{"id":1143,"date":"2016-03-18T09:16:43","date_gmt":"2016-03-18T09:16:43","guid":{"rendered":"http:\/\/www.jquery-az.com\/?p=1143"},"modified":"2023-04-05T09:16:43","modified_gmt":"2023-04-05T09:16:43","slug":"python-if-else-and-elif-statements-explained-with-8-examples","status":"publish","type":"post","link":"https:\/\/www.jquery-az.com\/python-if-else-and-elif-statements-explained-with-8-examples\/","title":{"rendered":"Python if, else and elif statements: Explained with 8 examples"},"content":{"rendered":"<h3><strong>The if statement in Python<\/strong><\/h3>\n<ul>\n<li><strong>The if..else and elif are the decision-making statements in Python. <\/strong><\/li>\n<li>It will execute single or more statements based on the given expression.<\/li>\n<li>If the given expression is True, the statement inside the if statement will execute.<\/li>\n<li>If the condition is false, the statement inside the else will execute.<\/li>\n<\/ul>\n<h3><strong>Syntax of if statement<\/strong><\/h3>\n<p>Following is the general syntax of using if statement in Python:<\/p>\n<blockquote><p>if expression:<\/p>\n<p>#Statements to be executed here if condition is true<\/p>\n<p>else:<\/p>\n<p>#Statements to be executed here if condition is false<\/p><\/blockquote>\n<p><strong>Note<\/strong>: The else statement is optional. If you use the else statement, it can be used once only. If you want to check multiple conditions then use <a href=\"\/python-if-else-and-elif-statements-explained-with-8-examples\/#The-elif-statement-in-Python\" target=\"_blank\" rel=\"nofollow\"><strong>the elif statement<\/strong><\/a>, explained at the last section of this tutorial.<\/p>\n<h3><strong>An example of using Python if statement<\/strong><\/h3>\n<p>In this example, a simple if statement is used where an expression is given. If the expression is true, it will display a message:<\/p>\n<p>The following code is executed:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">ifnum = 10\r\n\r\nif ifnum==10:\r\n\r\nprint (\"The value of ifnum variable is 10, so condition is true!\")<\/pre>\n<p>Output:<\/p>\n<p>In the demo page, you can see the output of the above code is:<\/p>\n<blockquote><p>The value of ifnum variable is 10, so condition is true!<\/p><\/blockquote>\n<h3><strong>An example of executing multiple statements in if statement<\/strong><\/h3>\n<p>You may execute multiple statements in the <em>if statement,<\/em> provided you use the same indentation i.e. default four spaces (you may change that).<\/p>\n<p>If you use the second or next statement at the same level where the if statement is used, it will be considered outside of the if statement. In that case, after executing the if statement, this statement or code will execute.<\/p>\n<p>See the following example where multiple statements are executed as the condition is true:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-1145\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.1-Python-if-multiple-stat.png\" alt=\"if multiple statement\" width=\"489\" height=\"49\" srcset=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.1-Python-if-multiple-stat.png 489w, https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.1-Python-if-multiple-stat-300x30.png 300w\" sizes=\"(max-width: 489px) 100vw, 489px\" \/><\/p>\n<h3><strong>An example of using the Python else statement<\/strong><\/h3>\n<p>In this example, the else Python statement is given that will execute a line of code if the condition is false. You may also use multiple statements with the same indentation in the else block just like in the if block. See the code and output online:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-1146 size-full\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.2-Python-if-else.png\" alt=\"Python if else\" width=\"579\" height=\"189\" srcset=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.2-Python-if-else.png 579w, https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.2-Python-if-else-300x97.png 300w\" sizes=\"(max-width: 579px) 100vw, 579px\" \/><\/p>\n<p>The output of the above code is:<\/p>\n<blockquote><p>The ifnum variable value is other than 10!<\/p><\/blockquote>\n<h3><strong>A demo of using multiple conditions in the if Python statement<\/strong><\/h3>\n<p>In this demo, two conditions are used in the if statement. For that, two variables are declared and assigned the values. In the if condition, the <a href=\"\/python-operator-4-examples-statement\/\"><strong>\u201cand\u201d operator<\/strong><\/a> is used. See the code and output by clicking the link or image below:<\/p>\n<p>The following code is used in this example:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">#A demo of if statement with two conditions\r\nvar1 = 10\r\nvar2 = 20\r\n\r\nif var1==10 and var2 == 20:\r\n\r\nprint (\"Both conditions are TRUE!\")\r\n\r\nelse:\r\n\r\nprint (\"One or both conditions are false!\")<\/pre>\n<p>Output:<\/p>\n<p>The output of the above code is:<\/p>\n<blockquote><p>Both conditions are TRUE!<\/p><\/blockquote>\n<p>Note: If you are using the<a href=\"\/python-operator-4-examples-statement\/\"><em> \u2018and\u2019<\/em> operator<\/a>, all the conditions have to be <strong>true<\/strong> in order to execute the statements inside the if statement. If any of the conditions is false, the else part (if provided) will execute. See the example below.<\/p>\n<h3><strong>What happens if a condition is false with \u2018and\u2019 operator<\/strong><\/h3>\n<p>In this example, one condition is true while the other is false in the if statement as using the <a href=\"\/python-operator-4-examples-statement\/\">Python \u2018and\u2019<\/a> operator. See the code and output:<\/p>\n<p>The following Python code is used:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">#A demo of if statement with two conditions\r\n\r\nvar1 = 5\r\n\r\nvar2 = 20\r\n\r\n\r\n\r\nif var1==10 and var2 == 20:\r\n\r\n\r\n\r\nprint (\"Both conditions are TRUE!