Supress warning: RuntimeWarning: Mean of empty slice (#271)

* Supress warning: RuntimeWarning: Mean of empty slice

Signed-off-by: Jose Santos <josantos@login1.hpcfund>

* Move import to top

Signed-off-by: Jose Santos <josantos@login1.hpcfund>

* Specify type of RuntimeWarning in catcher. Safer approach

Signed-off-by: colramos-amd <colramos@amd.com>

* Comply to formatting

Signed-off-by: colramos-amd <colramos@amd.com>

---------

Signed-off-by: Jose Santos <josantos@login1.hpcfund>
Signed-off-by: colramos-amd <colramos@amd.com>
Co-authored-by: Jose Santos <josantos@login1.hpcfund>
Co-authored-by: colramos-amd <colramos@amd.com>

src/utils/parser.py

@@ -33,6 +33,7 @@ from utils import schema
 from utils.utils import error
 from pathlib import Path
 import logging
+import warnings
 
 # ------------------------------------------------------------------------------
 # Internal global definitions
@@ -142,7 +143,9 @@ def to_median(a):
     if a is None:
         return None
     elif isinstance(a, pd.core.series.Series):
-        return a.median()
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore", message="Mean of empty slice")
+            return a.median()
     else:
         raise Exception("to_median: unsupported type.")