{"id":2532,"date":"2023-10-18T16:48:45","date_gmt":"2023-10-18T11:18:45","guid":{"rendered":"https:\/\/python-programs.com\/?p=2532"},"modified":"2023-11-10T11:47:06","modified_gmt":"2023-11-10T06:17:06","slug":"how-to-create-and-initialize-a-list-of-lists-in-python","status":"publish","type":"post","link":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/","title":{"rendered":"How to Create and Initialize a List of Lists in Python?"},"content":{"rendered":"<p>Lists are similar to dynamically sized arrays, which are declared in other languages(e.g., vector in C++ and ArrayList in Java). Lists do not have to be homogeneous all of the time, which makes it a very useful tool in Python. DataTypes such as Integers, Strings, and Objects can all be included in a single list. Lists are mutable, which means they can be changed after they&#8217;ve been created.<\/p>\n<p>In Python, a list of lists is a list object with each list element being a separate list.<\/p>\n<p>Given the size,<\/p>\n<p>The task is to create and Initialize a list of lists\u00a0 of given size in Python using different methods.<\/p>\n<p><strong>Examples:<\/strong><\/p>\n<p><strong>Input : <\/strong><\/p>\n<pre>Size=4\r\n<\/pre>\n<p><strong>Output :<\/strong><\/p>\n<pre>[ [ ] , [ ] , [ ] , [ ] ]<\/pre>\n<h2>Creating list of lists with the same ID(Not Preferable):<\/h2>\n<p>Below is the fastest way to build and initialize a list of lists with the same ID.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Let us take size as 4\r\nlistoflists = [[]]*4 \r\n# print the listoflists \r\nprint(\"List of Lists : \", listoflists) \r\n# Print the ID's of all elements in this listoflists \r\nprint(\"ID's : \") \r\nfor element in listoflists: \r\n    print(id(element))<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>List of Lists :  [[], [], [], []]\r\nID's : \r\n140398466447368\r\n140398466447368\r\n140398466447368\r\n140398466447368<\/pre>\n<p><strong>Explanation:<\/strong><\/p>\n<p>Here List of Lists of size 4 is created but we can see all are having same Id. This will result in the list containing the same list object repeated N times and cause referencing errors.<\/p>\n<h3>Creating list of lists with the different ID&#8217;s:<\/h3>\n<p>It is most preferable because all the lists will have different ID&#8217;s such that we can access and refer them separately.<\/p>\n<p>There are several ways to create list of lists some of them are:<\/p>\n<ul>\n<li><a href=\"#Using_List_Comprehension_,_range()_and_Append()\">Using List Comprehension , range() and Append()<\/a><\/li>\n<li><a href=\"#Using_For_loop_and_Append()\">Using For loop and Append()<\/a><\/li>\n<li><a href=\"#Using_Itertools\">Using Itertools<\/a><\/li>\n<li><a href=\"#Using_empty()_in_Numpy\">Using empty() in Numpy<\/a><\/li>\n<\/ul>\n<h3 id=\"Using_List_Comprehension_,_range()_and_Append()\">Method #1: Using List Comprehension , range() and Append()<\/h3>\n<p>Using<strong> list comprehensions<\/strong> is the most Pythonic way to build an empty list of lists.<\/p>\n<p>This can be accomplished in the following way:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Driver code\r\n# let us take size of list as 4\r\nsize = 4\r\n# Creating listoflists using list comprehension\r\nlistoflists = [[] for i in range(size)]\r\n# Printing empty listoflists\r\nprint(\"List of Lists :\", listoflists)\r\n\r\nprint(\"ID : \")\r\n\r\n# Printing the ID's of all sublists\r\nfor element in listoflists:\r\n    print(id(element))\r\n\r\n# Initializing list of lists\r\n# let us initialize element in 2 nd sublist\r\nlistoflists[1].append(3)\r\n\r\n# printing list after initialization\r\nprint(\"List of Lists :\", listoflists)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>List of Lists : [[], [], [], []]\r\nID : \r\n140259187390280\r\n140259187390024\r\n140259187390088\r\n140259187390152\r\nList of Lists : [[], [3], [], []]<\/pre>\n<p><strong>Explanation:<\/strong><\/p>\n<p>Here we created list of lists of size 4, with different IDs for each sublist. \u00a0As a result, we can refer to them and initialise them separately.<\/p>\n<p>We initialized second sublist with element 3.<\/p>\n<h3 id=\"Using_For_loop_and_Append()\">Method #2 : \u00a0Using For loop and Append()<\/h3>\n<p>Let&#8217;s say we want to make a list that includes 4 separate sub-lists.<\/p>\n<p>To do so, we&#8217;ll first construct a new empty list, then use a for loop to iterate from 0 to 3 and add an empty list<\/p>\n<p>to the new list for each iteration.