (a-z) and numbers (0-9).<\/li>\n<li>Store it in another variable.<\/li>\n<li>Print the above-given String.<\/li>\n<li>Print the above-given String after applying isalnum() function.<\/li>\n<li>Similarly, do the same for other string and print the result string.<\/li>\n<li>The Exit of Program.<\/li>\n<\/ul>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Give the first string as user input using the input() function and store it in a variable.\r\ngvn_fststr = input(\"Enter some Random String = \")\r\n# Apply isalnum() function to the given first string that returns a value\r\n# True if all of the characters are alphanumeric, which means they are alphabet\r\n# letters (a-z) and numbers (0-9).\r\n# Store it in another variable.\r\nrslt_str1 = gvn_fststr.isalnum()\r\n# Print the above given String\r\nprint(\"The above given first string is :\", gvn_fststr)\r\n# Print the above given String after applying isalnum() function.\r\nprint(\"The given first string after applying isalnum() function:\", rslt_str1)\r\n# Similarly do the same for other string and print the result string.\r\ngvn_scndstr = input(\"Enter some Random String = \")\r\nrslt_str2 = gvn_scndstr.isalnum()\r\nprint(\"The above given second string is :\", gvn_scndstr)\r\nprint(\"The given second string after applying isalnum() function:\", rslt_str2)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>Enter some Random String = hello this is python programming platform\r\nThe above given first string is : hello this is python programming platform\r\nThe given first string after applying isalnum() function: False\r\nEnter some Random String = hello123\r\nThe above given second string is : hello123\r\nThe given second string after applying isalnum() function: True<\/pre>\n<p>Go through our tutorial and learn about various <a href=\"https:\/\/python-programs.com\/python-built-in-functions\/#Python_String_Method_Examples\">Python String Method Examples<\/a> and learn how to apply the knowledge while dealing with strings.<\/p>\n<ul>\n<li><a href=\"https:\/\/python-programs.com\/python-string-count-method-with-examples\/\">Python String count() Method with Examples<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-string-endswith-method-with-examples\/\">Python String endswith() Method with Examples<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-string-expandtabs-method-with-examples\/\">Python String expandtabs() Method with Examples<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-string-find-method-with-examples\/\">Python String find() Method with Examples<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In the previous article, we have discussed Python Program for center() Function isalnum() Function in Python: The isalnum() method returns a value True if all of the characters are alphanumeric, which means they are alphabet letters (a-z) and numbers (0-9). (space)!#%&amp;? etc are examples of characters that are not alphanumeric. Syntax: string.isalnum() Parameters: This function &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/python-programs.com\/program-for-python-string-isalnum-method\/\"> <span class=\"screen-reader-text\">Program for Python String isalnum() Method<\/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>Program for Python String isalnum() Method - 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\/program-for-python-string-isalnum-method\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Program for Python String isalnum() Method - Python Programs\" \/>\n<meta property=\"og:description\" content=\"In the previous article, we have discussed Python Program for center() Function isalnum() Function in Python: The isalnum() method returns a value True if all of the characters are alphanumeric, which means they are alphabet letters (a-z) and numbers (0-9). 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