According to the documentation from python.org, python 3.2 install on mac os requires an upgrade to tcl/tk 8.5.9 (for use of IDLE). In my haste, I have done both. Now my friend told me that python 3 is not recommended yet because only the built-ins and a few modules have been released for 3. The stable one so far is 2.7 (especially if one wants to make extensive use of a variety of modules). My machine has both 2.6.1 and 3.2 (because some OS services make use of 2.6.1 that comes as default with the OS).
1. How do i remove 3.2 completely to avoid any compatibility issues?
tcl/tk 8.5.9 was also installed and this is not the default. There was no verbose mode during installation, so I don't know whether it replaced the default one. If it did how bad can it be for the OS? and hence
2. If the above is really bad, how do i downgrade to the old version of tcl/tk?
In short, how do i bring my machine back to its original state? If anyone knows all the paths to the directories and files I can do it manually.
Thanks
Since Python installs using a package manager, you can use Suspicious Package to look at the install script and where everything is installed.
Be aware this is for demonstration purposes only. My environment is OSX 10.6.8 and am uninstalling python-3.2.2-macosx10.6.dmg.
sudo rm -Rfv /Library/Frameworks/Python.framework/ /Applications/Python\ 3.2/
cd /usr/local/bin/
sudo rm -fv 2to3 2to3-3.2 idle3 idle3.2 pydoc3 pydoc3.2 python3 python3-32 python3-config python3.2 python3.2-32 python3.2-config python3.2m python3.2m-config pythonw3 pythonw3-32 pythonw3.2 pythonw3.2-32 /Developer/Documentation/Python/Reference\ Documentation\ 3.2
I did the same (3.2 on a mac 10.6) and:
-Moved both the Python 3.2 folder and the ActiveState ActiveTcl folder from the Applications Folder to the Trash.
-Moved the Python.framework folder from the Library/Frameworks folder to the Trash.
Running System profiler shows only the 2.6 version of Python.
Marcos
just uninstall 3x version of python if you have already installed it. Eclipse has that option when you click "see whats already installed".
Install later 2.7 version. It works for me on my OS X 10.9.2 with Eclipse Juno.
Related
I want to install the latest version of emacs, but if I do this will it be in conflict with the version that comes pre-packaged with os x? Do I need to delete the native emacs? Also, it seems emacsforosx.com is a popular option, but I lot of people swear by homebrew... why would I go with one option over the other?
There is no reason to remove the system-supplied Emacs; any well-behaved, properly packaged third-party version will install fine alongside, not over, the system binaries and libraries.
Installing a current version of emacs is normal practice because the OSX provided version is outdated. You have a number of options, but I've found using the 'homebrew' method the easiest.
Due to changes in OSX 10.11, you need to take some additional steps when installing homebrew. If you already have homebrew installed, you will probably need to 'fix' the permissions on /usr/local. If you don't have homebrew installed, then there are some additional steps you will need to take to create the /usr/local path. This is documented on the hombrew site at El Capitan and Homebrew
I am using OS X El Capitan and my default Python version is 2.7.10.
How can I change the default version to Python 3.5 for Terminal use?
El Capitan comes bundled with 2.7 and is used internally, so its best you don't do anything with it.
The easiest way is to download the Mac installer,
https://www.python.org/ftp/python/3.5.0/python-3.5.0-macosx10.6.pkg
Install it by following the steps in the GUI, go to terminal and to start python type,
python3
For Brew, kindly refer to the document,
Installing Python on Mac OS X
It has a step-by-step guide to help you through the entire process of installing python 3.x
Regards.
Leave Python 2.X as it is.
Download Python either from https://www.python.org/ftp/python/3.5.0/python-3.5.0-macosx10.6.pkg or HomeBrew or via Anaconda from https://www.continuum.io/downloads.
add an alias in your ~/.bash_profile as follows
alias python='python3'
Hope that helped
you can use other answers and update your python version (actually you shouldnt update 2.7 because it makes problems for your applications that uses that version of python) OR
Use
Python3
Because you have it already
for your works like making virtual environments in that version.
