import error – Elektromagnetisme http://elektromagnetisme.no The home of FYS1120 Mon, 20 Oct 2014 11:23:54 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.3 28429679 Using the same script on installs with different EPD versions Mon, 14 May 2012 22:20:51 +0000 http://dragly.org/?p=751 Continue reading →]]> In the newest version of Enthought’s Python Distribution (EPD) on Ubuntu, the plotting package has been moved from enthought.mayavi.mlab to the shorter and more general mayavi.mlab. This does however mean that if you, like me, need to work with different versions of EPD on multiple systems, will experience the following error from time to time:

ImportError: No module named enthought.mayavi.mlab

Now, to avoid switching the import statement every time you switch systems, you can make Python check if one of the versions is installed during import. If it is not, we’ll tell it to try the other. This is done in this simple command:

try:
    from enthought.mayavi.mlab import *
except ImportError:
    from mayavi.mlab import *

Just replace any other similar import statements the same way and your code should once again be working across all your installations.

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