handle list of list for python-apt < 0.7.9 compatibility

10 years ago · 6fce4a9c3d
parent f9574cc318
commit 6fce4a9c3d
1 changed files with 2 additions and 1 deletions
--- a/packaging/os/apt.py
+++ b/packaging/os/apt.py
@ -180,7 +180,8 @@ def package_versions(pkgname, pkg, pkg_cache):
        # assume older version of python-apt is installed
        # apt.package.Package#versions require python-apt >= 0.7.9.
        pkg_cache_list = (p for p in pkg_cache.Packages if p.Name == pkgname)
-        pkg_versions = (p.VersionList for p in pkg_cache_list)
+        pkg_list_of_lists = (p.VersionList for p in pkg_cache_list)
+        pkg_versions = (p for l in pkg_list_of_lists for p in l)
        versions = set(p.VerStr for p in pkg_versions)

    return versions