{"id":16008,"date":"2021-08-24T10:14:53","date_gmt":"2021-08-24T04:44:53","guid":{"rendered":"http:\/\/www.pythonpool.com\/?p=16008"},"modified":"2023-05-03T11:59:09","modified_gmt":"2023-05-03T06:29:09","slug":"python-argparse-boolean","status":"publish","type":"post","link":"https:\/\/www.pythonpool.com\/python-argparse-boolean\/","title":{"rendered":"Ways To Parse Boolean Values With Argparse in Python"},"content":{"rendered":"\n<p>We are going to learn how to parse boolean values with argparse in python. Argparse is a way of adding positional or optional arguments to the code. <\/p>\n\n\n\n<p><strong>The argparse is a standard python library that is useful to do some manipulations in the command line. <strong>This module helps to improve interaction, and it is easy to code. When the user gives some invalid arguments, it generates a help and usage message to the user. And also, it displays issues errors to the user.<\/strong><\/strong><\/p>\n\n\n\n<p>The store_true option has a default value False. Likewise, store_false has a default value True.\u00a0We have to follow three important steps to use the argparse module. First, creating a parser. Secondly, adding arguments to the parser. Finally, parsing arguments. <\/p>\n\n\n\n<p>Let us move to learn about argparse python in-depth.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #990303;color:#990303\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #990303;color:#990303\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#How_to_Create_a_Parser\" >How to Create a Parser?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Syntax\" >Syntax<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Parameters\" >Parameters<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#How_to_add_arguments\" >How to add arguments?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Syntax-2\" >Syntax<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Parameter\" >Parameter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#How_to_parse_arguments\" >How to parse arguments?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Syntax-3\" >Syntax<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Parameter-2\" >Parameter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Code_1_Parsing_arguments_as_boolean_values\" >Code 1: Parsing arguments as boolean values<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Code_2_Parsing_arguments_using_conditional_statements\" >Code 2: Parsing arguments using conditional statements<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Code_3_Simplest_way_to_parse_boolean_arguments\" >Code 3: Simplest way to parse boolean arguments<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Code_4_Parsing_python_argparse_boolean_using_distuils_module\" >Code 4: Parsing python argparse boolean using distuils module<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Code_5_Parsing_arguments_using_disutils_module_with_conditional_statements\" >Code 5: Parsing arguments using disutils module with conditional statements<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Is_your_Python_argparse_boolean_always_true\" >Is your Python argparse boolean always true?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Argparse_Optional_Arguments\" >Argparse Optional Arguments<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#FAQs\" >FAQs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#Trending_Python_Articles\" >Trending Python Articles<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-how-to-create-a-parser\"><span class=\"ez-toc-section\" id=\"How_to_Create_a_Parser\"><\/span>How to Create a Parser?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>First, we have to import a module argparser. After importing argparser, the parser will be created. The parser will store all the information that has to pass.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-syntax\"><span class=\"ez-toc-section\" id=\"Syntax\"><\/span>Syntax<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">class argparse.ArgumentParser(prog=None, usage=None, description=None, epilog=None, parents=[], formatter_class=argparse.HelpFormatter, prefix_chars=\u2019-\u2018, fromfile_prefix_chars=None, argument_default=None, conflict_handler=\u2019error\u2019, add_help=True, allow_abbrev=True)<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-parameters\"><span class=\"ez-toc-section\" id=\"Parameters\"><\/span>Parameters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>prog:<\/strong> name of the program<\/li>\n\n\n\n<li><strong>usage: <\/strong>program usage<\/li>\n\n\n\n<li><strong>description:<\/strong> a brief description will be displayed before the command help.