name 'RectangleMesh' is not defined

Question

I've got two workstations, one iMac, and another with Debian wheezy. I've installed fenics on both of them, in the case of the Debian machine using "sudo apt-get install fenics".

In the case of the Debian machine, when i run RectangleMesh(x0,u0,x1,y1,xn,yn) in python i get the error: NameError: name 'RectangleMesh' is not defined. When running the exact same piece of code on the iMac it produces no such error.

What could be the error? Is there a way to check the current version number of fenics installed?

Answer 1

See:

http://fenicsproject.org/qa/4034/test-fenics-version?show=4034#q4034

to check the fenics version.

To install the most recent released version, see:

http://fenicsproject.org/download/ubuntu_details.html

Comments

Thank you.

I ran dolfin-version, and apparently sudo apt-get install fenics installed fenics 1.0.0. and not 1.5.0.

I already found http://fenicsproject.org/download/ubuntu_details.html, suspecting it might be a version issue. Following the instructions

sudo add-apt-repository ppa:fenics-packages/fenics
sudo apt-get update
sudo apt-get install fenics
sudo apt-get dist-upgrade

has no effect as i get the return

W: Failed to fetch http://ppa.launchpad.net/fenics-packages/fenics/ubuntu/dists/wheezy/main/source/Sources 404 Not Found

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The FEniCS PPA is only for Ubuntu, not Debian. The Debian wheezy repository only has FEniCS 1.0.0 packages, but you can use for instance the fenics-install.sh script to build FEniCS and its dependencies from source.

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Thank you Johannr, i realized that and used the fenics-install.sh script to build FEniCS as you propose. It works great, except i get an ImportError if i try to import and use scipy.