can not install it in win10 or centos7

[bbg221]

I download the code from the trunk line and install it with 'python setup.py install' into my win10 and centos7. all of them are failed.
"ImportError: No module named pathlib" is occurred first, after I fix it by 'pip install pathlib',

Traceback (most recent call last):
  File ".\setup.py", line 17, in <module>
    long_description=Path('README.rst').read_text(),
AttributeError: 'WindowsPath' object has no attribute 'read_text'

occurred in windows and

Traceback (most recent call last):
  File "setup.py", line 17, in <module>
    long_description=Path('README.rst').read_text(),
AttributeError: 'PosixPath' object has no attribute 'read_text'

occurred in centos7.

[WhyNotHugo]

pathlib is part of python itself, but only exists as of python 3.4.

You're probably using a very old python (3.3?) which we don't support. What's the output of python --versión.