<\/li>\n\n\n\n<li><strong>epilog:<\/strong> a group of statements that will be displayed after the command help<\/li>\n\n\n\n<li><strong>parents:<\/strong> list of argument parser<\/li>\n\n\n\n<li><strong>formatter_class:<\/strong> class<\/li>\n\n\n\n<li><strong>prefix_chars: <\/strong>a set of prefix characters<\/li>\n\n\n\n<li><strong>fromfile_prefix_chars:<\/strong> a set of prefix files<\/li>\n\n\n\n<li><strong>argument_default:<\/strong> global default value<\/li>\n\n\n\n<li><strong>conflict_handler: <\/strong>resolving conflicting options<\/li>\n\n\n\n<li><strong>add_help:<\/strong> Add a help option to the parser<\/li>\n\n\n\n<li><strong>allow_abbrev: <\/strong>Allow long options<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-add-arguments\"><span class=\"ez-toc-section\" id=\"How_to_add_arguments\"><\/span>How to add arguments?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>After creating the parser, we have to add the arguments. Arguments have to be filled with information about the arguments. Using add_argument() method to add the argument. This tells how to take the argument from the command line. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-syntax-1\"><span class=\"ez-toc-section\" id=\"Syntax-2\"><\/span>Syntax<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">ArgumentParser.add_argument(name or flags\u2026[, action][, nargs][, const][, default][, type][, choices][, required][, help][, metavar][, dest])<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-parameter\"><span class=\"ez-toc-section\" id=\"Parameter\"><\/span>Parameter<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>names or flags: <\/strong>name of a string<\/li>\n\n\n\n<li><strong>action:<\/strong> action that has to be taken when the arguments are passed.<\/li>\n\n\n\n<li><strong>nargs: <\/strong>number of command-line arguments<\/li>\n\n\n\n<li><strong>const: <\/strong>constant value<\/li>\n\n\n\n<li><strong>default: <\/strong>default value produced if the arguments are absent.<\/li>\n\n\n\n<li><strong>type: <\/strong>In which type the argument should convert<\/li>\n\n\n\n<li><strong>choices:<\/strong> allowable values<\/li>\n\n\n\n<li><strong>required:<\/strong> options only<\/li>\n\n\n\n<li><strong>help: <\/strong>it is a brief description of what the argument does<\/li>\n\n\n\n<li><strong>metavar: <\/strong>name of an argument<\/li>\n\n\n\n<li><strong>dest: <\/strong>name of an attribute<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-parse-arguments\"><span class=\"ez-toc-section\" id=\"How_to_parse_arguments\"><\/span>How to parse arguments?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>First, it will gather the information and will use it when the arguments are parsed. The arguments will be parsed through parse_args(). While parse_args() is called the command line, data convert them into the required data type. After converting, it produces a proper result.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-syntax-2\"><span class=\"ez-toc-section\" id=\"Syntax-3\"><\/span>Syntax<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">ArgumentParser.parse_args(args=None, namespace=None)<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-parameter-1\"><span class=\"ez-toc-section\" id=\"Parameter-2\"><\/span>Parameter<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>args &#8211;<\/strong> list of strings<\/li>\n\n\n\n<li><strong>Namespace &#8211; <\/strong>object to take attributes.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-pale-cyan-blue-background-color has-background\" style=\"font-size:19px\"><strong>Must Read |<\/strong> <a href=\"http:\/\/www.pythonpool.com\/scipy-fsolve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span style=\"text-decoration: underline;\">Scipy fsolve<\/span><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-code-1-parsing-arguments-as-boolean-values\"><span class=\"ez-toc-section\" id=\"Code_1_Parsing_arguments_as_boolean_values\"><\/span>Code 1: Parsing arguments as boolean values<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport argparse\nparser = argparse.ArgumentParser()\nparser.add_argument('--Var1', action='store_true')\nparser.add_argument('--Var2', action='store_false')\narguments = parser.parse_args()\nprint(arguments)\n<\/pre><\/div>\n\n\n<p>First, importing the argparse module. Secondly, creating a parser. Thirdly, passing ArgumentParser(). Fourthly, adding arguments variable 1 and variable 2. One variable stores action 1 as True, and another variable action is False.