My suggestion for you if you want to use different python versions on your system that could be so useful for ML and Data minings is USING
Pyenv
helps you manage you python versions.
...I've looked pretty carefully (I believe), and have been unsuccessful at getting an installation of Git for my Mac.
For various reasons, I'm running 10.6.8 of Mac OS X and will not be changing that anytime soon.
I've already gathered and installed the bundle exposed here:
https://help.github.com/articles/set-up-git
The installation instructions are pretty clear, and it's obvious to me that the package installed. But any attempts to use the git client from the command line result in an "Illegal Instruction" error.
I've sifted pretty carefully through information available here:
http://git-scm.com/book/en/Getting-Started-Installing-Git
There is another bundle that seems to be available. It is called "GitHub for Mac 1.7.5, but it appears to require Mac OS X 10.7 or later.
Has anyone else encountered this difficulty? Must I build from source?
I'm a couple of hours of reading and hacking into this effort? Is there something obvious that I've not considered?
Yes, I've had the same exact problem, and what I did is installed an earlier build from here:
https://code.google.com/p/git-osx-installer/
I'm running 10.6.8 and installed the newest build there, 1.8.4.2
SourceForge only has 1.9.0 and 1.8.5.2
http://sourceforge.net/projects/git-osx-installer/reviews?source=navbar
Someone on the reviews said they had trouble with both and went back to 1.7. I would try that if 1.8.4.2 doesn't work.
I was able to run the config commands without an illegal instruction error, at least.
I had this problem and was able to install a working version using Homebrew.
# first uninstall the broken version
# mount the DMG for the broken version using Finder
# "type" this with the tab key! it saves typing and fixes the version number
cd /Volumes/Git\ 2.0.1\ Snow\ Leopard\ Intel\ Universal/
./uninstall.sh
# make bash forget about the uninstalled binary
hash -r
cd
# now install the working version
# assumes you have Homebrew installed
brew install git
git version
I had this today on Snow Leopard after running the suggested git installer from git-scm. Really horrible. Found that installing Macports using their old Snow Leopard package and then
sudo port install git +svn +doc +bash_completion +gitweb
installs git plus its dependencies and git now works fine; version 1.9.3 installed and working on 10.6.8.
I had the same problem. There are various methods for downloading and installing git - Try macports or homebrew. The thing that finally worked for me was having xcode 3.2.6 installed with the additional command line tools - version 3.2 that comes with the leopard install disk wasn't enough. You can install xcode etc. from the disk and then run software update to upgrade it to 3.2.6.
The latest build for Snow Leopard in the official git-osx-installer repo is Git 2.3.5 currently. You can download it from http://sourceforge.net/projects/git-osx-installer/files/git-2.3.5-intel-universal-snow-leopard.dmg/download using web browser. This installation works for me on OS X 10.6.8.
Or you can check yourself for a newer version: http://sourceforge.net/projects/git-osx-installer/files/
Yes - it seems that it does not support the older OS version (mine was 10.6.8). I upgraded to the newest Mac OS 10.9.4 (the installation will take a while), reinstalled the Git software (note that it will ask for xcode to be installed, which I proceeded), and everything works fine from there. Hope this helps.
Ref : https://help.github.com/articles/does-github-for-mac-run-on-os-x-10-6-snow-leopard
To quote:
Does GitHub for Mac run on OS X 10.6 Snow Leopard?
No, GitHub for Mac requires OS X 10.7 (Lion) or higher.
We made this decision because the app relies on a number of
technologies which are not available in Mac OS X 10.6 or earlier. We
want to provide the best experience possible for the app's users, so
we've made the choice to only support 10.7 and above, and not make
earlier versions available.
Does anyone know how to downgrade the version for JRE/JDK from 1.6.0_24 to 1.6.0_18 on a Mac OSX thru Terminal? I need to downgrade in order to get a Java applet working in Firefox. Any help would be much appreciated.
That does not seem to be accurate any more.