<\/p>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Driver code\r\n# let us take size of list as 4\r\nsize = 4\r\n# Taking empty listoflists\r\nlistoflists = []\r\n# Iterate over a sequence of numbers from 0 to size\r\nfor i in range(size):\r\n    listoflists.append([])\r\n\r\n# Printing empty listoflists\r\nprint(\"List of Lists :\", listoflists)\r\n\r\nprint(\"ID : \")\r\n\r\n# Printing the ID's of all sublists\r\nfor element in listoflists:\r\n    print(id(element))\r\n\r\n# Initializing list of lists\r\n# let us initialize element in 2 nd sublist\r\nlistoflists[1].append(3)\r\n\r\n# printing list after initialization\r\nprint(\"List of Lists :\", listoflists)\r\n<\/pre>\n<p><strong>Output :<\/strong><\/p>\n<pre>List of Lists : [[], [], [], []]\r\nID : \r\n140629449111368\r\n140629449111240\r\n140629449111304\r\n140629449111176\r\nList of Lists : [[], [3], [], []]<\/pre>\n<h3 id=\"Using_Itertools\">Method #3: Using Itertools<\/h3>\n<p>The repeat() function in the itertools module can be used to replace the range() function in the above list comprehension.<\/p>\n<p><strong>Below is the implementation<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># import repeat from itertools\r\nfrom itertools import repeat\r\n# let us take size of list as 4\r\nsize = 4\r\n# Creating listoflists using list comprehension\r\nlistoflists = [[] for i in repeat(None, size)]\r\n# Printing empty listoflists\r\nprint(\"List of Lists :\", listoflists)\r\n\r\nprint(\"ID : \")\r\n\r\n# Printing the ID's of all sublists\r\nfor element in listoflists:\r\n    print(id(element))\r\n\r\n# Initializing list of lists\r\n# let us initialize element in 2 nd sublist\r\nlistoflists[1].append(3)\r\n\r\n# printing list after initialization\r\nprint(\"List of Lists :\", listoflists)\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">List of Lists : [[], [], [], []]\r\nID : \r\n140551299438408\r\n140551299438152\r\n140551299438216\r\n140551299438280\r\nList of Lists : [[], [3], [], []]<\/pre>\n<h3 id=\"Using_empty()_in_Numpy\">Method #4 : Using empty() in Numpy<\/h3>\n<p>The empty() function in the Numpy module in Python creates an empty Numpy array of a given shape<\/p>\n<p><code class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">numpy.empty(shape, dtype=float, order='C')<\/code><\/p>\n<p>It creates a new Numpy array of the specified shape.<br \/>\nNow, to generate a list of lists, we&#8217;ll use the empty() function to create a 2D Numpy array, which we&#8217;ll then transform to a list of lists using the numpy.tolist() function.<\/p>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># importing numpy module\r\nimport numpy\r\n\r\n# let us take size of list as 4\r\nsize = 4\r\n\r\n# Create a 2D Numpy array of shape (4, 0) and convert it to list of lists\r\nlistoflists = numpy.empty((size, 0)).tolist()\r\n\r\n# Printing empty listoflists\r\nprint(\"List of Lists :\", listoflists)\r\n\r\nprint(\"ID : \")\r\n\r\n# Printing the ID's of all sublists\r\n\r\nfor element in listoflists:\r\n    print(id(element))\r\n\r\n# Initializing list of lists\r\n\r\n# let us initialize element in 2 nd sublist\r\n\r\nlistoflists[1].append(3)\r\n\r\n# printing list after initialization\r\n\r\nprint(\"List of Lists :\", listoflists)\r\n<\/pre>\n<p><strong>Note:<\/strong> This method performance is often slower than the list comprehension.<br \/>\n<strong>Related Programs<\/strong>:<\/p>\n<ul>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-create-a-list-and-initialize-with-same-values\/\">python how to create a list and initialize with same values<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-create-a-list-of-all-the-keys-in-the-dictionary\/\">python how to create a list of all the keys in the dictionary<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-create-a-list-of-all-the-values-in-a-dictionary\/\">python how to create a list of all the values in a dictionary<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-find-all-indexes-of-an-item-in-a-list\/\">python how to find all indexes of an item in a list<\/li>\n<li><a href=\"https:\/\/python-programs.com\/how-to-create-and-add-elements-in-a-hashset-in-java\/\">how to create and add elements in a hashset in java<\/li>\n<li><a href=\"https:\/\/python-programs.com\/what-is-a-structured-numpy-array-and-how-to-create-and-sort-it-in-python\/\">what is a structured numpy array and how to create and sort it in python<\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-how-to-get-the-list-of-all-files-in-a-zip-archive\/\">python how to get the list of all files in a zip archive<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Lists are similar to dynamically sized arrays, which are declared in other languages(e.g., vector in C++ and ArrayList in Java). Lists do not have to be homogeneous all of the time, which makes it a very useful tool in Python. DataTypes such as Integers, Strings, and Objects can all be included in a single list. &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/\"> <span class=\"screen-reader-text\">How to Create and Initialize a List of Lists in Python?