Move some harmless imports to file scope. NFC.

copycat/correspondence.py

@@ -1,4 +1,5 @@
 from conceptMapping import ConceptMapping
+from group import Group
 from letter import Letter
 from workspaceStructure import WorkspaceStructure
 import formulas
@@ -176,7 +177,6 @@ class Correspondence(WorkspaceStructure):
         for mapping in relevantMappings:
             if mapping.slippage():
                 self.accessoryConceptMappings += [mapping.symmetricVersion()]
-        from group import Group
         if isinstance(self.objectFromInitial, Group):
             if isinstance(self.objectFromTarget, Group):
                 bondMappings = formulas.getMappings(

copycat/group.py

@@ -1,5 +1,6 @@
 import logging
 
+from description import Description
 from workspaceObject import WorkspaceObject
 import formulas
 
@@ -40,7 +41,6 @@ class Group(WorkspaceObject):
         self.clampSalience = False
         self.name = ''
 
-        from description import Description  # gross
         if self.bondList and len(self.bondList):
             firstFacet = self.bondList[0].facet
             self.addBondDescription(

copycat/workspace.py

@@ -1,6 +1,9 @@
 import logging
 
 import formulas
+from bond import Bond
+from correspondence import Correspondence
+from letter import Letter
 from workspaceString import WorkspaceString
 
 
@@ -119,8 +122,6 @@ class Workspace(object):
 
     def numberOfUnreplacedObjects(self):
         """A list of all unreplaced objects in the inital string"""
-        from letter import Letter
-
         objects = [o for o in self.objects
                    if o.string == self.initial and isinstance(o, Letter)]
         objects = [o for o in objects if not o.replacement]
@@ -135,13 +136,9 @@ class Workspace(object):
 
     def numberOfBonds(self):
         """The number of bonds in the workspace"""
-        from bond import Bond
-
         return len([o for o in self.structures if isinstance(o, Bond)])
 
     def correspondences(self):
-        from correspondence import Correspondence
-
         return [s for s in self.structures if isinstance(s, Correspondence)]
 
     def slippages(self):