From 9ce66875046c03b6123280ab56149c1536d3edff Mon Sep 17 00:00:00 2001
From: Robert Bradshaw <robertwb@math.washington.edu>
Date: Fri, 22 Apr 2011 12:28:00 -0700
Subject: [PATCH] remove trailing whitespace

---
 Cython/Compiler/Main.py                |   2 +-
 Cython/Compiler/ModuleNode.py          |  10 +-
 Cython/Compiler/Nodes.py               |  18 +-
 Cython/Compiler/ParseTreeTransforms.py |   4 +-
 Cython/Compiler/Parsing.py             |   4 +-
 Cython/Compiler/PyrexTypes.py          | 360 ++++++++++++-------------
 Cython/Compiler/Symtab.py              |  24 +-
 7 files changed, 211 insertions(+), 211 deletions(-)

diff --git a/Cython/Compiler/Main.py b/Cython/Compiler/Main.py
index 6b5deaee..fb8d6fcb 100644
--- a/Cython/Compiler/Main.py
+++ b/Cython/Compiler/Main.py
@@ -613,7 +613,7 @@ def run_pipeline(source, options, full_module_name = None):
         if os.path.exists(html_filename):
             line = codecs.open(html_filename, "r", encoding="UTF-8").readline()
             if line.startswith(u'<!-- Generated by Cython'):
-                options.annotate = True            
+                options.annotate = True
 
     # Get pipeline
     if source_ext.lower() == '.py':
diff --git a/Cython/Compiler/ModuleNode.py b/Cython/Compiler/ModuleNode.py
index 7ce1c841..738d1360 100644
--- a/Cython/Compiler/ModuleNode.py
+++ b/Cython/Compiler/ModuleNode.py
@@ -73,7 +73,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
         self.generate_c_code(env, options, result)
         self.generate_h_code(env, options, result)
         self.generate_api_code(env, result)
-    
+
     def has_imported_c_functions(self):
         for module in self.referenced_modules:
             for entry in module.cfunc_entries:
@@ -166,7 +166,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
 
     def api_name(self, env):
         return env.qualified_name.replace(".", "__")
-    
+
     def generate_api_code(self, env, result):
         def api_entries(entries, pxd=0):
             return [entry for entry in entries
@@ -249,7 +249,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
 
     def generate_cclass_header_code(self, type, h_code):
         h_code.putln("%s %s %s;" % (
-            Naming.extern_c_macro, 
+            Naming.extern_c_macro,
             PyrexTypes.public_decl("PyTypeObject", "DL_IMPORT"),
             type.typeobj_cname))
 
@@ -1002,7 +1002,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
                     storage_class = "static "
                     dll_linkage = None
                 type = entry.type
-                
+
                 if not definition and entry.defined_in_pxd:
                     type = CPtrType(type)
                 header = type.declaration_code(entry.cname,
@@ -1775,7 +1775,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
         code.putln("#endif")
         code.putln("{")
         tempdecl_code = code.insertion_point()
-        
+
         code.put_declare_refcount_context()
         code.putln("#if CYTHON_REFNANNY")
         code.putln("__Pyx_RefNanny = __Pyx_RefNannyImportAPI(\"refnanny\");")
diff --git a/Cython/Compiler/Nodes.py b/Cython/Compiler/Nodes.py
index 977447dc..28ec47ef 100644
--- a/Cython/Compiler/Nodes.py
+++ b/Cython/Compiler/Nodes.py
@@ -548,7 +548,7 @@ class CFuncDeclaratorNode(CDeclaratorNode):
                 other_type = type_node.analyse_as_type(env)
                 if other_type is None:
                     error(type_node.pos, "Not a type")
-                elif (type is not PyrexTypes.py_object_type 
+                elif (type is not PyrexTypes.py_object_type
                       and not type.same_as(other_type)):
                     error(self.base.pos, "Signature does not agree with previous declaration")
                     error(type_node.pos, "Previous declaration here")
@@ -1099,7 +1099,7 @@ class CEnumDefNode(StatNode):
     #  api            boolean
     #  in_pxd         boolean
     #  entry          Entry
-    
+
     child_attrs = ["items"]
 
