Hi Mike, That's much more concise, thank you.
Previously I have always accessed the `_asdict()` private member. Thanks and best regards, Matthew On Thursday, January 12, 2023 at 11:00:58 AM UTC-8 Mike Bayer wrote: > > > On Thu, Jan 12, 2023, at 1:46 PM, mkmo...@gmail.com wrote: > > Hi Mike, > > Thanks. I have a few cases where it is easiest if I have a plain dict > instead of a RowMapping. For example RowMapping is immutable, and isn't > playing nicely with my json encoder. > > What is your preferred method to convert to a plain dict? > > > for row in result.mappings(): > d = dict(row) > > should do it > > the row was not mutable in 1.4, 1.3, etc. either, what did you do then ? > > > Row._asdict() > dict(RowMapping.items()) > something else? > > Thanks and best regards, > > Matthew > > > On Monday, January 9, 2023 at 6:00:08 PM UTC-8 Mike Bayer wrote: > > > > On Mon, Jan 9, 2023, at 8:50 PM, mkmo...@gmail.com wrote: > > Hello, > > It looks like in 2.0 we can no longer treat a row.Row as a dict. I have a > few cases where I want to do this, such as when I need to get a list of > columns, or when I don't know the column name in advance. > > rows = conn.execute(select(t.c.foo)).fetchall() > > rows[0].keys() # Not Allowed > > rows[0][some_unknown_column] # not allowed > > If we need to treat it as a dict, are we supposed to be calling: > > rows[0]._asdict() > > This works, but the only issue is that our IDEs flag this as accessing a > protected member of a class. Is there any alternative? > > Thanks and best regards, > > > you have more options here than previously on how to treat rows, as tuples > or mappings, either up front or on a per-row basis. the new API has been > available as of version 1.4. Relevant links include: > > 1. announcement of change and rationale > > > https://docs.sqlalchemy.org/en/14/changelog/migration_14.html#rowproxy-is-no-longer-a-proxy-is-now-called-row-and-behaves-like-an-enhanced-named-tuple > > 2. migration guide > > > https://docs.sqlalchemy.org/en/14/changelog/migration_20.html#result-rows-act-like-named-tuples > > 3. new tutorial coverage > > > https://docs.sqlalchemy.org/en/14/tutorial/dbapi_transactions.html#fetching-rows > > included is background on how to get mappings from a Row or how to get > RowMapping objects from a result up front using result.mappings(). > > > > > > > > Matthew > > > -- > 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 sqlalchemy+...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/10721070-ecf9-4438-87dc-a9ff6c13c0dan%40googlegroups.com > > <https://groups.google.com/d/msgid/sqlalchemy/10721070-ecf9-4438-87dc-a9ff6c13c0dan%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > > -- > 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 sqlalchemy+...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/624b2fdc-1c9d-4c3b-9424-f091b4be529an%40googlegroups.com > > <https://groups.google.com/d/msgid/sqlalchemy/624b2fdc-1c9d-4c3b-9424-f091b4be529an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > -- 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 sqlalchemy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/3dc91ef7-585d-4085-8825-31bc39ccd2edn%40googlegroups.com.
