Add requires_dependency scipy in test_xml.py
@@ -9,6 +9,7 @@ from ...serialization import xml_to_source_library, UnknownModelError
@requires_data('gammapy-extra')
+@requires_dependency('scipy')
def test_complex():
xml_str = '''<?xml version="1.0" encoding="utf-8"?>
<source_library title="source library">