     def analyse_declarations(self, env):
@@ -1146,7 +1146,7 @@ class CEnumDefItemNode(StatNode):
             if not self.value.type.is_int:
                 self.value = self.value.coerce_to(PyrexTypes.c_int_type, env)
                 self.value.analyse_const_expression(env)
-        entry = env.declare_const(self.name, enum_entry.type, 
+        entry = env.declare_const(self.name, enum_entry.type,
             self.value, self.pos, cname = self.cname,
             visibility = enum_entry.visibility, api = enum_entry.api)
         enum_entry.enum_values.append(entry)
@@ -1170,7 +1170,7 @@ class CTypeDefNode(StatNode):
             cname = cname, visibility = self.visibility, api = self.api)
         if self.in_pxd and not env.in_cinclude:
             entry.defined_in_pxd = 1
-    
+
     def analyse_expressions(self, env):
         pass
     def generate_execution_code(self, code):
@@ -1221,7 +1221,7 @@ class FuncDefNode(StatNode, BlockNode):
             other_type = type_node.analyse_as_type(env)
             if other_type is None:
                 error(type_node.pos, "Not a type")
-            elif (type is not PyrexTypes.py_object_type 
+            elif (type is not PyrexTypes.py_object_type
                     and not type.same_as(other_type)):
                 error(arg.base_type.pos, "Signature does not agree with previous declaration")
                 error(type_node.pos, "Previous declaration here")
@@ -1815,7 +1815,7 @@ class CFuncDefNode(FuncDefNode):
             self.modifiers[self.modifiers.index('inline')] = 'cython_inline'
         if self.modifiers:
             modifiers = "%s " % ' '.join(self.modifiers).upper()
-        
+
         header = self.return_type.declaration_code(entity, dll_linkage=dll_linkage)
         #print (storage_class, modifiers, header)
         code.putln("%s%s%s {" % (storage_class, modifiers, header))
@@ -3446,7 +3446,7 @@ class CClassDefNode(ClassDefNode):
             visibility = self.visibility,
             typedef_flag = self.typedef_flag,
             api = self.api,
-            buffer_defaults = buffer_defaults, 
+            buffer_defaults = buffer_defaults,
             shadow = self.shadow)
         if self.shadow:
             home_scope.lookup(self.class_name).as_variable = self.entry
@@ -4172,8 +4172,8 @@ class RaiseStatNode(StatNode):
         if self.exc_type and not self.exc_value and not self.exc_tb:
             exc = self.exc_type
             import ExprNodes
-            if (isinstance(exc, ExprNodes.SimpleCallNode) and 
-                not (exc.args or (exc.arg_tuple is not None and 
+            if (isinstance(exc, ExprNodes.SimpleCallNode) and
+                not (exc.args or (exc.arg_tuple is not None and
                                   exc.arg_tuple.args))):
                 exc = exc.function # extract the exception type
             if exc.is_name and exc.entry.is_builtin:
diff --git a/Cython/Compiler/ParseTreeTransforms.py b/Cython/Compiler/ParseTreeTransforms.py
index 9ee649d1..2ba5aadc 100644
--- a/Cython/Compiler/ParseTreeTransforms.py
+++ b/Cython/Compiler/ParseTreeTransforms.py
@@ -1211,7 +1211,7 @@ if VALUE is not None:
             arg = copy.deepcopy(arg_template)
             arg.declarator.name = entry.name
             init_method.args.append(arg)
-            
+
         # setters/getters
         for entry, attr in zip(var_entries, attributes):
             # TODO: branch on visibility
@@ -1224,7 +1224,7 @@ if VALUE is not None:
                 }, pos = entry.pos).stats[0]
             property.name = entry.name
             wrapper_class.body.stats.append(property)
-            
+
         wrapper_class.analyse_declarations(self.env_stack[-1])
         return self.visit_CClassDefNode(wrapper_class)
 
