Re: New Python bindings (notmuch2 module) fail to exclude tags

[David Bremner <david@tethera.net>]

"Jorge P. de Morais Neto" <jorge+list@disroot.org> writes:

> Hi.  I am trying to migrate my Python3 script to the new Python bindings
> (notmuch2 module).  However, I cannot obtain a count of messages
> matching a query excluding messages that have an exclude tag.  From the
> command line:
>     $ notmuch count 'is:.bf_spam'
>     0
>
> The CLI command correctly counts zero messages having '.bf_spam' tag,
> because all such messages also have the excluded 'spam' tag.  But from
> Python:
>
> $ python3
> Python 3.7.3 (default, Jul 25 2020, 13:03:44) 
> [GCC 8.3.0] on linux
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import notmuch2
>>>> nm_db=notmuch2.Database()
>>>> nm_db.count_messages('is:.bf_spam', exclude_tags=('spam',))
> 379
>>>> nm_db.count_messages('is:.bf_spam', exclude_tags=('spam',), omit_excluded=nm_db.EXCLUDE.FALSE)
> 379
>>>> nm_db.count_messages('is:.bf_spam', exclude_tags=('spam',), omit_excluded=nm_db.EXCLUDE.TRUE)
> 379
>>>> nm_db.count_messages('is:.bf_spam', exclude_tags=('spam',), omit_excluded=nm_db.EXCLUDE.ALL)
> 379
>>>> nm_db.count_messages('is:.bf_spam', exclude_tags=('spam',), omit_excluded=nm_db.EXCLUDE.FLAG)
> 379
>

It looks like a bug, but I'm not very expert with the python bindings,
so I've CCed the author of the new bindings. It would be great if you
could make a small test case that does not rely on your mail store.

d