python-apt create_pin question

From	Antonio Russo <aerusso@aerusso.net>
Newsgroups	linux.debian.user
Subject	python-apt create_pin question
Date	2022-01-14 16:40 +0100
Message-ID	<DFwQi-8v6-15@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hello!

I'm trying to use apt_pkg to get a "best candidate" for a package, but with
slightly different constraints than I have set up in /etc/apt/preferences.d.

I am trying to use Policy.create_pin to do so, but cannot seem to get it working:

import apt_pkg

apt_pkg.init()
cache = apt_pkg.Cache(progress=None)
policy = apt_pkg.Policy(cache)
#policy.create_pin('origin', '', 'Debian', -1)
policy.create_pin('origin', 'apt', 'Debian', -1)
policy.init_defaults()

print([ (v, policy.get_priority(v)) for v in cache['apt'].version_list ])


All calls to get_priority return 500---not -1, as I am trying to get here.

I must be doing something silly.  I'd appreciate any help.

Best,
Antonio

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Thread

python-apt create_pin question Antonio Russo <aerusso@aerusso.net> - 2022-01-14 16:40 +0100
  Re: python-apt create_pin question Andrei POPESCU <andreimpopescu@gmail.com> - 2022-01-15 18:40 +0100
  Re: python-apt create_pin question Michael Lange <klappnase@freenet.de> - 2022-01-17 11:10 +0100
    Re: python-apt create_pin question Antonio Russo <aerusso@aerusso.net> - 2022-01-17 16:20 +0100

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