Hi there - Please share at least what "the error" you've referred towards actually says. Include the complete stack trace please.
On Sat, Jul 7, 2018, 8:53 PM <[email protected]> wrote: > Sorry, I haven't been able to reproduce this in a way that I can provide a > test case, but SQLAlchemy 1.2.9 is causing a crash in my web application > (which uses Pyramid, pyramid-tm, and zope.sqlalchemy). I have confirmed > that it works with 1.2.8 - leaving everything else exactly the same and > only upgrading SQLAlchemy to 1.2.9 causes it to start crashing. > > Basically, I have a Comment object which has a relationship to a parent > Topic, and the topic has a relationship to a parent Group. The > relationships are very basic ones: > > comment.topic = relationship('Topic', innerjoin=True) > topic.group = relationship('Group', innerjoin=True) > > The crash occurs when accessing a property on a Comment, which itself uses > a property from its parent Topic, and that property uses a column from its > parent Group. So it seems like it may be related to the two-layer deep > relationship, with them both being lazy. Setting lazy=False on the > topic-group relationship (the "deeper" one) fixes the error, but does not > help if set on the comment-topic one. > > Please let me know if I can provide any more info to help narrow the cause > down. > > - Chad > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. > -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
