fix: Fix parsing tuple unpacking assignment

References: #43

Author: pawamoy

src/pytkdocs/parsers/attributes.py

@@ -56,9 +56,12 @@ def get_pairs(nodes):
         return
 
     index = 0
-    while index < len(nodes) - 1:
+    while index < len(nodes):
         node1 = nodes[index]
-        node2 = nodes[index + 1]
+        if index < len(nodes) - 1:
+            node2 = nodes[index + 1]
+        else:
+            node2 = None
         if isinstance(node1, (ast.Assign, ast.AnnAssign)):
             if isinstance(node2, ast.Expr) and isinstance(node2.value, ast.Str):
                 yield node1, node2.value
@@ -82,7 +85,12 @@ def get_module_or_class_attributes(nodes):
     for assignment, string_node in get_pairs(nodes):
         string = dedent(string_node.s) if string_node else None
         if isinstance(assignment, ast.Assign):
-            names = [target.id for target in assignment.targets]
+            names = []
+            for target in assignment.targets:
+                if isinstance(target, ast.Name):
+                    names.append(target.id)
+                elif isinstance(target, ast.Tuple):
+                    names.extend([name.id for name in target.elts])
         else:
             names = [assignment.target.id]
         for name in names:

tests/fixtures/parsing/attributes.py

@@ -246,3 +246,6 @@ class Model(BaseModel):
 
     model_field: Optional[datetime] = None
     """A model field."""
+
+
+OK, WARNING, CRITICAL, UNKNOWN = 0, 0, 0, 0

tests/test_parsers/test_attributes.py

@@ -5,6 +5,21 @@
 from pytkdocs.parsers.attributes import get_class_attributes, get_instance_attributes, get_module_attributes
 
 
+class TestParsing:
+    """Test the parser in general."""
+
+    def setup(self):
+        """Setup reusable attributes."""
+        self.attributes = get_module_attributes(attr_module)
+
+    def test_parse_tuple_target(self):
+        """Assert can parse `a, b, c = 0, 0, 0`."""
+        assert "OK" in self.attributes
+        assert "WARNING" in self.attributes
+        assert "CRITICAL" in self.attributes
+        assert "UNKNOWN" in self.attributes
+
+
 class TestModuleAttributes:
     """Test the parser for module attributes."""