- Install Python 3 On Mac Os
- Mac Install Python 3.6
- Pip Install Python 3 Mac
- How To Install Python 3 In Mac
Python's website has a macOS Python 3 installer we can download and use. If we use the package installation, a python3 fill will be available in /usr/local/bin/. Aliasing is a must since the Python binary stored in /usr/bin/ can't be changed. What's nice about an alias is that it's specific to our command-line shell.
Install SciPy and Machine Learning Libraries. SciPy is the collection of scientific computing Python libraries needed for machine learning development in Python. In this step, you will install the Python 3 and SciPy environment. Install Python version 3.5 using macports. Open a terminal and type. The same source code archive can also be used to build the Windows and Mac versions, and is the starting point for ports to all other platforms. Download the latest Python 3 and Python 2 source. Gpg -verify Python-3.6.2.tgz.asc. This variant of Python 3.8 includes its own private copy of OpenSSL 1.1.1. The deprecated Apple-supplied OpenSSL libraries are no longer used. Then invoke python with python3 command, and use pip3 for installing additional libraries. Under the 'Python Releases for Mac OS X' heading, click the link for the Latest Python 3 Release - Python 3.x.x. As of this writing, the latest version was Python 3.8.4. Scroll to the bottom and click macOS 64-bit installer to start the download. When the installer is finished downloading, move on to the next step. Step 2: Run the Installer.
Download revit 2019 for mac. Maria Campbell provides a post on installing the latest version of Python on Mac OS Catalina and overriding the old default pre-installed version. And it even uses Homebrew and not some gnarly steps.
I finally did it. I successfully installed Python version 3.7.7 via Homebrew on my Maclaptop with OS Catalinainstalled.
For those of you that still might be trying to figure out how to do this, I will walk you through.
The reason why I was eager to make sure that I had the latest version installed was because I am working on publishing (open-source) teaching-related documentation on Read The Docs, and I need to have Python installed in order to be able to install the programs necessary to publish there.
The default 2.7.17 version of Python was retired this past January 2020. I had tried back then to replace it with Python 3+, but was unsuccessful at the time.
They key appears to be also adding the following at the bottom of the .zshrc file to update the path to the newly installed version of Python via Homebrew:
See all the steps in the blog post here and podcast here.
This is my preferred way to install Python and Jupyter notebook for doing scientific data analysis. There are many alternative ways of doing this that you can find on Google. I'm doing this on a MacBook Pro (Retina, 13-inch, Early 2015) with macOS High Sierra 10.13.3.
In the past, I used virtualenv to manage virtual environments with Python 2. Python3 has built-in handling of virtual environments, so I use that here instead. If you need to use Python 2, then you'll want to install virtualenv (see first link at the bottom).
Install Python 3 On Mac Os
Install Homebrew
All of these steps are done in the Mac OS Terminal, so start that first.
First install XCode:
Install Homebrew:
Mac Install Python 3.6
Open or create the file ~/.bash_profile and write:
Install Python 3
Mac operating systems by date. As of 2018-4-9, this will install Python 3 (I think previously it installed Python 2):
Set up virtual environment
By default, Python 3 comes with the ability to create virtual environments.
Pip Install Python 3 Mac
Make a folder to host your virtual envs:
Create a virtual env for Jupyter:
Run virtual environment and Jupyter
Start the virtual env:
How To Install Python 3 In Mac
Install packages for scientific computing:
Run Jupyter:
A browser window will open with the Jupyter file browser in your current working directory. Does google drive work on mac.
Exit Jupyter and virtual environment
Jupyter notebook will run in your terminal window until you close it (with Ctrl-C).
You can close the virtual environment with:
UPDATE 2018-04-19: A very useful (and IMO essential) addition to Jupyter notebook is the Table of Contents extension. I show how I install this in a different blog post.
References
- The steps above are mostly based on Maria Mele's 'Install Python 2.7, virtualenv and virtualenvwrapper on OS X Mavericks/Yosemite'
- Documentation on Python 3 virtual environments
- Explanation of how Homebrew installs Python — i.e. why Python 3 isn't linked to the command`python`, which motivated some of my deviations from the above blog post
