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#!/usr/bin/python3
# example how to deal with the depcache
import sys
import apt
from apt.progress import InstallProgress
class TextInstallProgress(InstallProgress):
def __init__(self):
apt.progress.InstallProgress.__init__(self)
self.last = 0.0
def updateInterface(self):
InstallProgress.updateInterface(self)
if self.last >= self.percent:
return
sys.stdout.write(f"\r[{self.percent}] {self.status}\n")
sys.stdout.flush()
self.last = self.percent
def conffile(self, current, new):
print(f"conffile prompt: {current} {new}")
def error(self, errorstr):
print("got dpkg error: '%s'" % errorstr)
cache = apt.Cache(apt.progress.OpTextProgress())
fprogress = apt.progress.TextFetchProgress()
iprogress = TextInstallProgress()
pkg = cache["3dchess"]
# install or remove, the importend thing is to keep us busy :)
if pkg.is_installed:
print("Going to delete %s" % pkg.name)
pkg.mark_delete()
else:
print("Going to install %s" % pkg.name)
pkg.mark_install()
res = cache.commit(fprogress, iprogress)
print(res)
sys.exit(0)
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