Hi @ptrblck,  while running python setup.py clean in master branch,
I am gettting the following error:
Building wheel torch-1.4.0a0+3657df3
Traceback (most recent call last):
  File "setup.py", line 759, in <module>
    extensions, cmdclass, packages, entry_points = configure_extension_build()
  File "setup.py", line 640, in configure_extension_build
    os.path.dirname(cmake_cache_vars['CUDA_CUDA_LIB']))
  File "/usr/lib/python3.6/posixpath.py", line 156, in dirname
    p = os.fspath(p)
TypeError: expected str, bytes or os.PathLike object, not bool

Not sure if I have to clone the repo and again and rebuild it. Would be great if you could please provide solution for it.