Merge pull request #226 from Helene/version_comparison

Fix Python version comparison issue

Author: Helene

source/zimonGrafanaIntf.py

@@ -208,7 +208,7 @@ def main(argv):
         print(msg)
         return
 
-    if sys.version < '3.8':
+    if (sys.version_info < (3, 8)):
         print(f'\nYor system running {sys.version} \n\nThe IBM Storage Scale bridge for Grafana requires Python3.8 or above. \
         \nRead the following instructions for possible solution: \
         \nhttps://github.com/IBM/ibm-spectrum-scale-bridge-for-grafana/wiki/What-to-do-if-your-system-is-on-a-Python-version-lower-than-3.8')