-=[*]=-/usr/local/Cellar$ brew install tinyarray

==> Downloading http://downloads.kwant-project.org/tinyarray/tinyarray-1.0.2.tar

Already downloaded: /Library/Caches/Homebrew/tinyarray-1.0.2.tar.gz

Warning: Formula#python is deprecated and will go away shortly.

==> python setup.py install --prefix=/usr/local/Cellar/tinyarray/1.0.2

Error: can't convert PythonDependency into String

Please report this bug:

    https://github.com/Homebrew/homebrew/wiki/troubleshooting

/usr/local/Library/Homebrew/formula.rb:531:in `basename'

/usr/local/Library/Homebrew/formula.rb:531:in `system'

/usr/local/Library/Taps/michaelwimmer-kwant/tinyarray.rb:11:in `install'

/usr/local/Library/Homebrew/build.rb:174:in `install'

/usr/local/Library/Homebrew/formula.rb:267:in `brew'

/usr/local/Library/Homebrew/formula.rb:587:in `stage'

/usr/local/Library/Homebrew/resource.rb:62:in `unpack'

/usr/local/Library/Homebrew/extend/fileutils.rb:21:in `mktemp'

/usr/local/Library/Homebrew/resource.rb:59:in `unpack'

/usr/local/Library/Homebrew/resource.rb:52:in `stage'

/usr/local/Library/Homebrew/formula.rb:585:in `stage'

/usr/local/Library/Homebrew/formula.rb:262:in `brew'

/usr/local/Library/Homebrew/build.rb:151:in `install'

/usr/local/Library/Homebrew/build.rb:45:in `main'

/usr/local/Library/Homebrew/build.rb:12

/usr/local/Library/Taps/michaelwimmer-kwant/tinyarray.rb:10