diff --git a/Cython/Compiler/Parsing.py b/Cython/Compiler/Parsing.py
index 4f844aac..e111bc13 100644
--- a/Cython/Compiler/Parsing.py
+++ b/Cython/Compiler/Parsing.py
@@ -2525,7 +2525,7 @@ def p_c_struct_or_union_definition(s, pos, ctx):
         s.expect_dedent()
     else:
         s.expect_newline("Syntax error in struct or union definition")
-    return Nodes.CStructOrUnionDefNode(pos, 
+    return Nodes.CStructOrUnionDefNode(pos,
         name = name, cname = cname, kind = kind, attributes = attributes,
         typedef_flag = ctx.typedef_flag, visibility = ctx.visibility,
         api = ctx.api, in_pxd = ctx.level == 'module_pxd', packed = packed)
@@ -2613,7 +2613,7 @@ def p_ctypedef_statement(s, ctx):
         s.expect_newline("Syntax error in ctypedef statement")
         return Nodes.CTypeDefNode(
             pos, base_type = base_type,
-            declarator = declarator, 
+            declarator = declarator,
             visibility = visibility, api = api,
             in_pxd = ctx.level == 'module_pxd')
 
diff --git a/Cython/Compiler/PyrexTypes.py b/Cython/Compiler/PyrexTypes.py
index 4dc231d9..2dce098f 100755
--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -17,10 +17,10 @@ class BaseType(object):
 
     def cast_code(self, expr_code):
         return "((%s)%s)" % (self.declaration_code(""), expr_code)
-    
+
     def specialization_name(self):
         return self.declaration_code("").replace(" ", "__")
-    
+
     def base_declaration_code(self, base_code, entity_code):
         if entity_code:
             return "%s %s" % (base_code, entity_code)
@@ -56,7 +56,7 @@ class PyrexType(BaseType):
     #  has_attributes        boolean     Has C dot-selectable attributes
     #  default_value         string      Initial value
     #
-    #  declaration_code(entity_code, 
+    #  declaration_code(entity_code,
     #      for_display = 0, dll_linkage = None, pyrex = 0)
     #    Returns a code fragment for the declaration of an entity
     #    of this type, given a code fragment for the entity.
@@ -80,7 +80,7 @@ class PyrexType(BaseType):
     #    Coerces array type into pointer type for use as
     #    a formal argument type.
     #
-        
+
     is_pyobject = 0
     is_unspecified = 0
     is_extension_type = 0
@@ -108,44 +108,44 @@ class PyrexType(BaseType):
     is_buffer = 0
     has_attributes = 0
     default_value = ""
-    
+
     def resolve(self):
         # If a typedef, returns the base type.
         return self
-    
+
     def specialize(self, values):
         # TODO(danilo): Override wherever it makes sense.
         return self
-    
+
     def literal_code(self, value):
         # Returns a C code fragment representing a literal
         # value of this type.
         return str(value)
-    
+
     def __str__(self):
         return self.declaration_code("", for_display = 1).strip()
-    
+
     def same_as(self, other_type, **kwds):
         return self.same_as_resolved_type(other_type.resolve(), **kwds)
-    
+
     def same_as_resolved_type(self, other_type):
         return self == other_type or other_type is error_type
-    
+
     def subtype_of(self, other_type):
         return self.subtype_of_resolved_type(other_type.resolve())
-    
+
     def subtype_of_resolved_type(self, other_type):
         return self.same_as(other_type)
-    
+
     def assignable_from(self, src_type):
         return self.assignable_from_resolved_type(src_type.resolve())
-    
+
     def assignable_from_resolved_type(self, src_type):
         return self.same_as(src_type)
-    
+
     def as_argument_type(self):
         return self
-    
+
     def is_complete(self):
         # A type is incomplete if it is an unsized array,
         # a struct whose attributes are not defined, etc.
@@ -167,7 +167,7 @@ def public_decl(base_code, dll_linkage):
         return "%s(%s)" % (dll_linkage, base_code)
     else:
         return base_code
-    
+
 def create_typedef_type(name, base_type, cname, is_external=0):
     if base_type.is_complex:
         if is_external:
@@ -189,38 +189,38 @@ class CTypedefType(BaseType):
     #  typedef_cname       string
     #  typedef_base_type   PyrexType
     #  typedef_is_external bool
-    
+
     is_typedef = 1
     typedef_is_external = 0
 
