[PATCH 3/4] tools/kvm_stat: use a more pythonic way to iterate over dictionaries

[Marc Hartmayer <mhartmay@xxxxxxxxxxxxxxxxxx>]

If it's clear that the values of a dictionary will be used then use
the '.items()' method.

Signed-off-by: Marc Hartmayer <mhartmay@xxxxxxxxxxxxxxxxxx>
Tested-by: Stefan Raspl <raspl@xxxxxxxxxxxxxxxxxx>
---
 tools/kvm/kvm_stat/kvm_stat | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index 2b7e83a5f7b8..c15950a6c4a4 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -1084,9 +1084,10 @@ class Tui(object):
         self.screen.clrtobot()
         stats = self.stats.get(self._display_guests)
         total = 0.
-        for key in stats.keys():
+        for key, values in stats.items():
             if key.find('(') is -1:
-                total += stats[key].value
+                total += values.value
+
         if self._sorting == SORT_DEFAULT:
             def sortkey((_k, v)):
                 # sort by (delta value, overall value)
@@ -1376,8 +1377,7 @@ def batch(stats):
         s = stats.get()
         time.sleep(1)
         s = stats.get()
-        for key in sorted(s.keys()):
-            values = s[key]
+        for key, values in sorted(s.items()):
             print('%-42s%10d%10d' % (key, values.value, values.delta))
     except KeyboardInterrupt:
         pass
@@ -1385,17 +1385,16 @@ def batch(stats):
 
 def log(stats):
     """Prints statistics as reiterating key block, multiple value blocks."""
-    keys = sorted(stats.get().keys())
+    sorted_stats = sorted(stats.get().items())
 
     def banner():
-        for k in keys:
-            print(k, end=' ')
+        for key, _ in sorted_stats:
+            print(key, end=' ')
         print()
 
     def statline():
-        s = stats.get()
-        for k in keys:
-            print(' %9d' % s[k].delta, end=' ')
+        for _, values in sorted_stats:
+            print(' %9d' % values.delta, end=' ')
         print()
     line = 0
     banner_repeat = 20
-- 
2.13.4