Package: python-matplotlib Version: 2.2.4-2 Control: block 937296 by -1 Control: tags -1 patch
pandas upstream dropped Python 2 support in 0.25 (before adding Python 3.8 support). As further discussed in #937296, the Debian package python-pandas is currently part of a big tangle of circular (build-)dependencies, but can be cut out of that tangle by removing the build-dependencies from python-apptools and matplotlib2.
Hence, please drop the build-dependency on python-pandas. (No other changes are required: it builds with the same 5 test failures as the existing version, and passes autopkgtests.)
