115
votes
Accepted
How to add permanent environment variable in zsh
Bash
Since Bash is typically the default shell you can open up this file in your home directory:
$ vim ~/.bash_profile
And add your variable to this file:
export ENV_VAR=12345
You can do this ...
- 4,878
110
votes
How to install specific version of python on OS X
For Python in macOS, use pyenv:
brew install pyenv
To install a specific Python version, run:
pyenv install <version>
To select a version for every command run with the current folder:
pyenv ...
- 1,211
92
votes
Accepted
Homebrew: Rollback from Python 3.7 to Python 3.6.5.x?
If you still have the previous versions available, you can just use
brew switch python 3.6.5_1
- 1,044
62
votes
Accepted
Remove and Reinstall Python on Mac -- Can I trust these old references?
So, I ended up removing all python installations, and reinstalling things via Homebrew.
which python ---> /Library/Frameworks/Python.framework/Versions/2.7/bin/python
Delete the entire Python....
- 1,803
62
votes
Homebrew: Rollback from Python 3.7 to Python 3.6.5.x?
If you don't have previous version to switch to, you can install Python 3.6.5_1 from previous formula this way:
$ brew unlink python
$ brew install https://raw.githubusercontent.com/Homebrew/...
- 721
57
votes
How to install specific version of python on OS X
$ brew install python3
is equals follow
$ brew install https://github.com/Homebrew/homebrew-core/blob/master/Formula/python.rb
So. if you want to install a specific version then, you must check ...
- 571
46
votes
Accepted
Do Terminal processes stop if Mac sleeps?
All processes get paused when the system goes to sleep, independent of whether the process is part of macOS, an application or some code you wrote on your own. After the system wakes up again, all ...
- 103k
45
votes
How to add permanent environment variable in zsh
First, execute in a terminal with zsh (Z Shell):
echo 'export ENV_VAR=12345' >> ~/.zshenv
Then, reload changes:
source ~/.zshenv
Finally, test if your new variable is set:
echo $ENV_VAR
...
- 551
43
votes
Do Terminal processes stop if Mac sleeps?
Yes, terminal processes like a python script will stop execution when the machine goes into idle sleep.
To prevent your machine from sleeping without changing the settings you can just use the ...
- 531
37
votes
Accepted
Is /usr/bin/python3 provided with macOS Catalina?
Kinda. A clean installation of Catalina includes a /usr/bin/python3 binary, but it's a stub for installing the command line developer tools, which includes Python 3.
If/when the command line ...
- 2,815
37
votes
Accepted
How to make python 3.11 my default python3 with brew
Note: This applies to any versioned Python installation with Homebrew
After installing Python 3.11, you are given the location of the bin folder with Python 3.11:
==> Caveats
Python has been ...
- 10k
31
votes
How to install specific version of python on OS X
Install the required version:
% brew install [email protected]
% brew list | grep python
% brew ls [email protected]
% ls -l /usr/local/Cellar/[email protected]/3.7.8_1/bin/python3.7
Add a soft link to /usr/local/bin/...
- 419
31
votes
Remove and Reinstall Python on Mac -- Can I trust these old references?
My Python version was 3.6, I wanted to upgrade to 3.7 (In case you have similar requirements). I am using macOS version 10.12.6 and simply uninstalling and re-installing worked for me:
brew uninstall ...
- 311
23
votes
Will macOS Big Sur remove the default Python installation for good?
No, on Apple Macs being shipped with Big Sur, Python 2 and Python 3 are both still included.
$ which python
/usr/bin/python
$ python --version
Python 2.7.16
$ which python3
/usr/bin/python3
$ ...
- 339
18
votes
Accepted
Deleted /usr/local/bin and /usr/bin on OS X
/usr/bin is where most of the Terminal commands are stored (e.g. clear). When your brother deletes everything in /usr/bin, he basically deletes most of the executable files that the Terminal and the ...
- 3,327
18
votes
Do Terminal processes stop if Mac sleeps?
Note that there is a difference between computer sleep and display sleep (both controlled in the Energy Saver pane of System Preferences). When the display is sleeping but the computer is not, ...
- 191
16
votes
Prevent "<application> quit unexpectedly" message on sigquit
You can also make the message appear as a notification instead:
defaults write com.apple.CrashReporter UseUNC 1
- 559
16
votes
Where is my .bash_profile located? (Mac OS 10.10.5)
Navigate to your user folder in Finder: /Users/username/
Make hidden files visible (the shortcut is ShiftCmd.)
Right click .bash_profile and Open With... your text editor of choice.
ShiftCmd. one ...
- 1,172
15
votes
Accepted
Restore Python 2.7 on Monterey 12.3?
The Python Release Python 2.7.18 | Python.org download page has a macOS 64-bit installer download that replaces the missing interpreter.
- 618
15
votes
How to make python 3.11 my default python3 with brew
On macOS Ventura & Sonoma on Apple Silicon
To install homebrew's version of python3:
brew install python3
This installs brew's version of python3.x but does not override the the link to macOS's ...
- 313
15
votes
How to confirm MacOS "system" Python version
Homebrew installations are independent of macOS, you can neither update system components via Homebrew nor remove them with brew uninstall.
- 103k
14
votes
Homebrew: Rollback from Python 3.7 to Python 3.6.5.x?
Two options
To recover a previously installed Python version:
brew switch python 3.x.x_x # Ex. 3.6.5_1
Use brew info python to see what you have previously installed
To make a clean install of ...
- 997
13
votes
Is /usr/bin/python3 provided with macOS Catalina?
Yes - that file is part of the system image and ships on every Mac.
It is a stub app that calls xcode-select --install which installs all command line developer tools, which includes python3 binary in ...
- 239k
13
votes
How to install python3.7 on a mac (mojave using homebrew
Try using pyenv. This library will help you switch between different versions of Python (in case you need to run Python 2.x for some reason, and in anticipation of Python 4.0 coming).
Install pyenv
...
- 131
13
votes
Accepted
Will macOS Big Sur remove the default Python installation for good?
No, it didn't get removed in Catalina, nor in Big Sur, and not even on the initial release of Monterey, but finally in macOS Monterey 12.3 it does get removed: https://developer.apple.com/...
- 1,008
13
votes
M1 mac: mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e') - python
What it worked for me was:
pip uninstall lxml
ARCHFLAGS="-arch arm64" pip install lxml --compile --no-cache-dir
- 131
12
votes
Accepted
Where is my .bash_profile located? (Mac OS 10.10.5)
You can edit bash profile with vi ~/.bash_profile make sure the PATH was not added in ~/.bashrc or to /etc/profile
To remove the PATH you can either remove it from the file where it was added, or ...
- 386
12
votes
Accepted
M1 mac: mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e') - python
I use conda from miniforge for python packages etc. This works.
This means that I don't know first hand how pypi works, I just have looked at the documentation. I think by default it looks for ...
- 30.6k
9
votes
Accepted
When updating to macOS Catalina will the default Python installation get removed from my system?
From Xcode 11 Beta Release Notes:
Scripting language runtimes such as Python, Ruby, and Perl are included in macOS for compatibility with legacy software. In future versions of macOS, scripting ...
- 103k
8
votes
How to install specific version of python on OS X
This seems like a much easier approach AND keeps away from /usr/local/bin !!
https://github.com/sashkab/homebrew-python
I haven't tested it, but it promises to be able to install any version (and ...
- 181
Only top scored, non community-wiki answers of a minimum length are eligible