[io][read_spectrum] add definition of default absorption and energy column names

est/io/utils/spec.py

@@ -31,6 +31,9 @@ from silx.io.spech5 import SpecFile
 from est.units import ur
 import functools
 import numpy
+import logging
+
+_logger = logging.getLogger(__name__)
 
 
 @functools.lru_cache(maxsize=2)
@@ -60,6 +63,13 @@ def read_spectrum(
     spec_file = SpecFile(spec_file)
     energy = None
     mu = None
+    if energy_col_name is None:
+        _logger.warning("Spec energy column name not provided. Try 'Column 1'")
+        energy_col_name = "Column 1"
+    if absorption_col_name is None:
+        _logger.warning("Spec absorption column name not provided. Try 'Column 2'")
+        absorption_col_name = "Column 2"
+
     for i_data, scan in enumerate(spec_file):
         # if a scan header 'title' is provided
         if scan_header_S is not None and scan_header_S != scan.scan_header_dict["S"]: