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The Mac OS was disk-based from the beginning, as RAM had to be conserved, but this 'Startup Disk' could still be temporarily ejected. (Ejecting the root filesystem remained an unusual feature of the classic Mac OS until System 7.) One floppy disk was sufficient to store the System Software, an application and the data files created with the. Support for pre-OS X Mac applications. Unlike the Intel models, a G4 Mac Mini running Mac OS X 10.4 can run Mac OS 9 'Classic' applications, as long as a bootable copy of the OS 9 System Folder is installed from which to run the Classic environment. As of Mac OS X 10.5, the ability to run the Classic Environment was removed.

Nov 08, 2019 There always will be OS versions that arent' supported on your system and won't install or work properly. For full freedom and tinkering, one could go Linux but there a distributions that run an a Mac as well. Volley balley mac os. But those can be less stable and the problems you might run into that are pain the you know what to solve. There always will be OS versions that arent' supported on your system and won't install or work properly. For full freedom and tinkering, one could go Linux but there a distributions that run an a Mac as well. But those can be less stable and the problems you might run into that are pain the you know what to solve.

Mac OS X comes with Python 2.7 out of the box.

You do not need to install or configure anything else to use Python 2. Theseinstructions document the installation of Python 3.

The version of Python that ships with OS X is great for learning, but it's notgood for development. The version shipped with OS X may be out of date from theofficial current Python release,which is considered the stable production version.

Doing it Right¶

Let's install a real version of Python.

Before installing Python, you'll need to install GCC. GCC can be obtainedby downloading Xcode, the smallerCommand Line Tools (must have anApple account) or the even smaller OSX-GCC-Installerpackage.

Note

If you already have Xcode installed, do not install OSX-GCC-Installer.In combination, the software can cause issues that are difficult todiagnose.

Note

If you perform a fresh install of Xcode, you will also need to add thecommandline tools by running xcode-select--install on the terminal.

While OS X comes with a large number of Unix utilities, those familiar withLinux systems will notice one key component missing: a package manager.Homebrew fills this void.

To install Homebrew, open Terminal oryour favorite OS X terminal emulator and run

The script will explain what changes it will make and prompt you before theinstallation begins.Once you've installed Homebrew, insert the Homebrew directory at the topof your PATH environment variable. You can do this by adding the followingline at the bottom of your ~/.profile file

If you have OS X 10.12 (Sierra) or older use this line instead

Now, we can install Python 3:

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This will take a minute or two.

Pip¶

Homebrew installs pip pointing to the Homebrew'd Python 3 for you.

Working with Python 3¶

At this point, you have the system Python 2.7 available, potentially theHomebrew version of Python 2 installed, and the Homebrewversion of Python 3 as well.

will launch the Homebrew-installed Python 3 interpreter.

will launch the Homebrew-installed Python 2 interpreter (if any).

will launch the Homebrew-installed Python 3 interpreter.

If the Homebrew version of Python 2 is installed then pip2 will point to Python 2.If the Homebrew version of Python 3 is installed then pip will point to Python 3.

The rest of the guide will assume that python references Python 3.

Pipenv & Virtual Environments¶

The next step is to install Pipenv, so you can install dependencies and manage virtual environments.

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A Virtual Environment is a tool to keep the dependencies required by different projectsin separate places, by creating virtual Python environments for them. It solves the'Project X depends on version 1.x but, Project Y needs 4.x' dilemma, and keepsyour global site-packages directory clean and manageable.

For example, you can work on a project which requires Django 1.10 while alsomaintaining a project which requires Django 1.8.

So, onward! To the Pipenv & Virtual Environments docs! Dotster mac os.

This page is a remixed version of another guide,which is available under the same license.

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