pymysql.err.DataError: (1265, "Data truncated for column 'expected_resistance__after_connecting_phase_leads_in_ohms_' at row 1")

[nomi-gee]

Exception": "pymysql.err.DataError: (1265, \"Data truncated for column 'varnished' at row 1\")

It occurs when you have field-type Data and you changed it to Float the only way to resolve this error is to actually login to mysql select the database and then remove the column or if you have any database administration tool ALTER TABLE `tabTable Name` DROP COLUMN varnished;