<\/p>\n\n\n\n<p class=\"has-medium-font-size\" id=\"h-output\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Namespace(Var1=False, Var2=True)<\/pre>\n\n\n<div class=\"monsterinsights-inline-popular-posts monsterinsights-inline-popular-posts-mike monsterinsights-popular-posts-styled\" ><div class=\"monsterinsights-inline-popular-posts-image\"><a href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-cant-compare-datetime-datetime-to-datetime-date\/\"><img decoding=\"async\" src=\"https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-300x157.webp\" srcset=\" https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-300x157.webp 300w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-1024x536.webp 1024w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-768x402.webp 768w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_.webp 1200w \" alt=\"[Fixed] typeerror can&#8217;t compare datetime.datetime to datetime.date\" \/><\/a><\/div><div class=\"monsterinsights-inline-popular-posts-text\"><span class=\"monsterinsights-inline-popular-posts-label\" >Trending<\/span><div class=\"monsterinsights-inline-popular-posts-post\"><a class=\"monsterinsights-inline-popular-posts-title\"  href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-cant-compare-datetime-datetime-to-datetime-date\/\">[Fixed] typeerror can&#8217;t compare datetime.datetime to datetime.date<\/a><\/div><\/div><\/div><p><\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-code-2-parsing-arguments-using-conditional-statements\"><span class=\"ez-toc-section\" id=\"Code_2_Parsing_arguments_using_conditional_statements\"><\/span>Code 2: Parsing arguments using conditional statements<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport argparse\nparser = argparse.ArgumentParser()\nparser.add_argument(&quot;--do-something&quot;, default=False, action=&quot;store_true&quot;)\narguments = parser.parse_args()\nif arguments.do_something:\n     print(&quot;Do something&quot;)\nelse:\n     print(&quot;Don't do something&quot;)\nprint(f&quot;Check that arguments.do_something={arguments.do_something} is always a boolean value.&quot;)\n<\/pre><\/div>\n\n\n<p>First, importing the argparse module. Secondly, creating a parser. Thirdly, passing ArgumentParser(). Fourthly, parsing commands like Do something and don&#8217;t something. Finally, checking for the results. <\/p>\n\n\n\n<p class=\"has-medium-font-size\" id=\"h-output-1\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Don't do something\nCheck that arguments.do_something=False is always a boolean value.<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-code-3-simplest-way-to-parse-boolean-arguments\"><span class=\"ez-toc-section\" id=\"Code_3_Simplest_way_to_parse_boolean_arguments\"><\/span>Code 3: Simplest way to parse boolean arguments<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport argparse\nparser = argparse.ArgumentParser()\nparser.add_argument('--my-flag',choices=('True','False'))\narguments = parser.parse_args()\nMyFlag = arguments.my_flag == 'True'\nprint(MyFlag)\n<\/pre><\/div>\n\n\n<p>First, importing the argparse module. Secondly creating a parser. Thirdly passing ArgumentParser(). Fourthly adding arguments in the parser. Using flags to add arguments. <\/p>\n\n\n\n<p class=\"has-medium-font-size\" id=\"h-output-2\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">False<\/pre>\n\n\n<div class=\"monsterinsights-inline-popular-posts monsterinsights-inline-popular-posts-beta monsterinsights-popular-posts-styled\" ><div class=\"monsterinsights-inline-popular-posts-image\"><a href=\"https:\/\/www.pythonpool.com\/fixed-nameerror-name-unicode-is-not-defined\/\"><img decoding=\"async\" src=\"https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-300x157.webp\" srcset=\" https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-300x157.webp 300w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-1024x536.webp 1024w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-768x402.webp 768w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined.webp 1200w \" alt=\"[Fixed] nameerror: name Unicode is not defined\" \/><\/a><\/div><div class=\"monsterinsights-inline-popular-posts-text\"><span class=\"monsterinsights-inline-popular-posts-label\" >Trending<\/span><div class=\"monsterinsights-inline-popular-posts-post\"><a class=\"monsterinsights-inline-popular-posts-title\"  href=\"https:\/\/www.pythonpool.com\/fixed-nameerror-name-unicode-is-not-defined\/\">[Fixed] nameerror: name Unicode is not defined<\/a><\/div><\/div><\/div><p><\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-code-4-parsing-python-argparse-boolean-using-distuils-module\"><span