python - SQLAlchemy Error in elements.py - ColumnClause nor Comparator has 'description' -


the full error is:

attributeerror: neither 'columnclause' object nor 'comparator' object has attribute 'description'

occuring @ line 544 in sqlalchemy\sql\elements.py in __ repr __

at line 735 in sqlalchemy\sql\elements.py in __ getattr__

i discovered problem because flask templates, iterates through orm object.__ dict__ output data table, not displaying particular row.

after digging python console , importing module, produce error trying print property of object.

from app.models import parcel o = parcel.query.get(1) o.parcelid #string field prints correct value, no problem o.yrbuilt #integer field, same, no problem o.streetnum #string field, throws above error

my model (db variable sqlalchemy(app)):

class parcel(db.model):     """     county parcel data     """     __tablename__ = 'parcel'     __table_args__ = {'schema':'gisdata'}     ogc_fid = db.column(db.integer, primary_key=true,         info={'widget': hiddeninput()}     )     parcelid = db.column(db.string(15))     unit_no = db.column(db.string(20))     streetnum = db.column(db.string(100))     streetname = db.column(db.string(255))     city = db.column(db.string(100))     mailaddr = db.column(db.string(255))     mailcity = db.column(db.string(100))     mailstate = db.column(db.string(5))     mailzip = db.column(db.string(20))     gp_plat = db.column(db.string(255))     district = db.column(db.string(255))     emv_bldg = db.column(db.integer())     yrbuilt = db.column(db.integer())

any clue i'm doing wrong here?

column should capitalized, in:

streetnum = db.column(db.string(100))

:)


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