Fix some of the return values

wrappers/python/simtk/openmm/app/amberprmtopfile.py

@@ -195,6 +195,7 @@ class AmberPrmtopFile(object):
 
         Returns
         -------
+        System
             the newly created System
         """
         if self._prmtop.chamber:

wrappers/python/simtk/openmm/app/charmmparameterset.py

@@ -613,10 +613,6 @@ class CharmmParameterSet(object):
         Example
         -------
         >>> params = CharmmParameterSet('charmm.prm').condense()
-
-        Returns
-        -------
-        self
         """
         # First scan through all of the bond types
         self._condense_types(self.bond_types)

wrappers/python/simtk/openmm/app/charmmpsffile.py

@@ -417,9 +417,9 @@ class CharmmPsfFile(object):
 
         Returns
         --------
-        title : str
+        str
             The label of the PSF section we are parsing
-        pointers : int/tuple of ints
+        int/tuple of ints
             If one pointer is set, pointers is simply the integer that is
             value of that pointer. Otherwise it is a tuple with every pointer
             value defined in the first line

wrappers/python/simtk/openmm/app/element.py

@@ -120,7 +120,7 @@ class Element(object):
 
         Returns
         -------
-        element : Element
+        Element
             The element whose atomic mass is closest to the input mass
         """
         # Assume masses are in daltons if they are not units

wrappers/python/simtk/openmm/app/forcefield.py

@@ -678,8 +678,9 @@ def _matchResidue(res, template, bondedToAtom):
 
     Returns
     -------
-    a list specifying which atom of the template each atom of the residue corresponds to,
-    or None if it does not match the template
+    list
+        a list specifying which atom of the template each atom of the residue
+        corresponds to, or None if it does not match the template
     """
     atoms = list(res.atoms())
     if len(atoms) != len(template.atoms):

wrappers/python/simtk/openmm/app/gromacstopfile.py

@@ -580,6 +580,7 @@ class GromacsTopFile(object):
 
         Returns
         -------
+        System
              the newly created System
         """
         # Create the System.

wrappers/python/simtk/openmm/app/modeller.py

@@ -12,7 +12,7 @@ Contributors:
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
+to deal in the Software without restricsRetion, including without limitation
 the rights to use, copy, modify, merge, publish, distribute, sublicense,
 and/or sell copies of the Software, and to permit persons to whom the
 Software is furnished to do so, subject to the following conditions:
@@ -653,6 +653,7 @@ class Modeller(object):
 
         Returns
         -------
+        list
              a list of what variant was actually selected for each residue,
              in the same format as the variants param
         """

wrappers/python/simtk/openmm/app/topology.py

@@ -97,6 +97,7 @@ class Topology(object):
 
         Returns
         -------
+        Chain
              the newly created Chain
         """
         if id is None:
@@ -120,7 +121,8 @@ class Topology(object):
 
         Returns
         -------
-             the newly created Resid
+        Residue
+             the newly created Residue
         """
         if id is None:
             id = str(self._numResidues+1)
@@ -146,6 +148,7 @@ class Topology(object):
 
         Returns
         -------
+        Atom
              the newly created Atom
         """
         if id is None: