Re-added xlrd dependency for Python 3.6

DeepSpace2 · DeepSpace2 · commit 7f1cbf26bbca · 2022-06-15T15:36:23.000+03:00
diff --git a/setup.py b/setup.py
@@ -86,6 +86,7 @@ def find_version(*file_paths):
         'openpyxl>=2.5,<4',
         'colour>=0.1.5,<0.2',
         'jsonschema',
-        'pandas<2'
+        'pandas<2',
+        "xlrd>=1.0.0,<1.3.0 ; python_version<='3.6'"
     ]
 )