<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":7,"featured_media":6758,"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>How to Create and Initialize a List of Lists in Python? - 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\/how-to-create-and-initialize-a-list-of-lists-in-python\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Create and Initialize a List of Lists in Python? - Python Programs\" \/>\n<meta property=\"og:description\" content=\"Lists are similar to dynamically sized arrays, which are declared in other languages(e.g., vector in C++ and ArrayList in Java). Lists do not have to be homogeneous all of the time, which makes it a very useful tool in Python. DataTypes such as Integers, Strings, and Objects can all be included in a single list. &hellip; How to Create and Initialize a List of Lists in Python? Read More &raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Python Programs\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/btechgeeks\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-18T11:18:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-10T06:17:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@btech_geeks\" \/>\n<meta name=\"twitter:site\" content=\"@btech_geeks\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vikram Chiluka\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/python-programs.com\/#organization\",\"name\":\"BTech Geeks\",\"url\":\"https:\/\/python-programs.com\/\",\"sameAs\":[\"https:\/\/www.instagram.com\/btechgeeks\/\",\"https:\/\/www.linkedin.com\/in\/btechgeeks\",\"https:\/\/in.pinterest.com\/btechgeek\/\",\"https:\/\/www.youtube.com\/channel\/UC9MlCqdJ3lKqz2p5114SDIg\",\"https:\/\/www.facebook.com\/btechgeeks\",\"https:\/\/twitter.com\/btech_geeks\"],\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/python-programs.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/python-programs.com\/wp-content\/uploads\/2020\/11\/BTechGeeks.png\",\"contentUrl\":\"https:\/\/python-programs.com\/wp-content\/uploads\/2020\/11\/BTechGeeks.png\",\"width\":350,\"height\":70,\"caption\":\"BTech Geeks\"},\"image\":{\"@id\":\"https:\/\/python-programs.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/python-programs.com\/#website\",\"url\":\"https:\/\/python-programs.com\/\",\"name\":\"Python Programs\",\"description\":\"Python Programs with Examples, How To Guides on Python\",\"publisher\":{\"@id\":\"https:\/\/python-programs.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/python-programs.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#primaryimage\",\"url\":\"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png\",\"contentUrl\":\"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png\",\"width\":1280,\"height\":720,\"caption\":\"How to Create and Initialize a List of Lists\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#webpage\",\"url\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/\",\"name\":\"How to Create and Initialize a List of Lists in Python? - Python Programs\",\"isPartOf\":{\"@id\":\"https:\/\/python-programs.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#primaryimage\"},\"datePublished\":\"2023-10-18T11:18:45+00:00\",\"dateModified\":\"2023-11-10T06:17:06+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/python-programs.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Create and Initialize a List of Lists in Python?\"}]},{\"@type\":\"Article\",\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#webpage\"},\"author\":{\"@id\":\"https:\/\/python-programs.com\/#\/schema\/person\/fb109fd98e2d5a15fd4dac9970797602\"},\"headline\":\"How to Create and Initialize a List of Lists in Python?\",\"datePublished\":\"2023-10-18T11:18:45+00:00\",\"dateModified\":\"2023-11-10T06:17:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#webpage\"},\"wordCount\":557,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/python-programs.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png\",\"articleSection\":[\"Python\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#respond\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/python-programs.com\/#\/schema\/person\/fb109fd98e2d5a15fd4dac9970797602\",\"name\":\"Vikram Chiluka\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/python-programs.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/c56c77f578d45de43af6feb443618ed7?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/c56c77f578d45de43af6feb443618ed7?s=96&d=mm&r=g\",\"caption\":\"Vikram Chiluka\"},\"url\":\"https:\/\/python-programs.com\/author\/vikram\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Create and Initialize a List of Lists in Python? - Python Programs","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/","og_locale":"en_US","og_type":"article","og_title":"How to Create and Initialize a List of Lists in Python? - Python Programs","og_description":"Lists are similar to dynamically sized arrays, which are declared in other languages(e.g., vector in C++ and ArrayList in Java). Lists do not have to be homogeneous all of the time, which makes it a very useful tool in Python. DataTypes such as Integers, Strings, and Objects can all be included in a single list. &hellip; How to Create and Initialize a List of