two errors in \site-packages\pracmln\wcsp\wcsp.py when import MLN

[NewBerd]

when I import MLN, I have two errors.

1. the package has no filepath 3rdparty\toulbar2-0.9.7.0\AMD64\Windows\toulbar2.exe ， but 3rdparty\toulbar2-0.9.7.0\x86_64\Windows\toulbar2.exe. whereas in methods:

def toulbar2_path():
    (osname, _, _, _, arch, _) = platform.uname()
    # 此处需要修改为x86_64，因为上面获取的为amd64，但是库中的路径却是x86_64
    arch = "x86_64"
    execname = 'toulbar2'
    en = is_executable(execname)
    if en is not None: # use the version in PATH if it can be found
        return en
    # fallback: try to load shipped toulbar2 binary
    if osname == 'Windows': execname += '.exe'
    return os.path.join('3rdparty', 'toulbar2-{}'.format(toulbar_version), arch, osname, execname)

2. sys.stdout has no attribute buffer:
   line 135

# 此处也需要修改，因为标准输出流中没有buffer，是直接使用的
def write(self, stream=sys.stdout):
    stream.write('{} {} {} {}\n'.format(len(self.variables), ' '.join(map(str, self.variables)), self.defcost, len(self.tuples)).encode())
    for t in list(self.tuples.keys()):
        stream.write('{} {}\n'.format(' '.join(map(str, t)), self.tuples[t]).encode())

the same as line 232