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python - SyntaxError: Generator expression must be parenthesized

I just installed django and after installing that I created a django project and was trying to run django server by command:

python manage.py runserver

After that I'am getting error as: SyntaxError: Generator expression must be parenthesized

error screenshot

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TL; DR: Upgrade Django to version 1.11.17+ or 2.0+


This error is a known incompatibility related to Python issue #32012. Projects based on Django 1.11.16 and below will raise this exception when started with Python 3.7. A patch for this issue has been merged into Django 2.0 and 2.1 branches and cherry-picked later into Django 1.11.17.

Note: Python 3.7 is officially supported by Django 1.11.17 and above, including any 2.x branch.


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