{"id":8109,"date":"2024-03-19T06:54:00","date_gmt":"2024-03-19T06:54:00","guid":{"rendered":"https:\/\/www.skillvertex.com\/blog\/?p=8109"},"modified":"2024-03-19T06:54:00","modified_gmt":"2024-03-19T06:54:00","slug":"python-copy-list","status":"publish","type":"post","link":"https:\/\/www.skillvertex.com\/blog\/python-copy-list\/","title":{"rendered":"Python Copy List"},"content":{"rendered":"\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\" id=\"rank-math-toc\"><p>Table of Contents<\/p><nav><ul><li ><a href=\"#what-is-the-list-copy-method-in-python\">What is the List Copy () Method in Python?<\/a><\/li><li ><a href=\"#what-is-list-copy-method-syntax-in-python\">What is List copy() Method Syntax in Python?<\/a><\/li><li ><a href=\"#how-to-create-the-simple-copy-of-a-list-in-python\">How to Create the Simple Copy of a List in Python?<\/a><\/li><li ><a href=\"#what-are-the-other-examples-of-the-list-copy-method\">What are the other Examples of the List copy() Method?<\/a><ul><li ><a href=\"#example-1-to-create-the-simple-list-copy\">Example 1: To create the Simple List Copy<\/a><\/li><li ><a href=\"#example-2-to-demonstrate-the-working-of-the-list-copy\">Example 2: To Demonstrate the working of the List copy()<\/a><\/li><\/ul><\/li><li ><a href=\"#what-are-shallow-copy-and-deep-copy\">What are Shallow Copy and Deep Copy?<\/a><ul><li ><a href=\"#example-to-show-the-techniques-of-shallow-and-deep-copy\">Example: To show the  techniques of Shallow and Deep copy<\/a><\/li><\/ul><\/li><li ><a href=\"#how-to-copy-list-using-the-slicing\">How to Copy List Using the Slicing?<\/a><\/li><li ><a href=\"#conclusion\">Conclusion<\/a><\/li><li ><a href=\"#python-copy-list-fa-qs\">Python Copy List-FAQs<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>The list Copy() method will help you to make a new shallow copy of the list. The article has listed the Python Copy List.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-the-list-copy-method-in-python\">What is the List Copy () Method in Python?<\/h2>\n\n\n\n<p>The<strong> list Copy ()<\/strong> <a href=\"https:\/\/www.skillvertex.com\/blog\/c-fopen-function-with-examples\/\" data-type=\"post\" data-id=\"3556\">function <\/a>will allow you to make a copy of the list in <a href=\"https:\/\/www.skillvertex.com\/blog\/python-loop-lists\/\" data-type=\"post\" data-id=\"8077\">Python<\/a>. It consists of two main ways to create a copy of the list, a Shallow copy and a Deep copy.<\/p>\n\n\n\n<p>Moreover, the<strong> list copy () <\/strong>function will make the copy of the <a href=\"https:\/\/www.skillvertex.com\/blog\/python-list-comprehension\/\" data-type=\"post\" data-id=\"8090\">list <\/a> and won&#8217;t affect the <a href=\"https:\/\/www.skillvertex.com\/blog\/how-to-pass-an-array-by-value-in-c\/\" data-type=\"post\" data-id=\"2638\">values <\/a>in the original list. So, it will provide the freedom to manipulate the <a href=\"https:\/\/www.skillvertex.com\/blog\/data-science-vs-data-analytics\/\" data-type=\"post\" data-id=\"4405\">data <\/a>without worrying about data loss.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-list-copy-method-syntax-in-python\">What is List copy() Method Syntax in Python?<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>list.copy()\n\n<\/code><\/pre>\n\n\n\n<p>Parameters<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The copy method won&#8217;t take any parameters.<\/li>\n<\/ul>\n\n\n\n<p>Returns: It will return the shallow copy of the list.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-create-the-simple-copy-of-a-list-in-python\">How to Create the Simple Copy of a List in Python?<\/h2>\n\n\n\n<p>In Python, it is possible to create and copy a new <a href=\"https:\/\/www.skillvertex.com\/blog\/python-add-list-items\/\" data-type=\"post\" data-id=\"8058\">list <\/a>with the help of the <strong>copy() function <\/strong>. Let us look into the example given below.<\/p>\n\n\n\n<p>Example<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Original list\noriginal_list = &#91;1, 2, 3, 4, 5]\n\n# Copying the list using slicing\ncopied_list = original_list&#91;:]\n\n# Modifying the copied list\ncopied_list.append(6)\n\n# Printing both lists\nprint(\"Original List:\", original_list)\nprint(\"Copied List:\", copied_list)\n<\/code><\/pre>\n\n\n\n<p>Output<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Original List: &#91;1, 2, 3, 4, 5]\nCopied List: &#91;1, 2, 3, 4, 5, 6]\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-are-the-other-examples-of-the-list-copy-method\">What are the other Examples of the List copy() Method?