validity_thorough_unused.py 文件源码

def expandName(fn):
        # Many of the files we'll be testing are executables, and therefore
        # looked up on the path.  Try to look it up there (use the shell).
        # Note: This uses a deprecated interface, but boy is it handy.
        # If the returned status is non-zero, the lookup did not succeed.
        (status, result) = subprocess.getstatusoutput('which ' + fn)
        if status == 0:
            fn = result

        # The file may be a link, or the path may contain one...
        return os.path.realpath(fn)