508ea4c20f4672707d2ffc007f1dfc869eb1872f,pysos/target.py,FileTarget,mtime,#FileTarget#,142

Before Change

        return os.path.getsize(self._filename)
    
    def mtime(self):
        return os.path.getmtime(self._filename)

    def sig_file(self):
        if self._sig_file is not None:
            return self._sig_file

After Change

            raise RuntimeError("{} or its signature does not exist.".format(self._filename))
    
    def mtime(self):
        if os.path.isfile(self._filename):
            return os.path.getmtime(self.fullname())
        elif os.path.isfile(self.sig_file()):
            with open(self.sig_file()) as md5:
                line = md5.readline()
                _, t, _, _ = line.rsplit("\t", 3)
                return t.strip()
        else:
            raise RuntimeError("{} or its signature does not exist.".format(self._filename))

    def sig_file(self):
        if self._sig_file is not None:
            return self._sig_file
        // If the output path is outside of the current working directory

Instances