<\/h2>\n\n\n\n<p>Let us look into the examples given below of the List Copy method.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"example-1-to-create-the-simple-list-copy\"><strong>Example 1<\/strong>: To create the Simple List Copy<\/h3>\n\n\n\n<p>The example provided below has allowed us to create the list of <a href=\"https:\/\/www.skillvertex.com\/blog\/python-string-methods\/\" data-type=\"post\" data-id=\"7928\">Python strings<\/a> with the help of the copy method which is used to copy the list to another <a href=\"https:\/\/www.skillvertex.com\/blog\/how-to-print-a-variable-name-in-c\/\" data-type=\"post\" data-id=\"3299\">variable<\/a>.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Creating a list of strings\noriginal_list = &#91;\"apple\", \"banana\", \"cherry\", \"date\"]\n\n# Copying the list using the copy() method\ncopied_list = original_list.copy()\n\n# Modifying the copied list\ncopied_list.append(\"elderberry\")\n\n# Printing both lists\nprint(\"Original List:\", original_list)\nprint(\"Copied List:\", copied_list)\n<\/code><\/pre>\n\n\n\n<p>Output<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Original List: &#91;'apple', 'banana', 'cherry', 'date']\nCopied List: &#91;'apple', 'banana', 'cherry', 'date', 'elderberry']\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"example-2-to-demonstrate-the-working-of-the-list-copy\"><strong>Example 2<\/strong>: To Demonstrate the working of the List copy()<\/h3>\n\n\n\n<p>The example below will illustrate how to make the  <a href=\"https:\/\/www.skillvertex.com\/blog\/python-interview-questions\/\" data-type=\"post\" data-id=\"3614\">Python <\/a>List and then make the <strong>shallow copy<\/strong> with the help of the copy() function. <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Creating a Python list\noriginal_list = &#91;1, &#91;2, 3], 4, &#91;5, 6]]\n\n# Making a shallow copy using the copy() function\ncopied_list = original_list.copy()\n\n# Modifying the copied list\ncopied_list&#91;1]&#91;0] = 10\n\n# Printing both lists\nprint(\"Original List:\", original_list)\nprint(\"Copied List:\", copied_list)\n<\/code><\/pre>\n\n\n\n<p>Output<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Original List: &#91;1, &#91;10, 3], 4, &#91;5, 6]]\nCopied List: &#91;1, &#91;10, 3], 4, &#91;5, 6]]\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-are-shallow-copy-and-deep-copy\">What are Shallow Copy and Deep Copy?<\/h2>\n\n\n\n<p>The<strong> Deep copy <\/strong>will be referred to as the copy of the <a href=\"https:\/\/www.skillvertex.com\/blog\/python-change-list-item\/\" data-type=\"post\" data-id=\"8045\">list<\/a>, where it will add the element to any of the lists. So, only that list will be altered. Whereas, the <strong>Shallow&nbsp;copy<\/strong> will form the new array, but it won&#8217;t create new copies of the elements within the array.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"example-to-show-the-techniques-of-shallow-and-deep-copy\"><strong>Example<\/strong>: To show the  techniques of Shallow and Deep copy<\/h3>\n\n\n\n<p>The <a href=\"https:\/\/www.skillvertex.com\/blog\/assignment-operators-in-python\/\" data-type=\"post\" data-id=\"6970\">assignment operator<\/a>, list copy() method, and copy.copy() <a href=\"https:\/\/www.skillvertex.com\/blog\/which-class-provides-many-methods-for-graphics-programming\/\" data-type=\"post\" data-id=\"2583\">method <\/a>will allow us to create the list and the shallow copy.<\/p>\n\n\n\n<p>Hence, a deep copy will be made using the deep copy() in Python. Hence,  it will create changes to the original list and check if the other <a href=\"https:\/\/www.skillvertex.com\/blog\/python-remove-list-items\/\" data-type=\"post\" data-id=\"8071\">list <\/a>is affected or not.<\/p>\n\n\n\n<p><strong>Example:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import copy\n\n# Creating a list with nested lists\noriginal_list = &#91;1, &#91;2, 3], 4, &#91;5, 6]]\n\n# Shallow copy\nshallow_copied_list = copy.copy(original_list)\n\n# Deep copy\ndeep_copied_list = copy.deepcopy(original_list)\n\n# Modifying the copied lists\nshallow_copied_list&#91;1]&#91;0] = 10\ndeep_copied_list&#91;1]&#91;0] = 20\n\n# Printing all lists\nprint(\"Original List:\", original_list)\nprint(\"Shallow Copied List:\", shallow_copied_list)\nprint(\"Deep Copied List:\", deep_copied_list)\n<\/code><\/pre>\n\n\n\n<p>Output<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Original List: &#91;1, &#91;2, 3], 4, &#91;5, 6]]\nShallow Copied List: &#91;1, &#91;10, 3], 4, &#91;5, 6]]\nDeep Copied List: &#91;1, &#91;20, 3], 4, &#91;5, 6]]\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-copy-list-using-the-slicing\">How to Copy List Using the Slicing?