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Working of Language Translators

                The programs written in a high-level language must be translated into machine language by
                using a translator called compiler or interpreter.


                                    3 × 2 = 6                                 Machine Code (01001)


                                   High-level    Input    Language      Output       Machine
                                   Language              Translator                 Language


                Have you played games in mobile or on computer system? Have you seen a website? How is
                it developed? Let us find out the answers of these questions.

                These games and websites are programs or applications developed by using a programming
                language. There are a number of programming languages. Some of them are C language,
                C++ and Python. In this chapter, we will learn about Python and how to develop programs
                in Python.


                        Python


                Python is a popular high-level programming language. It is a powerful language used for
                general-purpose programming. Python was developed by Guido van Rossum. He started
                applying Python in 1989. Python is extensively used to develop:
                •   games                                           •   websites

                •   Graphical User Interface programs               •   web applications



                        Features of Python

                •     Easy to code: it is very easy to write programs in Python as compared to other high-level
                    programming languages. This is because the language used to write Python codes is
                    similar to the English language.

                •     Open-source language: Python is a free and open-source programming language. An
                    open-source language is one which can be easily improved and distributed by anyone.
                You can download Python free of cost and use it on any operating system such as Windows,

                Mac or Linux.
                •     Object-Oriented: Python has an object-oriented approach. This means that the programs
                    are designed using objects and classes that interact with each other.

                •     Integrated  and  Extensible  language:  We can easily integrate Python with other
                    languages such as C, C++. We can also write and compile a Python code in C or C++.
                •     Interpreted language: The code you create in Python is executed line by line which makes
                    it easy to correct any errors. On execution, a Python code is immediately converted into an

                    intermediate form. This is known as byte code. The byte code makes it easier to execute or
                    run the code in future.
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