Changes

=== The official way ===The most reliable way to install relax on your system is to use the official Python releases. The steps are:

=== Python === First check if you have the latest Python 2.7 installed, before installing the newest. Search in Spotlight for '''Terminal''', and write here<source lang="bash">which pythonpython --version</source>If needed, download the latest 2.7 version from the [http://www.python.org/download/ Official Python website].<br>This should be the DMG file labelled as '''Python 2.7.x Mac OS X 64-bit/32-bit x86-64/i386 Installer (for Mac OS X 10.6 and later)'''.<br>Open the DMG file, double click on the '''Python.mpkg''' file, and follow the instructions.<br>The most reliable way Python binary should now be located at '''/usr/local/bin/python'''. This is actually a symbolic link pointing to install '''/Library/Frameworks/Python.framework/Versions/2.7/bin/python'''. === Check out a relax branch ==={{historical svn}}You can see the different relax branches [http://svn.gna.org/viewcvs/relax on your system / here.]. '''Subversion''' is to use necessary, and should be shipped with [ http://subversion.apache.org/packages.html#osx OS X].<source lang="bash">which svnsvn --versioncd $HOME/Downloads</source>To check out trunk using the official Python releasessubversion client, simply type:<source lang="bash">svn co svn://svn.gna. The steps areorg/svn/relax/trunk relax_trunk</source>If this svn command does not work, try:<source lang="bash">svn co http://svn.gna.org/svn/relax/trunk relax_trunk</source>

# '''Python:''' First download the latest 2.7 version from the [http://www.python.org/download/ Official Python website].#* This should be the DMG file labelled as '''Python 2.7.x Mac OS X 64=== SCons -bit/32-bit x86-64/i386 Installer (for Mac OS X 10.6 and later)'''.#* Open the DMG file, double click on the '''Python.mpkg''' file, and follow the instructions.building relax=== #* The Python binary should now be located at '''/usr/local/bin/python'''. This is actually a symbolic link pointing required to '''/Library/Frameworks/Python.framework/Versions/2.7/bin/python'''.# '''wxPython:''' Download build the wxPython Development 2.9 DMG file from the [http://wxpython.org/download.php#unstable official wxPython website].#* The link should be called '''wxPython2.9-osx-cocoa-py2.7'''.#* Open the DMG file, double click on the '''wxPython2.9-osx-cocoa-py2.7.pkg''' file, and follow the instructionsrelax C modules.# '''Numpy:''' Download the latest Numpy DMG file from form the [http://sourceforge.net/projects/numpy/files/NumPy/ sourceforge download site].#* This should be the DMG file '''numpy-1www.x.x-py2.7-pythonscons.org-macosx10.3.dmg'''.#* Open the DMG file, double click on the '''numpy-1.x.x-py2.7.mpkg''' file, and follow the instructions.# '''Scipy:''' Download the latest Scipy DMG file from the [http://sourceforge.net/projects/scipy/files/scipy/ sourceforge download site].#* This should be the DMG file '''scipy-0.xx.x-py2.7-python.org-macosx10.3.dmg'''.#* Open the DMG file, double click on the '''scipy-0.xx.x-py2.7.mpkg''' file or equivalent, and follow the instructions.# '''Mpi4py:''' This is for running on multi-processor machines, for the analyses in relax which support it. Download the file from the [https://code.google.com/p/mpi4py/downloads/list mpi4py php SCons download site].#* Note, this will require an up to date version of XCode installed on your system, as the code will be compiled.#* Download the file labelled as called '''mpi4pyscons-12.x.x.tar.gz'''.<br>#** Open this through the Finder to unpackage the archive into the '''~/Downloads/mpi4pyscons-12.x.x/''' directory.<br>#** Open a terminal and type, replacing the x's with the current version, the following to get into the correct directory:<source lang="bash">cd $HOME/Downloads/scons-2.x.x</source>Then compile by:

$ cd Downloads/mpi4py-1sudo python setup.x.xpy install

#* Then to be sure the correct If you have several Python version is being usedversions, typethen compile with the wished python interpreter by typing:

$ sudo /Library/Frameworks/Python.framework/Versions/2.7/bin/python setup.py install

# '''SCons:''' This is required to build the relax C modules. Download the file form the [http://www.should install scons.org/download.php SCons download site].#* Download the file called '''scons-2.x.x.tar.gz'''.#* Open this through the Finder to unpackage the archive into the '''~/Downloadsusr/local/bin/scons-2.x.x/''' directory.#* Open a terminal and type, replacing the x's with the current version, the following to get into the correct directory:<br>

$ cd Downloads/which scons-1.x.x

#* Then === First try to build relax ===To compile the C modules in relax, several packages must be sure in place, including the correct Python version is being usedminfx package.<br>But we can just try to build relax now, typeand then solve the dependencies.<source lang="bash">cd $HOME/Downloads/relax_trunk# Then buildscons</source>You should get the message:'''The dependency 'minfx' has not been installed''' === Minfx and Bmrblib === # [[Minfx#Install | Minfx]]# [[Bmrblib#Install | Bmrblib]] Let's try to build again

cd $ sudo HOME/LibraryDownloads/Frameworks/Python.framework/Versions/2.7/bin/python setup.py installrelax_trunkscons

#* This will install scons into If you get the message '''/usr/local/bin/scons-bash: gcc: command not found''', you need to install [https://developer.#* To compile the C modules, the minfx package must be installed firstapple. Please see belowcom/xcode/ Apple Xcode].

