[matplotlib-devel] Docs build hitting an ImportError - any guesses?

[Thomas K. <th...@kl...>]

The Launchpad daily builds have recently started failing on the docs build.
I get the error message "Error: matplotlib must be installed before
building the documentation", which means that there's an ImportError raised
when it tries to import matplotlib. Unfortunately, it hides any other
information about the ImportError, and I can't currently replicate it on my
own computer.

It builds the Python library, then attempts to build the docs with the
command:

cd doc ; MATPLOTLIBDATA=../lib/matplotlib/mpl-data/ \
        PYTHONPATH=../build/lib.linux-i686-2.7 ./make.py --small all

Does anyone know what might have changed a few days ago to cause this? It
built successfully on the 26th of February, there was a different problem
on the 27th, and when I resolved that, this failure started on the 28th.
I've had a look at the commit log, but nothing jumps out.

Thanks,
Thomas