On Fri, Mar 5, 2021, at 11:00 AM, Jonathan Brandmeyer wrote:
>
>
> On Fri, Mar 5, 2021 at 8:29 AM Mike Bayer <mike...@zzzcomputing.com> wrote:
>> __
>> Can I ask what documentation led you to believe that engine.connect() was
>> somehow being removed ?
>
> The guidance at [1] makes it clear that the connection is available as a
> transaction context manager. However, the guidance at [2] suggests that the
> preferred method is to use the engine.
>
> [1]:
> https://docs.sqlalchemy.org/en/14/changelog/migration_20.html#migration-core-connection-transaction
> [2]:
> https://docs.sqlalchemy.org/en/14/changelog/migration_20.html#many-choices-becomes-one-choice
OK, so the term "one choice" is clarified at the end, that there are "one and a
half" choices - that is, there are still two syntaxes that are appropriate, but
the "one choice" refers to the fact that you are always using an explicit
Connection:
# one choice!
with engine.begin() as conn:
result = conn.execute(stmt)
# OK one and a half choices (the commit() is 1.4 / 2.0 using future engine):
with engine.connect() as conn:
result = conn.execute(stmt)
conn.commit()
you're using the second pattern. "with conn.begin()" is also still valid
though is not strictly necessary in 2.0.
I will modify the verbiage now.
> Thanks,
> --
> Jonathan Brandmeyer
>
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> SQLAlchemy -
> The Python SQL Toolkit and Object Relational Mapper
>
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SQLAlchemy -
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http://www.sqlalchemy.org/
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