- The Python installation may require about 100MB of disk space to install. Once you’ve installed Python 3 you can have it alongside Python 2 without having to delete the latter from your Mac.
- Check out the full tutorial at https://www.MasterCode.online.
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 Catalina
installed.Amazon app for mac computer. For those of you that still might be trying to figure out how to do this, I will walk you through.
Best android ide mac. 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.Install Python On Macbook
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.
Mac OS X comes with Python 2.7. Before installing Python3, we will install Xcode and Homebrew. Xcode is an integrated development environment (IDE) for macOS containing a suite of software development tools developed by Apple for developing software for macOS.
This article will help you to set up a Python virtual environment on Mac OS or your Macbook. If you are a Mac user, you should know that Python 2.7.x comes pre-installed in your Macbook, but as that is required by your operating system, so you cannot modify it or update it and I would recommend that you don't use it at all.
Instead, you should set up a virtual environment for your development purpose. You must be thinking about why we need a virtual environment? So here are a few points in its favor:
- When we have a virtual environment, then we can install new packages inside the virtual environment which will not affect the operating system's python modules.
- We can have different versions of Python installed inside the virtual environment.
- You can set up a different virtual environment for each project for example if you are working on one project based on Tkinter module, some other projects based on Numpy module, then you can easily do this.
So to set up a virtual environment, we won't be using virtualenv or virtualenvwrapper module, which are most popular to set up a virtual environment.
But we will be using the venv module which comes as a default with Python 3.x version and is recommended to use for virtual environment creation.
Installing Python 3.8 on Mac OSX
We will use Homebrew to install Python 3.8 and will then move on to creating a virtual environment. If you don't have Homebrew installed on your Macbook, you can install Homebrew on your MacOSX and then use it to install Python 3.8 on your machine.
Once you have Homebrew set up, run the following command to install the latest version of Python:
Homebrew will also install pip for you which you can verify by running the pip3 command.
To verify the successful installation of Python 3.x version, run the
python3
command and the IDLE should start in your terminal.Use venv
to create Virtual Environment
As per the official documentation of
venv
module,The
venv
module provides support for creating lightweight “virtual environments” with their own site directories, optionally isolated from system site directories. Each virtual environment has its own Python binary (which matches the version of the binary that was used to create this environment) and can have its own independent set of installed Python packages in its site directories.We can run the following command to create a virtual environment:
This will create a virtual environment for you with the following files in the virtual environment directory my_env:
- bin
- include
- lib
- pip-selfcheck.json
- pyvenv.cfg
Python For Mac
To activate the virtual environment, run the following command:
This will start the virtual environment and you should see the name of the virtual environment added before the directory name as shown in the image below:
Now you can install anything in it, by running the
pip3 install
command, for example to install the requests module, run the following command:To get out of the virtual environment, run the
exit
command.Conclusion:
Install Python 3 On Mac From Command Line
With this you have the complete virtual environment setup, now create any .py script and try running it in the virtual environment. Also, you can install as many modules as you want in the virtual environment.