apt/progress: Large update, introducing apt.progress.base.InstallProgress.

This contains many updates including the introduction of a new InstallProgress
class which replaces the old InstallProgress and DpkgInstallProgress classes.

1 files changed, 1 insertions, 1 deletions

diff --git a/apt/debfile.py b/apt/debfile.py
index e05233f4..fd6c1532 100644
--- a/apt/debfile.py
+++ b/apt/debfile.py
@@ -417,7 +417,7 @@ class DebPackage(object):
     def install(self, install_progress=None):
         """Install the package."""
         if install_progress is None:
-            return os.system("dpkg -i %s" % self.filename)
+            return os.spawnlp(os.P_WAIT, "dpkg", "dpkg", "-i", self.filename)
         else:
             try:
                 install_progress.start_update()