Ignoring errors when using robjects.

[Gribouillis]

If you look into rpy2 source code hor the callbacks.py module, you'll see that the last commit was about

Better handling of R string encodings

You could perhaps install the latest development version of rpy2 and see if it solves the problem.

Also it seems that some less drastic workarounds are described in the devs discussion about the encoding issue.