Understanding and using loops (for, while)<\/p>\n\n\n\n
In Python, loops are used to repeatedly execute a block of program statements. The two types of loops in Python are the The Here’s a simple example of a In this example, You can also combine The The Here’s a simple example of a In this example, the Remember, the loop variable ( Loop control statements change the normal sequence of flow in loop iterations. Python supports the following control statements:<\/p>\n\n\n\n That’s the basic introduction to Understanding and using loops (for, while) In Python, loops are used to repeatedly execute a block of program statements. The two types of loops in Python are the for loop…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[99,118,94,117],"tags":[],"class_list":["post-125","post","type-post","status-publish","format-standard","hentry","category-control-structures","category-for-while","category-introduction-to-python-2","category-loops"],"featured_image_src":null,"author_info":{"display_name":"shababdoo","author_link":"https:\/\/python.garden\/index.php\/author\/shababdoo\/"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/posts\/125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/comments?post=125"}],"version-history":[{"count":0,"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/posts\/125\/revisions"}],"wp:attachment":[{"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/media?parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/categories?post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/python.garden\/index.php\/wp-json\/wp\/v2\/tags?post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}for<\/code> loop and the while<\/code> loop.<\/p>\n\n\n\nThe
for<\/code> Loop<\/h2>\n\n\n\nfor<\/code> loop in Python is used to iterate over a sequence (such as a list, tuple, string, or range) or other iterable objects. Iterating over a sequence is called traversal.<\/p>\n\n\n\nfor<\/code> loop:<\/p>\n\n\n\nfruits = ["apple", "banana", "cherry"]\n\nfor fruit in fruits:\n print(fruit)<\/pre><\/div>\n\n\n\n
fruit<\/code> is the loop variable that takes each value in the fruits<\/code> list. The block of code within the loop (here, the print<\/code> statement) is executed once for each item in the list.<\/p>\n\n\n\nfor<\/code> loops with range()<\/code> function:<\/p>\n\n\n\nfor i in range(5):\n print(i)<\/pre><\/div>\n\n\n\n
range()<\/code> function generates a sequence of numbers from 0 up to (but not including) the number specified as the parameter (in this case, 5).<\/p>\n\n\n\nThe
while<\/code> Loop<\/h2>\n\n\n\nwhile<\/code> loop in Python is used to iterate over a block of code as long as the test expression (condition) is true.<\/p>\n\n\n\nwhile<\/code> loop:<\/p>\n\n\n\ni = 0\n\nwhile i < 5:\n print(i)\n i += 1<\/pre><\/div>\n\n\n\n
print<\/code> statement will be executed as long as i<\/code> is less than 5<\/code>. We then increment i<\/code> by 1<\/code> after each loop iteration. If we didn’t do this, i<\/code> would always be 0<\/code>, the condition would always be true, and the loop would run forever, creating an infinite loop.<\/p>\n\n\n\ni<\/code> in this case) needs to be defined before the loop is started, and you should make sure that something changes from iteration to iteration so that the loop condition will eventually become false. Otherwise, the loop will run forever, creating an infinite loop.<\/p>\n\n\n\nLoop Control Statements<\/h2>\n\n\n\n
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break<\/code> statement: Terminates the loop statement and transfers execution to the statement immediately following the loop.<\/li>\n\n\n\ncontinue<\/code> statement: Causes the loop to skip the remainder of its body and immediately start the next iteration.<\/li>\n\n\n\npass<\/code> statement: The pass statement in Python is used when a statement is required syntactically, but you do not want any command or code to execute.<\/li>\n<\/ul>\n\n\n\nfor<\/code> and while<\/code> loops in Python. These looping structures are among the most important constructs in programming. They give us the power to repeat certain operations, which can be particularly useful when working with large collections of data.<\/p>\n","protected":false},"excerpt":{"rendered":"