I just managed to downgrade both JRE and compiler from Java 8 to 7 by looking into /Library/Java/JavaVirtualMachines, and moving away the directory with the highest version number, e.g.
sudo mv jdk1.8.0.jdk ~/Desktop/
That's easy. You have to remove de .jdk directory of the JDK 7 in /Library/Java/JavaVirtualMachines.
Now you only have to install the version you like.
=)
More info:
http://docs.oracle.com/javase/7/docs/webnotes/install/mac/mac-jdk.html#uninstall
If the older JDK isn't on your machine, you'd need to use the GUI and download the Java updater. The one closest to yours I could find was for Java 1.6.0_15 for Mac OS 10.5 (you didn't mention which Mac OS X version you were running):
Java for Mac OS X 10.5 Update 5
I didn't see any for Mac OS X 10.6. For that, you would probably have to download the updaters for each 10.6 release, and extract the JDK installer from the updater (using something like Pacifist
Oh, and if you haven't already, try running /Applications/Utilities/Java Preferences.app, which lets you change the default Java on your machine amongst the ones you have installed.
Hope this helps...
I removed the JavaAppletPlugin:
/Library/Internet Plug-Ins/JavaAppletPlugin.plugin
and all 1.8 JDKs:
/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk
/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk
Then I was able to re-install 1.7.
To downgrade your JDK you will need the JDK installation package and an app called Pacifist, available from http://www.charlessoft.com/ . The usage is pretty straight forward. I have used it to downgrade my JDK before.
Which version of firefox are you running?
I believe you can have more than one version of jdk/jre on a machine as long as you specify the path when compiling/running. However, the jvm is bundled with mac which makes this problematic.
This post may be helpful
How to install a specific JDK on Mac OS X?
These days MAC OS comes with latest java version(8 or later).
Even if you install the old versions, it points to the Newest version. All it need is just pointing to the old version. To downgrade to any version that is preinstalled is to create a symlink of that version.
Follow these simple steps to downgrade your java version.
(1) cd /System/Library/Frameworks/JavaVM.framework/Versions
(2) sudo bash
(3) rm Current
(4) ln -s 1.6.0/Contents/ Current
(5) java -version
This will point the java to last update in java6. And now update all the paths.
Hope it might be helpful and let me know if it works...:)
There is no downgrade mechanism for what you want to do.
The typical suggestion is to roll back to the version you want either through Time Machine or by reinstalling and only update selectively to the version you need by downloading explicitly from Apple and not updating Java through software update.
I'd recommend you look into the problem instead. If you cannot run this in Firefox, then try with Chrome or Safari. If it is the mixed code issue, then this is changed in the Java Settings panel in Programs -> Utilities in the Advanced panel.
I've had the very same problem. You can open the JRE 1.6.0_20 image file with Pacifist software and extract all the folders with the framework into the \System\Library\Frameworks\JavaVM.framework\Versions folders. After that the JRE should appear in your Applications/Utilities/Java Preferences JRE selection menu, where you can switch between the running JRE's.
I am using MacBook Pro Mac OS 10.5 with related version of XCode. I am new to this development environment. I am learning macports, and I read information about macports from http://www.macports.org/. But I am still confused what macports is after reading information from this site.
I am previous working on Windows and Linux, could anyone let me know what macports is (in easy words) and what is the similar item on Windows/Linux?
thanks in avdance,
George
macports is a way of getting executables and other compiled code installed on your computer without having to work out the details of compiling/linking each apllication.
It is equivalent to a package manager under Linux and other Unicies. There is no direct equivalent under Windows.
It is just a convenient way to install a lot of *nix soft on your mac book. They are installed separately (not overwriting) from binaries/daemons/libs already installed on your mac (by default in folder /opl/local). Also they are much fresher than those installed on your mac.
For example 10.6 ships with bash 3.2, but after running sudo port install bash, you will get version 4.x (to make it your default shell add /opt/local/bin/bash to file /private/etc/shells, run chsh -s /opt/local/bin/bash and reopen terminal).
Note other os x package managers: fink and homebrew (superuser question)