Simulation broken

[Jörn Schönyan]

The documentation states:

"Simulate the transaction to calculate the dependencies, the required download size and the required disk space.

The corresponding properties of the AptTransaction will be updated."

That is plain wrong or buggy, there is no event like dependencies-changed fired and the properties are not changed at all. The problem is also described here: http://askubuntu.com/questions/399389/aptdaemon-simulation-not-updating-dependencies

I need a solution for the Lubuntu team, so I hope this bugs gets some attention.

Best regards!

[Jörn Schönyan (joern-schoenyan)]

After some digging, I found out that there is something missing in the documentation. After running simulate(), you need to run sync(). For example:

client = AptClient()
trans_upgrade = client.upgrade_system(False)
trans_upgrade.connect("dependencies-changed", printResult)
print('simulating')
trans_upgrade.simulate()
trans_upgrade.sync()