Django manage.py runserver invalid syntax

Question

I am developing a web in Ubuntu using django. Everything works normal. Now, I want to change my computer which use Windows. When I try to runserver, it gives:

E:\DEGNet>py manage.py runserver
  File "manage.py", line 14
    ) from exc
         ^
SyntaxError: invalid syntax

E:\DEGNet>py
Python 3.6.3 (v3.6.3:2c5fed8, Oct  3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)]
 on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

As shown above, I have installed Python 3.6.3. I have installed django and other necessary library using pip3 too.

Edit: manage.py file, it is a default manage.py that I get when generating the project.

#!/usr/bin/env python
import os
import sys

if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "DEGNet.settings")
    try:
        from django.core.management import execute_from_command_line
    except ImportError as exc:
        raise ImportError(
            "Couldn't import Django. Are you sure it's installed and "
            "available on your PYTHONPATH environment variable? Did you "
            "forget to activate a virtual environment?"
        ) from exc
    execute_from_command_line(sys.argv)

Answer 1

I faced same problem but now solved with this cmd:

python3 manage.py runserver