Install Python Check if Python is already installed. First of all, let’s check that Python is not already installed on your computer. Open a Windows console (cmd.exe) or a MacOS Terminal window (Terminal.app), and type: python -version python3 -version. One way to solve it is to use the pip command to download - but not install. Then you tweak the header location from the config file. Then you pip install that. Installing Python 3 on Mac OS X¶ Mac OS X comes with Python 2.7 out of the box. If the Homebrew version of Python 3 is installed then pip will point to Python 3. Now in the year of 2020. Set up PATH environment variable, if you used HomeBrew to install Python3, then HomeBrew already added PATH. Do not change PATH environment if you can launch python3 from terminal. Add the following line to your /.profile file. May 23, 2015 I found that Google has a python course and it said to download python 2 from python's website, which I did, and I now realize that python was already installed on my mac by apple. Anyways, I also had to download some exercises from google, and attempt to run some code in terminal and this is where I'm running into trouble and could really use. Oct 02, 2021 Python on a Macintosh running Mac OS X is in principle very similar to Python onany other Unix platform, but there are a number of additional features such asthe IDE and the Package Manager that are worth pointing out. Getting and Installing MacPython¶ Mac OS X 10.8 comes with Python 2.7 pre-installed by Apple.
Check out our guide for installing Python 3 on OS X.
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. Having saidthat, I would strongly recommend that you install the tools and librariesdescribed in the next section before you start building Python applications forreal-world use. In particular, you should always install Setuptools, as it makesit much easier for you to install and manage other third-party Python libraries.
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 The version shipped with OS X may be out of date from theofficial current Python release,which is considered the stable production version.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 a C compiler. The fastest wayis to install the Xcode Command Line Tools by running
xcode-select--install. You can also download the full version ofXcode from the Mac App Store, or theminimal but unofficialOSX-GCC-Installerpackage.
If you already have Xcode installed, do not install OSX-GCC-Installer.In combination, the software can cause issues that are difficult todiagnose.
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 decent 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
Now, we can install Python 2.7:
[email protected] is a “keg”, we need to update our
PATH again, to point at our new installation:
Homebrew names the executable
python2 so that you can still run the system Python via the executable
Setuptools & Pip¶
Homebrew installs Setuptools and
pip for you.
Setuptools enables you to download and install any compliant Pythonsoftware over a network (usually the Internet) with a single command(
easy_install). It also enables you to add this network installationcapability to your own Python software with very little work.
pip is a tool for easily installing and managing Python packages,that is recommended over
easy_install. It is superior to
easy_installin several ways,and is actively maintained.
A Virtual Environment (commonly referred to as a ‘virtualenv’) 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.
To start using this and see more information: Virtual Environments docs.
Install Python Terminal Macos
This page is a remixed version of another guide,which is available under the same license.