Fail to install herald

[FrankDuan]

It seems gevent 1.0.2 can not support python 3. New vesion of gevent works for me (1.3.3).
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/command/build_ext.py", line 473, in _build_extensions_serial
self.build_extension(ext)
File "/var/folders/g3/txgyplxn6sq6bxrldphfzpmw0000gn/T/easy_install-669_u285/gevent-1.0.2/setup.py", line 234, in build_extension
File "/var/folders/g3/txgyplxn6sq6bxrldphfzpmw0000gn/T/easy_install-669_u285/gevent-1.0.2/setup.py", line 231, in gevent_prepare
File "/var/folders/g3/txgyplxn6sq6bxrldphfzpmw0000gn/T/easy_install-669_u285/gevent-1.0.2/setup.py", line 139, in configure_libev
File "/var/folders/g3/txgyplxn6sq6bxrldphfzpmw0000gn/T/easy_install-669_u285/gevent-1.0.2/setup.py", line 111, in make_universal_header
TypeError: unsupported operand type(s) for >>: 'builtin_function_or_method' and '_io.TextIOWrapper'. Did you mean "print(, file=<output_stream>)"?