Matplotlib: cannot save PDF figure

Question

I had to delete and re-install again matplotlib a couple of times. Now, the modules work again, but I cannot save PDF figures. I get the following error:

No module named backend_pdf

I could try to remove matplotlib again and re-install. Can I just install the missing module?

Answer 1

The module it is referring to is an internal module in matplotlib; conceivably you could find the module on github and copy it to $MATPLOTLIBPATH/backends. But yes, if reinstalling matplotlib is an option, I would try that, because that error is strange and who knows what else is missing.