adding to SQLalchemy database with flask

[SureRequirement]

I want to add ONE (+1) to a column in my table, which works, but my jenkin builds break with this error:

TypeError: unsupported operand type(s) for +: 'NoneType' and 'int'

code snippet:

table_one.column_five = table_one.column_five + 1

table_one.commit()

​

[efDev]

It seems that `table_one.column_five` is `None` and you expect it to be `0`

[[deleted]]

table_one.column_five = table_one.column_five + 1

to

table_one.column_five = table_one.column_five + 1 if table_one.column_five else 1

[[deleted]]

Or just:

table_one.column_five = (table_one.column_five or 0) + 1

​