SyntaxError: invalid syntax (print("Progress: {:.1f}%".format(((index + 1) / len(pids))*100), end='\r'))

[KinG-InFeT]

└─ $ ▶  php translate_python_to_php 
running [ /home/vluongo/Scaricati/py2php/py2php down.py > down.php ]
Traceback (most recent call last):
  File "/home/vluongo/Scaricati/py2php/py2php", line 1895, in <module>
    print translate(file_name, module_name),
  File "/home/vluongo/Scaricati/py2php/py2php", line 1725, in translate
    mod = compiler.parseFile(file_name)
  File "/usr/lib/python2.7/compiler/transformer.py", line 47, in parseFile
    return parse(src)
  File "/usr/lib/python2.7/compiler/transformer.py", line 51, in parse
    return Transformer().parsesuite(buf)
  File "/usr/lib/python2.7/compiler/transformer.py", line 128, in parsesuite
    return self.transform(parser.suite(text))
  File "<string>", line 130
    print("Progress: {:.1f}%".format(((index + 1) / len(pids))*100), end='\r')
                                                                        ^
SyntaxError: invalid syntax
failed!