From 0c5ef89b82b3a8a085f0b503b4a54be33d34e81c Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@debian.org>
Date: Mon, 12 Jan 2009 18:28:18 +0100
Subject: * apt/cache.py: Introduce isVirtualPackage()

---
 apt/cache.py | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'apt')

diff --git a/apt/cache.py b/apt/cache.py
index ff3149f5..0065d14c 100644
--- a/apt/cache.py
+++ b/apt/cache.py
@@ -202,6 +202,11 @@ class Cache(object):
         finally:
             os.close(lock)
 
+    def isVirtualPackage(self, pkgname):
+        """Return whether the package is a virtual package."""
+        pkg = self._cache[pkgname]
+        return bool(pkg.ProvidesList and not pkg.VersionList)
+
     def getProvidingPackages(self, virtual):
         """
         Return a list of packages which provide the virtual package of the
-- 
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