\")\r\n\r\n\r\n\r\nelse:\r\n\r\n\r\n\r\nprint (\"One or both conditions are false!\")<\/pre>\n<p>&nbsp;<\/p>\n<p>The output of the above code is:<\/p>\n<blockquote><p>One or both conditions are false!<\/p><\/blockquote>\n<p>As mentioned earlier, all the conditions have to be true in order to execute the statements inside the if block while using the \u2018and\u2019 operator. Otherwise, the else part will execute.<\/p>\n<p>If this is required to execute if block as any of the conditions is true, then use the \u2018or&#8217; operator as shown in the following example.<\/p>\n<h3><strong>Using \u2018or\u2019 operator in if statement<\/strong><\/h3>\n<p>In this example, the <a href=\"\/5-examples-python-operator-statement\/\"><strong>&#8216;or&#8217; operator<\/strong><\/a> is used in Python if else statement. Two conditions are given, so, if any of the conditions is true, the if part will execute:<\/p>\n<p>This is how the \u2018or\u2019 operator is used:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">#A demo of if statement with two conditions\r\n\r\nvar1 = 5\r\n\r\nvar2 = 20\r\n\r\n\r\n\r\nif var1==10 or var2 == 20:\r\n\r\n\r\n\r\nprint (\"One or both conditions are true!\")\r\n\r\n\r\n\r\nelse:\r\n\r\n\r\n\r\nprint (\"All conditions are false!\")<\/pre>\n<p>Output:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-1148\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.4-Python-if-else-OR.png\" alt=\"if else OR\" width=\"282\" height=\"34\" \/><\/p>\n<p>As one condition is true, this will be the output:<\/p>\n<blockquote><p>One or both conditions are true!<\/p><\/blockquote>\n<h3><strong>The elif statement in Python<\/strong><\/h3>\n<p>If you have multiple conditions to check and for each condition different code is required to execute, you may use the<strong> elif statement of Python<\/strong>.<\/p>\n<ul>\n<li>The elif statement also takes an expression which is checked after the first if statement.<\/li>\n<li>You may use multiple elif statements.<\/li>\n<\/ul>\n<p>See the following example of using the Python elif statement. In this example, a variable is assigned an initial value of 30.<\/p>\n<p>The following code is used for elif example:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">var1 = 30\r\n\r\n\r\n\r\nif var1==10:\r\n\r\nprint (\"The if statement is true!\")\r\n\r\nelif var1 == 20:\r\n\r\nprint (\"The first elif is true!\")\r\n\r\nelif var1 == 30:\r\n\r\nprint (\"The second elif is true!\")\r\n\r\nelse:\r\n\r\nprint (\"All are false!\")<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-1149\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.5-Python-elif.png\" alt=\"elif\" width=\"306\" height=\"39\" srcset=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.5-Python-elif.png 306w, https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.5-Python-elif-300x38.png 300w\" sizes=\"(max-width: 306px) 100vw, 306px\" \/><\/p>\n<p>As the value of the variable is 30, the second elif statement is executed.<\/p>\n<h3><strong>An example of elif with current day<\/strong><\/h3>\n<p>In this example, a message is shown according to the current day by using the if..elif..else statement.<\/p>\n<p>For that, first the datetime module is imported and current day is taken. After that, a series of if..elif statements are used to check what is the current day and according to the day, a related message is displayed.<\/p>\n<p>This is how it is done:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">import datetime\r\n\r\n\r\n\r\ncurrday = datetime.date.today()\r\n\r\nw = currday.weekday() + 1\r\n\r\n\r\n\r\nif (w == 0): print(\"Its Sunday.\");\r\n\r\nelif (w == 1): print(\"The first working day, Monday!\");\r\n\r\nelif (w == 2): print(\"The second working day, Tuesday!\");\r\n\r\nelif (w == 3): print(\"The third working day, Wed!\");\r\n\r\nelif (w == 4): print(\"Weekend is getting closer, its Thu!\");\r\n\r\nelif (w == 5): print(\"Hurray! so close, its Fri!\");\r\n\r\nelse: print(\"Yay, the Weekend started, as its Sat!\");<\/pre>\n<p>Output:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-1150\" src=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.6-Python-elif-weekdays.png\" alt=\"elif weekdays\" width=\"306\" height=\"38\" srcset=\"https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.6-Python-elif-weekdays.png 306w, https:\/\/www.jquery-az.com\/wp-content\/uploads\/2016\/03\/1.6-Python-elif-weekdays-300x37.png 300w\" sizes=\"(max-width: 306px) 100vw, 306px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The if statement in Python The if..else and elif are the decision-making statements in Python. It will execute single or more statements based on the given expression. If the given expression is True, the statement inside the if statement will execute. If the condition is false, the statement inside the else will execute. Syntax of &#8230; <a title=\"Python if, else and elif statements: Explained with 8 examples\" class=\"read-more\" href=\"https:\/\/www.jquery-az.com\/python-if-else-and-elif-statements-explained-with-8-examples\/\" aria-label=\"More on Python if, else and elif statements: Explained with 8 examples\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":1146,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python if, else and elif statements: Explained with 8 examples<\/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:\/\/www.jquery-az.com\/python-if-else-and-elif-statements-explained-with-8-examples\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python if, else and elif statements: Explained with 8 examples\" \/>\n<meta property=\"og:description\" content=\"The if statement in Python The if..else and elif are the decision-making statements in Python. 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