Re: [Trac] Trac error: upgrade of trac.db.api.DatabaseManager: Unsupported database type "postgres"

Hi,

On 2025/02/19 16:53, 'Joost Kraaijeveld' via Trac Users wrote:
> Hi,
> 
> Suddenly I get this message from Trac:
> 
> "Trac Error
> 
> TracError: Unable to check for upgrade of trac.db.api.DatabaseManager:
> TracError: Unsupported database type "postgres"
> 
> The trac.log-file says:
> 
> 2025-02-17 09:04:58,282 Trac[env] INFO: -------------------------------
> - environment startup [Trac 1.6] --------------------------------
> 2025-02-17 09:04:58,589 Trac[postgres_backend] WARNING: Exception
> caught while retrieving libpq's version
> Traceback (most recent call last):
>   File "/usr/lib/python3/dist-packages/trac/db/postgres_backend.py",
> line 299, in _client_version
>     lib = ctypes.CDLL(_libpq_pathname)
>   File "/usr/lib/python3.13/ctypes/__init__.py", line 353, in __init__
>     if name.endswith(".fwork"):
>        ~~~~~~~~~~~~~^^^^^^^^^^
> TypeError: endswith first arg must be bytes or a tuple of bytes, not
> str
> 
> Anyone an idea about a solution? 
> 
> TIA,
> 
> Gr
> 
> Joost

The issue has been filed at https://trac.edgewall.org/ticket/13803.
I think that that is an issue of Python 3.13, but I've fixed it.

Please apply the changes of https://trac.edgewall.org/changeset/17863
to your Trac.

-- 
Jun Omae <[email protected]> (大前 潤)

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