In Python, operators<\/strong> are special symbols, combinations of symbols, or keywords that designate some type of computation. You can combine objects and operators to build expressions<\/strong> that perform the actual computation. So, operators are the building blocks of expressions, which you can use to manipulate your data. Therefore, understanding how operators work in Python is essential for you as a programmer.<\/p>\n In this tutorial, you\u2019ll learn about the operators that Python currently supports. You\u2019ll also learn the basics of how to use these operators to build expressions.<\/p>\n In this tutorial, you\u2019ll:<\/strong><\/p>\n To get the most out of this tutorial, you should have a basic understanding of Python programming concepts, such as variables<\/a>, assignments<\/a>, and built-in data types<\/a>.<\/p>\n Free Bonus:<\/strong> Click here to download your comprehensive cheat sheet<\/a> covering the various operators in Python.<\/p>\n<\/div>\n <\/i> Take the Quiz:<\/strong> Test your knowledge with our interactive \u201cPython Operators and Expressions\u201d quiz. Upon completion you will receive a score so you can track your learning progress over time:<\/p>\n Take the Quiz \u00bb<\/a><\/p>\n<\/div>\n In programming, an operator<\/strong> is usually a symbol or combination of symbols that allows you to perform a specific operation. This operation can act on one or more operands<\/strong>. If the operation involves a single operand, then the operator is unary<\/strong>. If the operator involves two operands, then the operator is binary<\/strong>.<\/p>\n For example, in Python, you can use the minus sign ( In this code snippet, the minus sign ( Programming languages typically have operators built in as part of their syntax. In many languages, including Python, you can also create your own operator or modify the behavior of existing ones, which is a powerful and advanced feature to have.<\/p>\n In practice, operators provide a quick shortcut for you to manipulate data, perform mathematical calculations, compare values, run Boolean<\/a> tests, assign values to variables, and more. In Python, an operator may be a symbol, a combination of symbols, or a keyword<\/a>, depending on the type of operator that you\u2019re dealing with.<\/p>\n For example, you\u2019ve already seen the subtraction operator, which is represented with a single minus sign ( In this example, you use the Python equality operator ( Speaking of Boolean values, the Boolean or logical operators in Python are keywords rather than signs, as you\u2019ll learn in the section about Boolean operators and expressions<\/a>. So, instead of the odd signs like Using keywords instead of odd signs is a really cool design decision that\u2019s consistent with the fact that Python loves and encourages code\u2019s readability<\/a>.<\/p>\n You\u2019ll find several categories or groups of operators in Python. Here\u2019s a quick list of those categories:<\/p>\n All these types of operators take care of specific types of computations and data-processing tasks. You\u2019ll learn more about these categories throughout this tutorial. However, before jumping into more practical discussions, you need to know that the most elementary goal of an operator is to be part of an expression<\/a>. Operators by themselves don\u2019t do much:<\/p>\n As you can see in this code snippet, if you use an operator without the required operands, then you\u2019ll get a syntax error<\/a>. So, operators must be part of expressions, which you can build using Python objects as operands.<\/p>\n So, what is an expression anyway? Python has simple<\/a> and compound<\/a> statements. A simple statement is a construct that occupies a single logical line<\/a>, like an assignment statement. A compound statement is a construct that occupies multiple logical lines, such as a [ Improve Your Python With ? Python Tricks ? \u2013 Get a short & sweet Python Trick delivered to your inbox every couple of days. >> Click here to learn more and see examples<\/a> ]<\/em><\/p>\n\n In Python, operators are special symbols, combinations of symbols, or keywords that designate some type of computation. You can combine objects and operators to build expressions that perform the actual computation. So, operators are the building blocks of expressions.<\/p>\n<\/div>","protected":false},"author":2055,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"Operators and Expressions in Python - ITTeacherITFreelance.hk","description":"In Python, operators are special symbols, combinations of symbols, or keywords that designate some type of computation. You can combine objects and operators to"},"footnotes":""},"categories":[10700],"tags":[],"_links":{"self":[{"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/329498"}],"collection":[{"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/2055"}],"replies":[{"embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=329498"}],"version-history":[{"count":1,"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/329498\/revisions"}],"predecessor-version":[{"id":329499,"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/329498\/revisions\/329499"}],"wp:attachment":[{"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=329498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=329498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=329498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
Getting Started With Operators and Expressions<\/a><\/h2>\n
-<\/code>) as a unary operator to declare a negative number. You can also use it to subtract two numbers:<\/p>\n<\/span>>>> <\/span>-<\/span>273.15<\/span>\n-273.15<\/span>\n\n>>> <\/span>5<\/span> -<\/span> 2<\/span>\n3<\/span>\n<\/code><\/pre>\n<\/div>\n-<\/code>) in the first example is a unary operator, and the number 273.15<\/code> is the operand. In the second example, the same symbol is a binary operator, and the numbers 5<\/code> and 2<\/code> are its left and right operands.<\/p>\n-<\/code>). The equality operator is a double equal sign (==<\/code>). So, it\u2019s a combination of symbols:<\/p>\n<\/span>>>> <\/span>42<\/span> ==<\/span> 42<\/span>\nTrue<\/span>\n<\/code><\/pre>\n<\/div>\n==<\/code>) to compare two numbers. As a result, you get True<\/code><\/a>, which is one of Python\u2019s Boolean values.<\/p>\n||<\/code>, &&<\/code>, and !<\/code> that many other programming languages use, Python uses or<\/code>, and<\/code>, and not<\/code>.<\/p>\n\n
<\/span>>>> <\/span>-<\/span>\n File \"<input>\"<\/span>, line 1<\/span>\n <\/span>-<\/span>\n <\/span>^<\/span>\nSyntaxError<\/span>: incomplete input<\/span>\n\n>>> <\/span>==<\/span>\n File \"<input>\"<\/span>, line 1<\/span>\n <\/span>==<\/span>\n <\/span>^^<\/span>\nSyntaxError<\/span>: incomplete input<\/span>\n\n>>> <\/span>or<\/span>\n File \"<input>\"<\/span>, line 1<\/span>\n <\/span>or<\/span>\n <\/span>^^<\/span>\nSyntaxError<\/span>: incomplete input<\/span>\n<\/code><\/pre>\n<\/div>\nfor<\/code> loop<\/a> or a conditional<\/a> statement. An expression<\/strong> is a simple statement that produces and returns a value.<\/p>\n<\/div>\nRead the full article at https:\/\/realpython.com\/python-operators-expressions\/ \u00bb<\/a><\/h2>\n
\n![\\\"IT\u96fb\u8166\u88dc\u7fd2](\\\"http:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-content\/uploads\/2016\/05\/logo2-2.png\\\"){kind=logo}
\r\nwww.itsec.hk<\/a>
\r\nwww.itsec.vip<\/a>
\r\nwww.itseceu.uk<\/a>
<\/p>","protected":false},"excerpt":{"rendered":"