[PATCH 1/3] rteval: systopology: Fix offline NUMA node parsing

[Valentin Schneider <vschneid@redhat.com>]

An offline NUMA node will report in its cpulist an empty
string. Unfortunately, "".split(sep=x) with x != None returns a list
containing an empty string rather than an empty list, which causes
CpuList._expand_cpulist() to try to run int(''), which ends up in the
following exception:

  ValueError: invalid literal for int() with base 10: ''

Prevent this by adding an early empty-string check.

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
 rteval/systopology.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rteval/systopology.py b/rteval/systopology.py
index bf794ce..b2da7bb 100644
--- a/rteval/systopology.py
+++ b/rteval/systopology.py
@@ -103,6 +103,10 @@ class CpuList:
         don't error check against online cpus
         """
         result = []
+
+        if not cpulist:
+            return result
+
         for part in cpulist.split(','):
             if '-' in part:
                 a, b = part.split('-')
-- 
2.27.0