class=\"ez-toc-section\" id=\"Code_4_Parsing_python_argparse_boolean_using_distuils_module\"><\/span>Code 4: Parsing python argparse boolean using distuils module<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport argparse\nfrom distutils.util import strtobool\nparser = argparse.ArgumentParser()\nparser.add_argument(&quot;--flag&quot;, type=lambda x:bool(strtobool(x)),\n    nargs='?', const=True, default=False)\narguments = parser.parse_args()\nprint(arguments.flag)\n<\/pre><\/div>\n\n\n<p>First, importing the argparse module. Secondly, creating a parser. Thirdly, <strong>importing strtobool<\/strong> from distutils module. Fourthly, adding arguments to the parser. Using <a href=\"https:\/\/en.wikipedia.org\/wiki\/Boolean_flag\" target=\"_blank\" rel=\"noreferrer noopener\">flags<\/a> to add arguments. Now the argparse bool will be displayed.<\/p>\n\n\n\n<p class=\"has-medium-font-size\" id=\"h-output-3\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">False<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-code-5-parsing-arguments-using-disutils-module-with-conditional-statements\"><span class=\"ez-toc-section\" id=\"Code_5_Parsing_arguments_using_disutils_module_with_conditional_statements\"><\/span>Code 5: Parsing arguments using disutils module with conditional statements<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport argparse\nfrom distutils.util import strtobool\nparser = argparse.ArgumentParser()\nparser.add_argument(&quot;--feature&quot;, type=str, nargs='?', const='True', default=&quot;False&quot;)\narguments = parser.parse_args()\nif bool(strtobool(arguments.feature)) is True:\n    print(&quot; &quot;)\nprint(arguments.feature)\n<\/pre><\/div>\n\n\n<p>First, importing argparse. Secondly, creating a parser. Thirdly, importing strtobool from distutils module. Fourthly, adding arguments to the parser. Using conditional statement to parse the argparse.<\/p>\n\n\n\n<p class=\"has-medium-font-size\" id=\"h-output-4\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">False<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_your_Python_argparse_boolean_always_true\"><\/span>Is your Python argparse boolean always true?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>This happens because the input passed by you is treated as a string by argparse. Using &#8211;bool solves the query.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Argparse_Optional_Arguments\"><\/span>Argparse Optional Arguments<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Argparse provides some optional arguments. These can be used to set exact value as per our choice for certain strings. Some of them are :&nbsp;<\/p>\n\n\n\n<p>default=False or True, action=&#8217;store_true&#8217; or &#8216;store_false&#8217;.&nbsp;<\/p>\n\n\n<div class=\"monsterinsights-inline-popular-posts monsterinsights-inline-popular-posts-alpha monsterinsights-popular-posts-styled\" ><div class=\"monsterinsights-inline-popular-posts-text\"><span class=\"monsterinsights-inline-popular-posts-label\" >Trending<\/span><div class=\"monsterinsights-inline-popular-posts-post\"><a class=\"monsterinsights-inline-popular-posts-title\"  href=\"https:\/\/www.pythonpool.com\/solved-runtimeerror-cuda-error-invalid-device-ordinal\/\">[Solved] runtimeerror: cuda error: invalid device ordinal<\/a><\/div><\/div><\/div><p><\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faqs\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1629770110503\"><strong class=\"schema-faq-question\">1. What is the argparse module?<\/strong> <p class=\"schema-faq-answer\">argparse is a module that is useful to parse command-line arguments.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1629770168596\"><strong class=\"schema-faq-question\">2. What are the steps for using the argparse module?<\/strong> <p class=\"schema-faq-answer\">First, we have to create the parser. Secondly, we have to add arguments to the parse. Thirdly, we have to parse arguments.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1629770315233\"><strong class=\"schema-faq-question\">3. What is the command line to install the argparse module?