Stable release

You can install climt by simply typing

$ pip install climt

This is the preferred method to install climt, as it will always install the most recent stable release. On Ubuntu Linux, you might need to prefix the above command with sudo. This command should work on Linux, Mac and Windows. For Mac and Windows, it is recommended to use the anaconda python distribution to make installation simpler.


If you are not using Anaconda, please ensure you have the libpython library installed. See the next section for instructions to install libpython.

Since by default pip attempts to install a binary wheel, you won’t need a compiler on your system.

If you don’t have pip installed, this Python installation guide can guide you through the process.

Installing from source

The sources for climt can be downloaded from the Github repo.

You can either clone the public repository:

$ git clone git://

Or download the tarball:

$ curl  -OL

Once you have a copy of the source, you can install it with:

$ pip install -r requirements_dev.txt
$ python install

Both commands may require the use of sudo.

Dependencies for source installations

climt depends on some easily installable libraries. For an installation from source, it also requires that C and fortran compilers be installed.

On Ubuntu Linux, for example, these dependencies can be installed by:

$ sudo apt-get install gcc
$ sudo apt-get install gfortran
$ sudo apt-get install python-dev
$ sudo pip install -U cython
$ sudo pip install -U numpy

use pip3 and python3-dev if you use Python 3.

On Mac OSX, it is recommended that you use anaconda as your python distribution. This will eliminate the need to install cython, numpy and python-dev. Once you have anaconda installed, you will need to do the following:

$ brew install gcc
$ export CC=gcc-x
$ export FC=gfortran-x

Where gcc-x,gfortran-x are the names of the C,Fortran compilers that Homebrew installs. Exporting the name of the compiler is essential on Mac since the default compiler that ships with Mac (called gcc, but is actually a different compiler) cannot compile OpenMP programs, like the dynamical core in climt.