remove wavelength from loading metadata

Author: yucongalicechen

Diff for: src/diffpy/labpdfproc/tools.py

@@ -6,7 +6,7 @@
 
 WAVELENGTHS = {"Mo": 0.71, "Ag": 0.59, "Cu": 1.54}
 known_sources = [key for key in WAVELENGTHS.keys()]
-METADATA_KEYS_TO_EXCLUDE = ["output_correction", "force_overwrite", "input", "input_paths"]
+METADATA_KEYS_TO_EXCLUDE = ["output_correction", "force_overwrite", "input", "input_paths", "wavelength"]
 
 
 def set_output_directory(args):

Diff for: tests/test_tools.py

@@ -336,7 +336,6 @@ def test_load_metadata(mocker, user_filesystem):
             "mud": 2.5,
             "input_directory": str(filepath),
             "anode_type": "Mo",
-            "wavelength": 0.71,
             "output_directory": str(Path.cwd().resolve()),
             "xtype": "tth",
             "method": "polynomial_interpolation",