Where do I get a SECRET_KEY for Flask?

The secret key is needed to keep the client-side sessions secure. You can generate some random key as below:

>>> import os
>>> os.urandom(24)
'\xfd{H\xe5<\x95\xf9\xe3\x96.5\xd1\x01O<!\xd5\xa2\xa0\x9fR"\xa1\xa8'

Just take that key and copy/paste it into your config file

SECRET_KEY = '\xfd{H\xe5<\x95\xf9\xe3\x96.5\xd1\x01O<!\xd5\xa2\xa0\x9fR"\xa1\xa8'

See Sessions documentation

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