| #!/usr/bin/python3 | |
| # example how to deal with the depcache | |
| import apt | |
| import sys | |
| 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("\r[%s] %s\n" % (self.percent, self.status)) | |
| sys.stdout.flush() | |
| self.last = self.percent | |
| def conffile(self, current, new): | |
| print("conffile prompt: %s %s" % (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) | |