<\/strong> <p class=\"schema-faq-answer\">pip install argparse module<\/p> <\/div> <\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>We hope now you are all well known about argparse bool python. This article covers the steps for using the argparse module and how to parse the boolean value with the argparse module. Try to solve the code on your own. Learn python coding with us \ud83d\ude42<\/p>\n\n\n<div class=\"monsterinsights-widget-popular-posts monsterinsights-widget-popular-posts-charlie monsterinsights-popular-posts-styled monsterinsights-widget-popular-posts-columns-1\"><h2 class=\"monsterinsights-widget-popular-posts-widget-title\"><span class=\"ez-toc-section\" id=\"Trending_Python_Articles\"><\/span>Trending Python Articles<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"monsterinsights-widget-popular-posts-list\"><li style=\"background-color:#EEEEEE;border-color:#CD3034;\"><a href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-cant-compare-datetime-datetime-to-datetime-date\/\"><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" style=\"color:#000000;font-size:18px;\">[Fixed] typeerror can&#8217;t compare datetime.datetime to datetime.date<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><\/div><\/div><\/a><\/li><li style=\"background-color:#EEEEEE;border-color:#CD3034;\"><a href=\"https:\/\/www.pythonpool.com\/fixed-nameerror-name-unicode-is-not-defined\/\"><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" style=\"color:#000000;font-size:18px;\">[Fixed] nameerror: name Unicode is not defined<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><\/div><\/div><\/a><\/li><li style=\"background-color:#EEEEEE;border-color:#CD3034;\"><a href=\"https:\/\/www.pythonpool.com\/solved-runtimeerror-cuda-error-invalid-device-ordinal\/\"><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" style=\"color:#000000;font-size:18px;\">[Solved] runtimeerror: cuda error: invalid device ordinal<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><\/div><\/div><\/a><\/li><li style=\"background-color:#EEEEEE;border-color:#CD3034;\"><a href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-type-numpy-ndarray-doesnt-define-__round__-method\/\"><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" style=\"color:#000000;font-size:18px;\">[Fixed] typeerror: type numpy.ndarray doesn&#8217;t define __round__ method<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><\/div><\/div><\/a><\/li><\/ul><\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>We are going to learn how to parse boolean values with argparse in python. Argparse is a way of adding positional or optional arguments to &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Ways To Parse Boolean Values With Argparse in Python\" class=\"read-more button\" href=\"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#more-16008\" aria-label=\"More on Ways To Parse Boolean Values With Argparse in Python\">Read more<\/a><\/p>\n","protected":false},"author":22,"featured_media":16047,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-16008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","infinite-scroll-item"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.1 (Yoast SEO v25.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ways To Parse Boolean Values With Argparse in Python - Python Pool<\/title>\n<meta name=\"description\" content=\"In this article, we are going to learn how to parse boolean values with argparse in python. 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What is the argparse module?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"argparse is a module that is useful to parse command-line arguments.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#faq-question-1629770168596","position":2,"url":"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#faq-question-1629770168596","name":"2. What are the steps for using the argparse module?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"First, we have to create the parser. Secondly, we have to add arguments to the parse. Thirdly, we have to parse arguments.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#faq-question-1629770315233","position":3,"url":"https:\/\/www.pythonpool.com\/python-argparse-boolean\/#faq-question-1629770315233","name":"3. What is the command line to install the argparse module?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"pip install argparse module","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/posts\/16008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/comments?post=16008"}],"version-history":[{"count":40,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/posts\/16008\/revisions"}],"predecessor-version":[{"id":27556,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/posts\/16008\/revisions\/27556"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/media\/16047"}],"wp:attachment":[{"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/media?parent=16008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/categories?post=16008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pythonpool.com\/wp-json\/wp\/v2\/tags?post=16008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}