Keywords and Identifiers in Python

What's an Identifier?

A name created by the programmer to define a variable, function or class is known as an identifier. The identifiers are used to identify these individualities uniquely. It's important to give meaning names to the identifiers to make the code easy readable. It'll also assist other programmers to distinguish what the program is about.

· They're applied to name a variable, a function, a class, a structure, a union.

· It's created to offer a unique name to an individuality.

· They can cohere of alphabets, figures, and underscores.

· There's no punctuation or special symbol, except the underscore.

What's a Keyword?

The keywords are supplied by the programming language for a especial task. They've special meanings. Keywords can not be applied as identifiers. The keywords are also known as reserved words. When there's a statement in the program as int number = 2; it means that the number is a variable which contains the value 2. The int is a keyword. It informs the compiler that the memory position can keep an integer value. When there's a statement as float area; the float is a keyword and area is an identifier. The area variable can hold a floating- point valuation.

· They're pre-defined words that are reserved to work with programs.

· They ca n’t be utilized anywhere otherwise.

· It can only hold alphabetical characters.

· It helps distinguish specific property which exists within a language.

Difference between Keyword and identifier

An identifier is a unique name presented to a particular variable, function or marker of class in the program. To generate a variable, both a keyword and an identifier are bind together.

The identifiers can be altered if wanted, while this isn't the case with keywords, which are fixed, we can not make over it according to our need. This content beyond elaborates the difference between a keyword and an identifier.

Identifier and Variable

The identifier is only used to identify an reality uniquely in a program at the time of implementation whereas, a variable is a name given to a memory position, that's used to hold a value.

Variable is only a kind of identifier, other kinds of identifiers are function names, class names, structure names, etc. So it can be said that all variables are identifiers whereas, vice versa isn't true.

Conclusion

We learn about the keywords ,identifiers in python and difference between keyword and identifier.

Both an identifier and a variable are the names distributed by users to a particular individuality in a program.