You might have decouple installed in additional to python-decouple (two different packages).
If that is the case simply uninstall decouple
pip uninstall decouple
And ensure you have python-decouple installed
pip install python-decouple
You might have decouple installed in additional to python-decouple (two different packages).
If that is the case simply uninstall decouple
pip uninstall decouple
And ensure you have python-decouple installed
pip install python-decouple