Lists in Python? Read More &raquo;","og_url":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/","og_site_name":"Python Programs","article_publisher":"https:\/\/www.facebook.com\/btechgeeks","article_published_time":"2023-10-18T11:18:45+00:00","article_modified_time":"2023-11-10T06:17:06+00:00","og_image":[{"width":1280,"height":720,"url":"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_creator":"@btech_geeks","twitter_site":"@btech_geeks","twitter_misc":{"Written by":"Vikram Chiluka","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Organization","@id":"https:\/\/python-programs.com\/#organization","name":"BTech Geeks","url":"https:\/\/python-programs.com\/","sameAs":["https:\/\/www.instagram.com\/btechgeeks\/","https:\/\/www.linkedin.com\/in\/btechgeeks","https:\/\/in.pinterest.com\/btechgeek\/","https:\/\/www.youtube.com\/channel\/UC9MlCqdJ3lKqz2p5114SDIg","https:\/\/www.facebook.com\/btechgeeks","https:\/\/twitter.com\/btech_geeks"],"logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/python-programs.com\/#\/schema\/logo\/image\/","url":"https:\/\/python-programs.com\/wp-content\/uploads\/2020\/11\/BTechGeeks.png","contentUrl":"https:\/\/python-programs.com\/wp-content\/uploads\/2020\/11\/BTechGeeks.png","width":350,"height":70,"caption":"BTech Geeks"},"image":{"@id":"https:\/\/python-programs.com\/#\/schema\/logo\/image\/"}},{"@type":"WebSite","@id":"https:\/\/python-programs.com\/#website","url":"https:\/\/python-programs.com\/","name":"Python Programs","description":"Python Programs with Examples, How To Guides on Python","publisher":{"@id":"https:\/\/python-programs.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/python-programs.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#primaryimage","url":"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png","contentUrl":"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png","width":1280,"height":720,"caption":"How to Create and Initialize a List of Lists"},{"@type":"WebPage","@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#webpage","url":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/","name":"How to Create and Initialize a List of Lists in Python? - Python Programs","isPartOf":{"@id":"https:\/\/python-programs.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#primaryimage"},"datePublished":"2023-10-18T11:18:45+00:00","dateModified":"2023-11-10T06:17:06+00:00","breadcrumb":{"@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/python-programs.com\/"},{"@type":"ListItem","position":2,"name":"How to Create and Initialize a List of Lists in Python?"}]},{"@type":"Article","@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#article","isPartOf":{"@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#webpage"},"author":{"@id":"https:\/\/python-programs.com\/#\/schema\/person\/fb109fd98e2d5a15fd4dac9970797602"},"headline":"How to Create and Initialize a List of Lists in Python?","datePublished":"2023-10-18T11:18:45+00:00","dateModified":"2023-11-10T06:17:06+00:00","mainEntityOfPage":{"@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#webpage"},"wordCount":557,"commentCount":0,"publisher":{"@id":"https:\/\/python-programs.com\/#organization"},"image":{"@id":"https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#primaryimage"},"thumbnailUrl":"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png","articleSection":["Python"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/python-programs.com\/how-to-create-and-initialize-a-list-of-lists-in-python\/#respond"]}]},{"@type":"Person","@id":"https:\/\/python-programs.com\/#\/schema\/person\/fb109fd98e2d5a15fd4dac9970797602","name":"Vikram Chiluka","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/python-programs.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/c56c77f578d45de43af6feb443618ed7?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c56c77f578d45de43af6feb443618ed7?s=96&d=mm&r=g","caption":"Vikram Chiluka"},"url":"https:\/\/python-programs.com\/author\/vikram\/"}]}},"jetpack_featured_media_url":"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/04\/How-to-Create-and-Initialize-a-List-of-Lists.png","_links":{"self":[{"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/posts\/2532"}],"collection":[{"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/comments?post=2532"}],"version-history":[{"count":13,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/posts\/2532\/revisions"}],"predecessor-version":[{"id":11737,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/posts\/2532\/revisions\/11737"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/media\/6758"}],"wp:attachment":[{"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/media?parent=2532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/categories?post=2532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/python-programs.com\/wp-json\/wp\/v2\/tags?post=2532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}