debug topological sort

Author: dimitri-yatsenko

datajoint/schemas.py

@@ -412,6 +412,7 @@ def save(self, python_filename=None):
 
         :return: a string containing the body of a complete Python module defining this schema.
         """
+        self.connection.dependencies.load()
         self._assert_exists()
         module_count = itertools.count()
         # add virtual modules for referenced modules with names vmod0, vmod1, ...
@@ -477,11 +478,12 @@ def list_tables(self):
 
         :return: A list of table names from the database schema.
         """
+        self.connection.dependencies.load()
         return [
             t
             for d, t in (
                 full_t.replace("`", "").split(".")
-                for full_t in Diagram(self).topo_sort()
+                for full_t in self.connection.dependencies.topo_sort()
             )
             if d == self.database
         ]
@@ -530,7 +532,6 @@ def __init__(
 
 def list_schemas(connection=None):
     """
-
     :param connection: a dj.Connection object
     :return: list of all accessible schemas on the server
     """