{"id":3779,"date":"2017-09-27T01:53:43","date_gmt":"2017-09-27T01:53:43","guid":{"rendered":"http:\/\/www.jquery-az.com\/?p=3779"},"modified":"2023-11-01T16:27:26","modified_gmt":"2023-11-01T16:27:26","slug":"3-ways-convert-python-list-string-join-map-str","status":"publish","type":"post","link":"https:\/\/www.jquery-az.com\/3-ways-convert-python-list-string-join-map-str\/","title":{"rendered":"Convert a List to String in Python"},"content":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-11056\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2017\/09\/Convert-a-List-to-String-in-Python.jpg\" alt=\"An illustration showing different methods to convert a Python list into a string, including using the 'join()' method, list comprehension, map() function. Examples are also given for different ways. \" width=\"700\" height=\"600\" srcset=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2017\/09\/Convert-a-List-to-String-in-Python.jpg 700w, https:\/\/www.jquery-az.com\/wp-content\/uploads\/2017\/09\/Convert-a-List-to-String-in-Python-300x257.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<div class=\"bullet-1\">\n<p>In this tutorial, we will explain three ways of converting a list to a string in Python. These are:<\/p>\n<ul>\n<li>join method<\/li>\n<li>str\/join combination<\/li>\n<li>map() function<\/li>\n<\/ul>\n<\/div>\n<p>If your <a href=\"\/python-list-12-examples-to-learn-with-built-in-methods\/\">list<\/a> contains only string objects then you may use the <strong>join() <\/strong>method to convert the list objects into a string.<\/p>\n<p>Suppose, we have the following list:<\/p>\n<div class=\"codesdiv1\">lst_to_string = [&#8216;The&#8217;,&#8217;Python&#8217;,&#8217;Tutorials&#8217;]<\/div>\n<p>This is how you may use the <a href=\"\/understand-python-string-join-5-examples-list-set-tuples\/\">join<\/a> method:<\/p>\n<div class=\"codesdiv1\">str_join = &#8221; &#8220;.join(lst_to_string)<\/div>\n<div>\n<\/div>\n<div><\/div>\n<div class=\"note-tips1\"><strong>Note that,<\/strong> The <a href=\"https:\/\/www.jquery-az.com\/understand-python-string-join-5-examples-list-set-tuples\/\">Python join<\/a> method concatenates the string of a given sequence. The join() function is not specific to the list only. You may apply it to other sequences e.g. <a href=\"\/python-tuple-explained-with-9-examples\/\">tuple<\/a>, range, etc.<\/p>\n<p>Learn more about join() function <a href=\"\/understand-python-string-join-5-examples-list-set-tuples\/\">here<\/a><\/div>\n<h3><strong>First way &#8211; an example of list to string Python using join<\/strong><\/h3>\n<p>The join() takes a string <strong>separator<\/strong> e.g. space, comma, etc., and joins the elements of the given sequence \u2013 a list in that case.<\/p>\n<p>See this example, where we used the above list and converted this to strings by using the join() method. The separator is a <strong>comma<\/strong>:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">#An example of list to string conversion\r\n\r\nlst_to_string = ['The','Python','Tutorials']\r\n\r\nstr_join = \",\".join(lst_to_string)\r\n\r\nprint (\"After join:\",str_join)<\/pre>\n<p><strong>The output:<\/strong><\/p>\n<div class=\"codeoutput\">After join: The,Python,Tutorials<\/div>\n<h3><strong>Second way &#8211; using str() function <\/strong><\/h3>\n<p>What if a list contains integers, float, or mixed objects?<\/p>\n<p>If your list contains mixed elements like strings, integers, and floats then join() method will produce an error.<\/p>\n<p>The solution to this situation is using the <em><strong>str()<\/strong><\/em> function for converting the integers to strings and then using the join method with the separator.<\/p>\n<p>See this example where a list is created with mixed elements. It contains strings, integer,s and float objects.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">#An example of list to string conversion\r\n\r\nlst_mixed = [10, 'The','Python','Tutorials',15.5]\r\n\r\nstr_join = \" \".join(str(x) for x in lst_mixed)\r\n\r\nprint (\"After str and join:\",str_join)<\/pre>\n<p><strong>The output<\/strong><\/p>\n<div class=\"codeoutput\">After str and join: 10 The Python Tutorials 15.5<\/div>\n<p>In the output, you can see the integer and float object displayed along with string objects by a space separator.<\/p>\n<h3><strong>Third way: using the map function<\/strong><\/h3>\n<p>Another trick for achieving the conversion of the list to string <a href=\"\/learn-python-map-3-examples-list-lambda\/\">is using the map function<\/a> with join. The map function takes a function and applies it to iterable which can be a list, <a href=\"\/python-tuple-explained-with-9-examples\/\">tuple<\/a>, etc.<\/p>\n<p>The map function returns a list of the results after applying that function to the iterable. See the conversion of a list to string by using the map() for a mixed list:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">#An example of list to string conversion by map and join\r\n\r\n\r\nlst_mixed = ['List','to','String by map',9.9, 50]\r\n\r\n\r\nstr_join_map = \" \".join(map(str, lst_mixed))\r\n\r\nprint (\"After map and join:\",str_join_map)<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-3783\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2017\/09\/22.3-Python-list-to-string-map.png\" alt=\"list-to-string map\" width=\"443\" height=\"200\" srcset=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2017\/09\/22.3-Python-list-to-string-map.png 443w, https:\/\/www.jquery-az.com\/wp-content\/uploads\/2017\/09\/22.3-Python-list-to-string-map-300x135.png 300w\" sizes=\"(max-width: 443px) 100vw, 443px\" \/><\/p>\n<p>You can see, the list contains three strings, one int, and one float object. The output displays the elements of the\u00a0list as string after conversion.<\/p>\n<h3><strong>Vice Versa \u2013 convert string into a list<\/strong><\/h3>\n<p>If you require converting the strings into a list then you may use the <strong>split<\/strong> method. The split method takes a delimiter by which the given string is broken and it returns a list of strings. I have covered the split method in detail <a href=\"\/python-split-string-methods-split-rsplit-and-splitlines-6-examples\/\">here<\/a> with examples.<\/p>\n<p><strong>Example code:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">strmet = \"String to List\"\r\n\r\nprint (strmet.split())<\/pre>\n<p><strong>The output will be:<\/strong><\/p>\n<div class=\"codesdiv1\">[&#8216;String&#8217;, &#8216;to&#8217;, &#8216;List&#8217;]<\/div>\n<p>For the complete tutorial, go to the <a href=\"https:\/\/www.jquery-az.com\/python-split-string-methods-split-rsplit-and-splitlines-6-examples\/\">split string tutorial<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If your list contains only string objects then you may use the join() method for converting the list objects into the string. 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