update constraints definition for 2.7 sqlalchemy (#630)

third_party/2.7/sqlalchemy/sql/schema.pyi

@@ -22,11 +22,22 @@ class SchemaItem(SchemaEventTarget, visitors.Visitable):
 
 class Table(DialectKWArgs, SchemaItem, TableClause):
     def __init__(self, name, metadata, *args, **kwargs): ...
-    def delete(self, *args, **kwargs): ...
-    def insert(self, *args, **kwargs): ...
-    def select(self, *args, **kwargs): ...
-    def update(self, *args, **kwargs): ...
+    @property
+    def key(self): ...
+    @property
+    def primary_key(self): ...
+    def __repr__(self): ...
+    def __str__(self): ...
+    def append_column(self, column): ...
+    def append_constraint(self, constraint): ...
+    def append_ddl_listener(self, event, listener): ...
+    def get_children(self, column_collections=True, schema_visitor=False, **kwargs): ...
+    def exists(self, bind=None): ...
+    def create(self, bind=None, checkfirst=False): ...
+    def drop(self, bind=None, checkfirst=False): ...
+    def tometadata(self, metadata, schema=None): ...
     c = ... # type: ColumnCollection
+    constraints = ... # type: Set[Constraint]
 
 
 class Column(SchemaItem, ColumnClause):
@@ -76,7 +87,17 @@ class Sequence(DefaultGenerator): ...
 class FetchedValue(_NotAColumnExpr, SchemaEventTarget): ...
 class DefaultClause(FetchedValue): ...
 class PassiveDefault(DefaultClause): ...
-class Constraint(DialectKWArgs, SchemaItem): ...
+
+class Constraint(DialectKWArgs, SchemaItem):
+    def __init__(self, name=None, deferrable=None, initially=None): ...
+    def __contains__(self, x): ...
+    def contains_column(self, col): ...
+    def keys(self): ...
+    def __add__(self, other): ...
+    def __iter__(self): ...
+    def __len__(self): ...
+    def copy(self, **kw): ...
+
 class ColumnCollectionMixin(object):
     columns = ...  # type: Any
     def __init__(self, *columns, **kw): ...

third_party/2.7/sqlalchemy/sql/selectable.pyi

@@ -4,6 +4,7 @@ from .elements import ClauseElement, TextClause, ClauseList, \
     Grouping, UnaryExpression, BindParameter
 from .annotation import Annotated
 from .visitors import Visitable
+from .. import util
 
 def subquery(alias, *args, **kwargs): ...
 def alias(selectable, name=..., flat: bool=...): ...
@@ -47,7 +48,20 @@ class Join(FromClause): ...
 class Alias(FromClause): ...
 class CTE(Generative, HasSuffixes, Alias): ...
 class FromGrouping(FromClause): ...
-class TableClause(Immutable, FromClause): ...
+
+class TableClause(Immutable, FromClause):
+    def __init__(self, name, *columns): ...
+    def _export_columns(self): ...
+    @util.memoized_property
+    def description(self): ...
+    def append_column(self, c): ...
+    def get_children(self, **kwargs): ...
+    def count(self, whereclause=None, **params): ...
+    def insert(self, values=None, inline=False, **kwargs): ...
+    def update(self, whereclause=None, values=None, inline=False, **kwargs): ...
+    def delete(self, whereclause=None, **kwargs): ...
+    @property
+    def _from_objects(self): ...
 
 class ForUpdateArg(ClauseElement): ...
 class SelectBase(Executable, FromClause): ...