Cannot build on windows

[vasily-kirichenko]

d:\github\tlborm>build.py
  File "D:\github\tlborm\build.py", line 229
    def sh_eval(*cmd, codec='utf-8', dont_strip=False):
                          ^
SyntaxError: invalid syntax

[DanielKeep]

This isn't a problem with Windows: I build it on Windows. The only thing I can think of is that you're using an incompatible version of Python. I'm using Python 3.4.3.