<\/h2>\n\n\n\n<p>It is possible to copy the <a href=\"https:\/\/www.skillvertex.com\/blog\/python-lists\/\" data-type=\"post\" data-id=\"7938\">list <\/a>using the list<a href=\"https:\/\/www.skillvertex.com\/blog\/python-slice-string\/\" data-type=\"post\" data-id=\"7568\"> slicing method <\/a>and then, we are providing the &#8216;a&#8217; to the new <a href=\"https:\/\/www.skillvertex.com\/blog\/python-remove-list-items\/\" data-type=\"post\" data-id=\"8071\">list<\/a>. Let us look into the example below:<\/p>\n\n\n\n<p><strong>Example<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Original list\noriginal_list = &#91;1, 2, 3, 4, 5]\n\n# Copying the list using slicing\ncopied_list = original_list&#91;:]\n\n# Modifying the copied list\ncopied_list.append(6)\n\n# Printing both lists\nprint(\"Original List:\", original_list)\nprint(\"Copied List:\", copied_list)\n<\/code><\/pre>\n\n\n\n<p>Output<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Original List: &#91;1, 2, 3, 4, 5]\nCopied List: &#91;1, 2, 3, 4, 5, 6]\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">Conclusion<\/h2>\n\n\n\n<p>To sum up, In Python, copying lists is crucial for maintaining data integrity and avoiding unintended side effects. There are several methods to copy lists, including slicing, the copy() method, shallow copying, and deep copying.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"python-copy-list-fa-qs\">Python Copy List-FAQs<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1710398420750\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Q1.What is a copy () in Python?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Ans. Python set copy function will provide you the shallow copy of the set as output.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1710398428561\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Q2.How do I copy a list of lists?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Ans. It is possible to copy the list using the built-in list method copy().<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1710398436591\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Q3.How do you sort and copy a list in Python?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Ans.The sort() method will sort the list and replace the original list. However, the sorted list will return the sorted copy of the list without making any changes to the original list.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The list Copy() method will help you to make a new shallow copy of the list. The article has listed the Python Copy List. What is the List Copy () Method in Python? The list Copy () function will allow you to make a copy of the list in Python. It consists of two main &#8230; <a title=\"Python Copy List\" class=\"read-more\" href=\"https:\/\/www.skillvertex.com\/blog\/python-copy-list\/\" aria-label=\"More on Python Copy List\">Read more<\/a><\/p>\n","protected":false},"author":4,"featured_media":8119,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[864],"tags":[57,974,945,964,866],"class_list":["post-8109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-tutorial","tag-python","tag-python-copy-list","tag-python-function","tag-python-list","tag-python-tutorial","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"_links":{"self":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts\/8109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/comments?post=8109"}],"version-history":[{"count":16,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts\/8109\/revisions"}],"predecessor-version":[{"id":8297,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts\/8109\/revisions\/8297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/media\/8119"}],"wp:attachment":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/media?parent=8109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/categories?post=8109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/tags?post=8109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}