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diff --git a/yum/depsolve.py b/yum/depsolve.py
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index d8e3ecc6..046623d1 100644
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--- a/yum/depsolve.py
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+++ b/yum/depsolve.py
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@@ -1436,6 +1436,14 @@ class Depsolve(object):
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return False
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return x.sourcerpm == y.sourcerpm
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+ def _conflict_req(x, y):
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+ if y is None:
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+ return False
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+ for ydep in y.conflicts:
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+ if x.checkPrco('provides', ydep):
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+ return True
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+ return False
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+
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def _compare_arch_distance(x, y, req_compare_arch):
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# take X and Y package objects
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# determine which has a closer archdistance to compare_arch
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@@ -1488,15 +1496,9 @@ class Depsolve(object):
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continue
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unique_nevra_pkgs[pkg.pkgtup] = pkg
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pkgs = unique_nevra_pkgs.values()
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-
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- # Do a conflict filtering; get rid of those pkgs that reqpo conflicts
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- # with
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- if reqpo is not None:
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- pkgs = [pkg for pkg in pkgs
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- if not any(pkg.checkPrco('provides', conflict)
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- for conflict in reqpo.conflicts)]
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pkgresults = {}
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+ penalize = set()
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for pkg in pkgs:
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pkgresults[pkg] = 0
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@@ -1602,6 +1604,10 @@ class Depsolve(object):
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self.verbose_logger.log(logginglevels.DEBUG_4,
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_('common sourcerpm %s and %s' % (po, reqpo)))
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pkgresults[po] += 20
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+ if _conflict_req(po, reqpo):
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+ self.verbose_logger.log(logginglevels.DEBUG_4,
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+ _('conflict req %s and %s' % (po, reqpo)))
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+ penalize.add(po)
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if self.isPackageInstalled(po.base_package_name):
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self.verbose_logger.log(logginglevels.DEBUG_4,
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_('base package %s is installed for %s' % (po.base_package_name, po)))
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@@ -1686,6 +1692,13 @@ class Depsolve(object):
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pkgresults[po] += 1000
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pkgresults[po] += (len(po.name)*-1)
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+ # Bump down any packages that we identified as "last-resort" in such a
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+ # way that they all score below the worst overall score whilst keeping
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+ # their relative differences.
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+ shift = max(pkgresults.values()) - min(pkgresults.values()) + 1
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+ for po in penalize:
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+ pkgresults[po] -= shift
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+
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bestorder = sorted(pkgresults.items(),
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key=lambda x: (x[1], x[0]), reverse=True)
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self.verbose_logger.log(logginglevels.DEBUG_4,
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