all: reformat python files with python black

Part of !537.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/537

tools/generate-docs-nm-settings-docs-merge.py

@@ -61,28 +61,33 @@ _setting_name_order = [
     "wpan",
 ]
 
+
 def _setting_name_order_idx(name):
     try:
         return _setting_name_order.index(name)
     except ValueError:
         return len(_setting_name_order)
 
+
 def key_fcn_setting_name(n1):
     return (_setting_name_order_idx(n1), n1)
 
-def iter_keys_of_dicts(dicts, key = None):
+
+def iter_keys_of_dicts(dicts, key=None):
     keys = set([k for d in dicts for k in d.keys()])
-    return sorted(keys, key = key)
+    return sorted(keys, key=key)
+
 
 def node_to_dict(node, tag, key_attr):
     dictionary = collections.OrderedDict()
     if node is not None:
         for n in node.iter(tag):
             k = n.get(key_attr)
-            assert(k is not None)
+            assert k is not None
             dictionary[k] = n
     return dictionary
 
+
 def node_get_attr(nodes, name):
     for n in nodes:
         if n is None:
@@ -92,18 +97,20 @@ def node_get_attr(nodes, name):
             return x
     return None
 
+
 def node_set_attr(dst_node, name, nodes):
     x = node_get_attr(nodes, name)
     if x:
         dst_node.set(name, x)
 
+
 ###############################################################################
 
 gl_only_from_first = False
 
 argv = list(sys.argv[1:])
 while True:
-    if argv[0] == '--only-from-first':
+    if argv[0] == "--only-from-first":
         gl_only_from_first = True
         del argv[0]
         continue
@@ -119,54 +126,51 @@ gl_input_files = list(argv[1:])
 
 xml_roots = list([ET.parse(f).getroot() for f in gl_input_files])
 
-assert(all([root.tag == 'nm-setting-docs' for root in xml_roots]))
+assert all([root.tag == "nm-setting-docs" for root in xml_roots])
 
-settings_roots = list([node_to_dict(root, 'setting', 'name') for root in xml_roots])
+settings_roots = list([node_to_dict(root, "setting", "name") for root in xml_roots])
 
-root_node = ET.Element('nm-setting-docs')
+root_node = ET.Element("nm-setting-docs")
 
 for setting_name in iter_keys_of_dicts(settings_roots, key_fcn_setting_name):
 
     settings = list([d.get(setting_name) for d in settings_roots])
 
-    if     gl_only_from_first \
-       and settings[0] is None:
+    if gl_only_from_first and settings[0] is None:
         continue
 
-    properties = list([node_to_dict(s, 'property', 'name') for s in settings])
+    properties = list([node_to_dict(s, "property", "name") for s in settings])
 
-    if     gl_only_from_first \
-       and not properties[0]:
+    if gl_only_from_first and not properties[0]:
         continue
 
-    setting_node = ET.SubElement(root_node, 'setting')
+    setting_node = ET.SubElement(root_node, "setting")
 
-    setting_node.set('name', setting_name)
+    setting_node.set("name", setting_name)
 
-    node_set_attr(setting_node, 'description', settings)
-    node_set_attr(setting_node, 'name_upper', settings)
-    node_set_attr(setting_node, 'alias', settings)
+    node_set_attr(setting_node, "description", settings)
+    node_set_attr(setting_node, "name_upper", settings)
+    node_set_attr(setting_node, "alias", settings)
 
     for property_name in iter_keys_of_dicts(properties):
 
         properties_attrs = list([p.get(property_name) for p in properties])
 
-        if     gl_only_from_first \
-           and properties_attrs[0] is None:
+        if gl_only_from_first and properties_attrs[0] is None:
             continue
 
-        property_node = ET.SubElement(setting_node, 'property')
-        property_node.set('name', property_name)
-        property_node.set('name_upper', property_name.upper().replace('-', '_'))
+        property_node = ET.SubElement(setting_node, "property")
+        property_node.set("name", property_name)
+        property_node.set("name_upper", property_name.upper().replace("-", "_"))
 
-        x = node_get_attr(properties_attrs, 'format')
+        x = node_get_attr(properties_attrs, "format")
         if x:
-            property_node.set('type', x)
+            property_node.set("type", x)
         else:
-            node_set_attr(property_node, 'type', properties_attrs)
+            node_set_attr(property_node, "type", properties_attrs)
 
-        node_set_attr(property_node, 'default', properties_attrs)
-        node_set_attr(property_node, 'description', properties_attrs)
-        node_set_attr(property_node, 'alias', properties_attrs)
+        node_set_attr(property_node, "default", properties_attrs)
+        node_set_attr(property_node, "description", properties_attrs)
+        node_set_attr(property_node, "alias", properties_attrs)
 
 ET.ElementTree(root_node).write(gl_output_xml_file)