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python - OperationalError when calling flask_migrate upgrade()

When trying to run the upgrade function of flask_migrate after initializing a new db, I get this error (in Ubuntu 18.04):

OperationalError: (2002, "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)")`

Before that I connect through mysql.connector.connect()

Which information is needed to maybe solve this problem?


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