* gnu/packages/patches/vigra-python-compat.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/image.scm (vigra)[source](patches): New field.
[inputs]: Change PYTHON-2 and PYTHON2-NUMPY to PYTHON and PYTHON-NUMPY.
[native-inputs]: Change from PYTHON2-NOSE to PYTHON.
[arguments]: Adjust #:configure-flags accordingly.