The tests were silently skipped with Python 3.4. With Python 3.5, this caused
the xonsh build to fail.
* gnu/packages/shells.scm (xonsh)[arguments]: Disable the tests.
(("'xonsh\\.ply',") ""))
#t))))
(build-system python-build-system)
+ (arguments
+ '(;; TODO Try running run the test suite.
+ ;; See 'requirements-tests.txt' in the source distribution for more
+ ;; information.
+ #:tests? #f))
(inputs
`(("python-ply" ,python-ply)))
(home-page "http://xon.sh/")