How to run a Python script¶. Your best way to get started with Python on Mac OS X is through the IDLE integrated development environment, see section The IDE and use the Help menu when the IDE is running.
Python comes pre-installed on Mac OS X so it is easy to start using. However, to take advantage of the latest versions of Python, you will need to download and install newer versions alongside the system ones. The easiest way to do that is to install one of the binary installers for OS X from the Python Download.
Python is a widely-used programming language used in many of the computer science classes here at St. What is PIL/Pillow? PIL (Python Imaging Library) adds many image processing features to Python.
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The Python IDLE (Integrated DeveLopment Environment) editor is a graphical user interface for Python development. This GUI is free and installed automatically during the Python installation. It enables you to edit, run, and debug Python programs in a simple GUI environment.
IDLE is actually a Python program that uses the standard library’s tkinterGUI toolkit to build its windows. It is portable and can be run on all major platforms, such as Windows, Linux, Mac OS, etc. It supports the following features:
command history and syntax colorization
auto-indent and unindent for Python code
word auto-completion
support for multiple windows
integrated debugger
The Python IDLE is usually present as an entry in the Start button menu in Windows 7. In Windows 8, you can run it by typing IDLE from the Start menu. Once started, it will display some useful information about the Python version and the operating system:
You can write your code after the >>> prompt and it will be executed when you press Enter:
Although the shell window is useful for executing one-line commands, you will not use it to write full-fledged programs. Instead, Python IDLE comes with its own built-in text editor that you can use to write and save your code. You can start the editor by selecting File > New File:
Download Python Idle Mac Os
This opens up a window where you can type your code:
Before running your code, you will need to save it in a file (File > Save). Make sure that the file has the .py extension:
To run your code, click Run > Run Module (or press F5):
The result will be printed in the IDLE shell window:
Notice how the result of our program was displayed after the RESTART line.
Python IDLE is usually used by novice programmers. Later in your programming career, you will probably work with more powerful and robust tools, such as