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Question on installing packages via the Python APT library

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Hunter Wittenborn

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Nov 7, 2021, 6:30:02 PM11/7/21
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Hi! I'm currently working on a project that's going to be using the Python APT library to handle some package installation, but I've got a question on how exactly a certain thing is working:

I've gotten everything up to the actual installation of packages done (up to the point of calling 'DepCache.commit()', but once I get to the 'commit()' stage I can't figure out how to control the output of the 'commit()' call in a way I'm wanting.

Going with the two classes that are specified for the 'commit()' function, I currently have the following implemented (I haven't exactly figured out what to put in each one yet, as I'm still trying to figure out all how this step works):


The 'tap.message' library being used inside both of those classes is just a message system for my program, they don't do anything particularly important that would affect anything at all.

The acquire_progress stage *appears* to be working fine, though the packages I downloaded were quite small so I didn't really get a chance to see if it just did some weird stuff like with install progress;

The problem with install_progress is that it's exiting my program, and then proceeding with installing packages, as if it starts installing packages in the background. How exactly should I go about waiting for it to finish though?

On a side note, I'm seeing this text whenever it (presumably) gets to the install part:

"""
custom fork found
got pid: 31873
got pid: 0
got fd: 4
"""

Is there any way I can hide that? I'm thinking it's from the 'fork()' call in the install_progress class, but the Python APT documentation is recommending not changing that [1], so I wasn't really sure.


Thanks, anything helps!



Sandro Tosi

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Nov 7, 2021, 8:20:03 PM11/7/21
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python-apt is not written nor maintained by this team, but rather
(from https://tracker.debian.org/pkg/python-apt) by the APT Dev team
and in particular by Julian Andres Klode (both in CC): please continue
the discussion with them
--
Sandro "morph" Tosi
My website: http://sandrotosi.me/
Me at Debian: http://wiki.debian.org/SandroTosi
Twitter: https://twitter.com/sandrotosi

Hunter Wittenborn

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Nov 8, 2021, 6:20:02 PM11/8/21
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That's my bad, I couldn't ever find a mailing list for APT (presumably because of that weird name), so this one seemed like the only option.


Should we continue the conversation here, or should I send a new message over there?
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