{"id":3538,"date":"2021-04-26T09:46:53","date_gmt":"2021-04-26T04:16:53","guid":{"rendered":"https:\/\/python-programs.com\/?p=3538"},"modified":"2021-11-22T18:43:05","modified_gmt":"2021-11-22T13:13:05","slug":"python-set-remove-vs-discard-vs-pop","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-set-remove-vs-discard-vs-pop\/","title":{"rendered":"Python Set: remove() vs discard() vs pop()"},"content":{"rendered":"<p>A Python set is a list of things that are not in any particular order. &#8211; element in the set must be unique and immutable, and duplicate elements are removed from the sets. Sets are mutable, which means we can change them after they&#8217;ve been formed.<\/p>\n<p>Unlike other Python sets, the elements of the set have no index, which means we can&#8217;t access any element of the set directly using the index. We may, however, print them all together or loop through the collection to get the list of elements.<\/p>\n<p><strong>Example:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre><span class=\"enlighter-text\">givenset= <\/span><span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-s0\">'This'<\/span><span class=\"enlighter-text\">, <\/span><span class=\"enlighter-s0\">'is'<\/span><span class=\"enlighter-text\">, <\/span><span class=\"enlighter-s0\">'BTechGeeks'<\/span><span class=\"enlighter-g1\">} element='is'\r\n<\/span><\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">{'BTechGeeks', 'this'}<\/pre>\n<h2>Remove a element from the Set<\/h2>\n<p>There are several ways to remove a element from the set some of them are:<\/p>\n<ul>\n<li><a href=\"#Using_discard()_function\">Using discard() function<\/a><\/li>\n<li><a href=\"#Using_remove()_function\">Using remove() function<\/a><\/li>\n<li><a href=\"#Using_pop()_function\">Using pop() function<\/a><\/li>\n<\/ul>\n<h3 id=\"Using_discard()_function\">Method #1:Using discard() function<\/h3>\n<p>In Python, the built-in method discard() removes an element from a collection only if it is already present. If the element is missing from the list, no error or exception is thrown, and the original set is printed.<br \/>\n<strong>Implementing the discard() function if the element is present in the set:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># given set\r\ngivenset = {'this', 'is', 'BTechGeeks'}\r\n# given element\r\nelement = 'is'\r\n# removing element which is in set using discard function.\r\ngivenset.discard(element)\r\n# printing the set\r\nprint(givenset)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">{'BTechGeeks', 'this'}<\/pre>\n<p><strong>Implementing the discard() function if the element is not present in the set:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># given set\r\ngivenset = {'this', 'is', 'BTechGeeks'}\r\n# given element\r\nelement = 'hello'\r\n# removing element which is not in set using discard function.\r\ngivenset.discard(element)\r\n# printing the set\r\nprint(givenset)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">{'is', 'this', 'BTechGeeks'}<\/pre>\n<h3 id=\"Using_remove()_function\">Method #2:Using remove() function<\/h3>\n<p>In Python, the built-in method remove() removes an element from a set only if it is already present, similar to how the discard() method removes an element from a set. If the element is missing from the list, an error or exception is thrown.<\/p>\n<p><strong>Implementing the remove() function if the element is present in the set:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># given set\r\ngivenset = {'this', 'is', 'BTechGeeks'}\r\n# given element\r\nelement = 'is'\r\n# removing element which is in set using remove() function.\r\ngivenset.remove(element)\r\n# printing the set\r\nprint(givenset)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">{'BTechGeeks', 'this'}<\/pre>\n<p><strong>Implementing the remove() function if the element is not present in the set:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># given set\r\ngivenset = {'this', 'is', 'BTechGeeks'}\r\n# given element\r\nelement = 'hello'\r\n# removing element which is not in set using remove() function.\r\ngivenset.remove(element)\r\n# printing the set\r\nprint(givenset)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">Traceback (most recent call last):\r\n  File \"\/home\/ebe45b71f9f465d547ea9cb944ebe071.py\", line 6, in &lt;module&gt;\r\n    givenset.remove(element)\r\nKeyError: 'hello'<\/pre>\n<h3 id=\"Using_pop()_function\">Method #3:Using pop() function<\/h3>\n<p>This operation takes an arbitrary element from the set and returns it.<br \/>\nIt throws a KeyError if there are no elements to delete.<\/p>\n<p><strong>Implementing the pop() function if the element is present in the set:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># given set\r\ngivenset = {'this', 'is', 'BTechGeeks'}\r\n# removing random element which is  in set using pop() function.\r\ngivenset.pop()\r\n# printing the set\r\nprint(givenset)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">{'is', 'BTechGeeks'}<\/pre>\n<h3><\/h3>\n<p>&nbsp;<\/p>\n<p>&nbsp;<br \/>\n<strong>Related Programs<\/strong>:<\/p>\n<ul>\n<li><a href=\"https:\/\/python-programs.com\/remove-a-key-from-dictionary-in-python-del-vs-dict-pop-vs-comprehension\/\">remove a key from dictionary in python del vs dict pop vs comprehension<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-set-remove-vs-discard-vs-pop\/\">python set remove vs discard vs pop<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-copy-a-dictionary-shallow-copy-vs-deep-copy\/\">python how to copy a dictionary shallow copy vs deep copy<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-add-an-element-in-list-append-vs-extend\/\">python how to add an element in list append vs extend<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-set-add-vs-update\/\">python set add vs update<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-compare-strings-ignore-case-regex-is-vs-operator\/\">python how to compare strings ignore case regex is vs operator<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-list-comprehension-vs-generator-expression-explained-with-examples\/\">python list comprehension vs generator expression explained with examples<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A Python set is a list of things that are not in any particular order. &#8211; element in the set must be unique and immutable, and duplicate elements are removed from the sets. Sets are mutable, which means we can change them after they&#8217;ve been formed. Unlike other Python sets, the elements of the set &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/python-programs.com\/python-set-remove-vs-discard-vs-pop\/\"> <span class=\"screen-reader-text\">Python Set: remove() vs discard() vs pop()<\/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 Set: remove() vs discard() vs pop() - 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-set-remove-vs-discard-vs-pop\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Set: remove() vs discard() vs pop() - Python Programs\" \/>\n<meta property=\"og:description\" content=\"A Python set is a list of things that are not in any particular order. &#8211; element in the set must be unique and immutable, and duplicate elements are removed from the sets. 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