This article served as an introduction to using the not equal ( !=) operator in Python and highlighted a few examples to help you understand its application. As you advance as a Python developer, you'll find yourself crafting more complex (but not necessarily hard) logic to execute various commands. The if statement checks whether the values of the operands are not the same and then prints a message based on the value returned. In some cases, you might prefer to carry out a certain command only after evaluating two variables.
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How to use an if statement with the != operator in Python The != operator can also be used to compare Strings, Dictionaries, Tuples and Sets. To further grasp the idea of True or False being returned when using the != operator, you should always have in mind that the value will be True if the operands are not the same and False if the operands are the same.
It would be True if both operands were not the same. Just like we saw in the previous section, the value is False because the two lists are the same. Lists are used to store more than one item in a single variable. In this section, we will be comparing lists. In the previous section, we compared the values of numbers. How to compare lists in Python using the != operator Here, the triplets all have the same face but != is saying, "All the babies do not have the same face" and that is false because their faces, represented by numbers, are the same – 600. When all the operands are the same and the != is used, then the value returned will be false.
Now the != operator is saying, "I have made my observations and concluded that the three babies are not identical facially" and that is completely True. Imagine a, b and c as triplets and each baby's face was represented by a number. To make this simpler to understand, the operator is only going look at the values of each operand and then compare all of them without adding one operand to the other. If you were expecting a value of false then you were probably trying to add some of the values during the comparison. Next, we will compare more than two values. # True, the value of a is not equal to the value of b Print(the value of a does not equal the value of b)
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If you still find this hard to grasp, then I will represent the code above using plain English to rewrite each line below: a is equal to 600 a = 600Īs expected, the above operation returns true because the value of a is not equal to the value of b. Here, we will define two variables and then compare their values. How to compare numeric values using the != operator in Python Let's see a few examples of how it works. != is the symbol we use for the not equal operator. If the values compared are not equal, then a value of false is returned. If the values compared are equal, then a value of true is returned. It returns either true or false depending on the result of the operation. The not equal operator is a relational or comparison operator that compares two or more values (operands). There are many other operators in Python which are divided into groups but in this tutorial we will be focusing on the not equal operator ( !=). Not equal operator ( !=) firstNumber = 10Īgain, the operator is the != symbol and the operands are firstNumber and secondNumber. Similar to the last example, * is the operator while c and d are the operands. The operator here is the + symbol which adds the value of a and b which are the operands. Here are a few examples of operators and how they interact with operands: Addition operator ( +) a = 10 These values or variables are known as the operands of the the operator so the operator performs its operation on them and returns a value. They carry out specific operations on certain values or variables. Operators are symbols that denote a certain type of action or process. Operators and Operands in Pythonīefore talking about the not equal operator, let's understand what operators and operands are in general. In this tutorial, we will talk about the not equal operator in Python and also see a few examples of how it works. When you're learning the basics of most programming languages, you are bound to come across operators.
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