chore(format-source): autopep8 the code

.hg-format-source

+{"pattern": "__pkginfo__.py", "tool": "autopep8"}
+{"pattern": "docs/conf.py", "tool": "autopep8"}
+{"pattern": "setup.py", "tool": "autopep8"}
+{"pattern": "test/data/__init__.py", "tool": "autopep8"}
+{"pattern": "test/data/dbmodel/__init__.py", "tool": "autopep8"}
+{"pattern": "test/data/dbmodel/blog.py", "tool": "autopep8"}
+{"pattern": "test/data/schema/Company.py", "tool": "autopep8"}
+{"pattern": "test/data/schema/Dates.py", "tool": "autopep8"}
+{"pattern": "test/data/schema/State.py", "tool": "autopep8"}
+{"pattern": "test/data/schema/__init__.py", "tool": "autopep8"}
+{"pattern": "test/data/schema/schema.py", "tool": "autopep8"}
+{"pattern": "test/data/schema_post_build_callback.py", "tool": "autopep8"}
+{"pattern": "test/data2/__init__.py", "tool": "autopep8"}
+{"pattern": "test/data2/schema.py", "tool": "autopep8"}
+{"pattern": "test/unittest_constraints.py", "tool": "autopep8"}
+{"pattern": "test/unittest_diff.py", "tool": "autopep8"}
+{"pattern": "test/unittest_reader.py", "tool": "autopep8"}
+{"pattern": "test/unittest_schema.py", "tool": "autopep8"}
+{"pattern": "test/unittest_schema2dot.py", "tool": "autopep8"}
+{"pattern": "test/unittest_serialize.py", "tool": "autopep8"}
+{"pattern": "test/unittest_specialization.py", "tool": "autopep8"}
+{"pattern": "test/unittest_xy.py", "tool": "autopep8"}
+{"pattern": "yams/__init__.py", "tool": "autopep8"}
+{"pattern": "yams/_exceptions.py", "tool": "autopep8"}
+{"pattern": "yams/buildobjs.py", "tool": "autopep8"}
+{"pattern": "yams/constraints.py", "tool": "autopep8"}
+{"pattern": "yams/diff.py", "tool": "autopep8"}
+{"pattern": "yams/interfaces.py", "tool": "autopep8"}
+{"pattern": "yams/reader.py", "tool": "autopep8"}
+{"pattern": "yams/schema.py", "tool": "autopep8"}
+{"pattern": "yams/schema2dot.py", "tool": "autopep8"}
+{"pattern": "yams/serialize.py", "tool": "autopep8"}
+{"pattern": "yams/tools.py", "tool": "autopep8"}
+{"pattern": "yams/types.py", "tool": "autopep8"}
+{"pattern": "yams/xy.py", "tool": "autopep8"}

MANIFEST.in

@@ -17,3 +17,4 @@ include *.png
 include *.svg
 exclude .yamllint
 exclude .cube-doctor.yml
+exclude .hg-format-source

yams/buildobjs.py

@@ -959,7 +959,6 @@ class RelationDefinition(Definition):
         package: Optional[str] = None,
         **kwargs,
     ) -> None:
-
         """kwargs keys must have values in _RELATION_DEFINITION_PROPERTIES()"""
         if subject:
             self.subject = subject

yams/reader.py

@@ -147,7 +147,6 @@ class SchemaLoader:
         construction_mode: str = "strict",
         remove_unused_relation_types: bool = True,
     ) -> yams_types.Schema:
-
         """return a schema from the schema definition read from <module_names> (a
         list of (PACKAGE, module_name))
         """

yams/schema.py

@@ -393,7 +393,6 @@ class EntitySchema(PermissionMixIn, ERSchema):
         target_type: yams_types.DefinitionName = None,
         take_first: bool = False,
     ) -> yams_types.RelationDefinitionSchema:
-
         """return a relation definition schema for a relation of this entity type
 
         Notice that when target_type is not specified and the relation may lead

yams/schema2dot.py

@@ -284,7 +284,6 @@ def schema2dot(
     prophdlr=None,
     size=None,
 ) -> Any:
-
     """write to the output stream a dot graph representing the given schema"""
 
     # mypy: Incompatible types in assignment (expression has type