If you are at the beginning of working with Python, you can use editors like Sublime or Notepad which are easy to use, or any other text editors. The code written in the Python interactive session is lost once it is closed, though it allows the user to write many lines of code. The most sought-after way to write a Python program is using a plain text editor. How to Run Python Script using Command-Line It is the component that actually runs your scripts. The PVM loads the bytecode in the Python runtime reads each operation and executes them as indicated. It is a part of the Python environment installed in your system. The Python Virtual Machine (PVM) is the ultimate step of the Python interpreter process. Finally, the interpreter transfers the code for execution.So, the interpreter ignores the compilation step when executing the code for the next time. It is an intermediate, machine-independent code that optimizes the process of code execution. Then the code is compiled into a form of instruction set called the bytecode.īasically, the code is converted into a low-level language known as bytecode.At first, the statements or expressions of your script are processed in a sequential manner by the interpreter.The term Python Execution Model is given to the entire multi-step process of running Python script. How to Run Python Script by the Interpreter The only disadvantage is when you close the interactive session, the code no longer exists. The statements you write when working with an interactive session are evaluated and executed immediately: print('HELLO WORLD!') You need to re-install Python on your system if you do not see these characters. The > on the terminal represents the standard prompt for the interactive mode. Type "help", "copyright", "credits" or "license()" for more information. To initiate a Python interactive session, type python in the command line or terminal and hit the ENTER key from the keyboard.Īn example of how to do this on Windows: C:\users>python An interactive session is an excellent development tool to venture with the language and allows you to test every piece of Python code on the go. Running Python code through an interactive session is an extensively used way. On MAC OS X, the system terminal is accessed through Applications → Utilities → Terminal.On GNU/Linux, the command line can be accessed by several applications like xterm, Gnome Terminal or Konsole.A quicker way to access it is to go to the Start menu → Run and type cmd. On Windows, the command line is called the command prompt or MS-DOS console.The simplest way to start the interpreter is to open the terminal and then use the interpreter from the command line. In the form of a piece of code written in an interactive session.The interpreter terminates when we use the exit() or quit() command otherwise the execution keeps on going.Ī Python Interpreter runs code in two ways:
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