Now === Scipy === First check if you will need to check that the correct Python and SCons versions are used when running relax or compiling have scipy installed in the C modulescurrent python installation. This can be checked by typing the following:

$ sudo pythonimport scipyscipy.__version__; scipy.__file__# Exit python with: Ctrl+d</source>If needed, download the latest Scipy DMG file from the [http://sourceforge.net/projects/scipy/usrfiles/libexecscipy/locatesourceforge download site].updatedb<br>$ which This should be the DMG file '''scipy-0.xx.x-py2.7-python.org-macosx10.3.dmg'''.<br>$ locate python | grep Open the DMG file, double click on the '''\/python$\|\/pythonscipy-0.xx.x-py2.7.$mpkg' | grep bin | xargs ls -alh'' file or equivalent, and follow the instructions. $ which scons=== wxPython ===$ locate First check if you have wxPzthon installed in the current python | grep '\/python$\|\/installation.<source lang="bash">pythonimport wxwx.__version__; wx..$' | grep bin | xargs ls -alh__file__# Exit python with: Ctrl+d

The first command updated If needed, download the locate database, wxPython Development 2.9 DMG file from the '''which''' commands show which version of Python and SCons will [http://wxpython.org/download.php#unstable official wxPython website].<br>The link should be executed if called '''pythonwxPython2.9-osx-cocoa-py2.7''' or .<br>Open the DMG file, double click on the '''sconswxPython2.9-osx-cocoa-py2.7.pkg''' are typed at the promptfile, and follow the locate commands instructions. === Mpi4py ==={{note|This will show all require an up to date version of XCode installed versions of Python and SConson your system, as the code will be compiled.}} This is for running on multi-processor machines, for the analyses in relax which support it.

=== Minfx and Bmrblib ===

Remember to check, if there are newer versions of # [[http://download.gna.org/minfx minfxMinfx#Install | Minfx] and [http://download.gna.org/bmrblib bmrblib]. <br>The # [https://gna.org/projects/minfx/ minfx[Bmrblib#Install | Bmrblib] and [https://gna.org/projects/bmrblib/ bmrblib] libraries can  Note that if you have multiple Python versions, the correct one must be installed on all Linux systems by typingspecified. It is best to use the full Python path, for example:

wget http:/Library/download.gna.org/minfxFrameworks/minfx-1.0.5.tar.gztar -xzf minfx-1.0.5.tar.gzcd minfx-1.0.5python setup.py installcd .Python. wget http:framework/Versions/download.gna2.org7/bmrblibbin/bmrblib-1.0.3.tar.gztar -xzf bmrblib-1.0.3.tar.gzcd bmrblib-1.0.3python setup.py installcd ..

>>> wx.__version__; wx.__file__

>>> bmrblib.__version__; bmrblib.__file__

>>> minfx.__version__; minfx.__file__

== Checking out a relax branch Test Installation ==If {{tip|After an installation you would like to play with relax branch rather than the main should really run an [http://www.nmr-relax.com/download.html relax downloads], the [http://subversion.tigris.org/ SubversionInstallation_test] program should first be installed. <br>You can see the different branches [http://svn.gna.org/viewcvs/relax/ here.] <br>First the relax sources can be checked out of the source code repository and the C modules compiled:<source lang="bash">cd /usr/local/svn co svn://svn.gna.org/svn/relax/branches/relax_disp relax_dispcd relax_dispscons}}

If the svn command does not work, try:<source lang="bash">== Multiple Python versions ===svn co http://svnFor more details, see [[Multiple Python versions]].gna.org/svn/relax/branches/relax_disp relax_disp</source>

 === Add You will need to check that the correct Python and SCons versions are used when running relax to path ===or compiling the C modules. This can be checked by typing the following:

cd $ sudo /usr/locallibexec/binlocate.updatedb$ which pythonln -s $ locate python | grep '\/usrpython$\|\/local/relax_disp/relax python..</source>Restart the terminal, to load the new variables.$' | grep bin | xargs ls -alh$ which sconsStart relax in GUI mode<source lang="bash">relax $ locate scons | grep '\/scons$' | grep bin | xargs ls -galh

= TEST INSTALLATION =You may still have 'minfx' installation problems when compiling the C modules if multiple Python version are present. <br>So it is recommended to open the '''/usr/local/bin/scons''' file and change the first line from '''/usr/bin/env python''' to '''/usr/local/bin/python''' so that the correct Python version is used.<br>After an installation Alternatively you should really run change your PATH environmental variable to have '''/usr/local/bin/''' at the start. SCons is always an [[Installation_test]]issue when multiple Python versions are installed.