execute any method at a specific directory

execAt.py

def execAt(targetdir):
    """
    execute the decorated method at specified directory
    """
    def wrapper(method):
        import os
        def func(*args, **kvargs):
            old = os.getcwd()
            os.chdir(os.path.abspath(targetdir))
            ret = method(*args, **kvargs)
            os.chdir(old)
            return ret
        return func
    return wrapper