     to_py_utility_code = None
     from_py_utility_code = None
-    
-    
+
+
     def __init__(self, name, base_type, cname, is_external=0):
         assert not base_type.is_complex
         self.typedef_name = name
         self.typedef_cname = cname
         self.typedef_base_type = base_type
         self.typedef_is_external = is_external
-    
+
     def resolve(self):
         return self.typedef_base_type.resolve()
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             base_code = self.typedef_name
         else:
             base_code = public_decl(self.typedef_cname, dll_linkage)
         return self.base_declaration_code(base_code, entity_code)
-    
+
     def as_argument_type(self):
         return self
 
     def cast_code(self, expr_code):
         # If self is really an array (rather than pointer), we can't cast.
-        # For example, the gmp mpz_t. 
+        # For example, the gmp mpz_t.
         if self.typedef_base_type.is_array:
             base_type = self.typedef_base_type.base_type
             return CPtrType(base_type).cast_code(expr_code)
@@ -229,7 +229,7 @@ class CTypedefType(BaseType):
 
     def __repr__(self):
         return "<CTypedefType %s>" % self.typedef_cname
-    
+
     def __str__(self):
         return self.typedef_name
 
@@ -303,7 +303,7 @@ class BufferType(BaseType):
     #  Delegates most attribute
     #  lookups to the base type. ANYTHING NOT DEFINED
     #  HERE IS DELEGATED!
-    
+
     # dtype            PyrexType
     # ndim             int
     # mode             str
@@ -322,7 +322,7 @@ class BufferType(BaseType):
         self.mode = mode
         self.negative_indices = negative_indices
         self.cast = cast
-    
+
     def as_argument_type(self):
         return self
 
@@ -345,10 +345,10 @@ class PyObjectType(PyrexType):
     buffer_defaults = None
     is_extern = False
     is_subclassed = False
-    
+
     def __str__(self):
         return "Python object"
-    
+
     def __repr__(self):
         return "<PyObjectType>"
 
@@ -362,8 +362,8 @@ class PyObjectType(PyrexType):
     def assignable_from(self, src_type):
         # except for pointers, conversion will be attempted
         return not src_type.is_ptr or src_type.is_string
-        
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             base_code = "object"
@@ -398,15 +398,15 @@ class BuiltinObjectType(PyObjectType):
         self.cname = cname
         self.typeptr_cname = "(&%s)" % cname
         self.objstruct_cname = objstruct_cname
-                                 
+
     def set_scope(self, scope):
         self.scope = scope
         if scope:
             scope.parent_type = self
-        
+
     def __str__(self):
         return "%s object" % self.name
-    
+
     def __repr__(self):
         return "<%s>"% self.cname
 
@@ -427,13 +427,13 @@ class BuiltinObjectType(PyObjectType):
                     src_type.name == self.name)
         else:
             return True
-            
+
     def typeobj_is_available(self):
         return True
-        
+
     def attributes_known(self):
         return True
-        
+
     def subtype_of(self, type):
         return type.is_pyobject and self.assignable_from(type)
 
@@ -460,7 +460,7 @@ class BuiltinObjectType(PyObjectType):
         error = '(PyErr_Format(PyExc_TypeError, "Expected %s, got %%.200s", Py_TYPE(%s)->tp_name), 0)' % (self.name, arg)
         return check + '||' + error
 
-    def declaration_code(self, entity_code, 
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             base_code = self.name
@@ -493,12 +493,12 @@ class PyExtensionType(PyObjectType):
     #  vtabstruct_cname string           Name of C method table struct
     #  vtabptr_cname    string           Name of pointer to C method table
     #  vtable_cname     string           Name of C method table definition
-    
+
     is_extension_type = 1
     has_attributes = 1
-    
+
     objtypedef_cname = None
-    
+
     def __init__(self, name, typedef_flag, base_type, is_external=0):
         self.name = name
         self.scope = None
@@ -515,28 +515,28 @@ class PyExtensionType(PyObjectType):
         self.vtabptr_cname = None
         self.vtable_cname = None
         self.is_external = is_external
-    
+
     def set_scope(self, scope):
         self.scope = scope
         if scope:
             scope.parent_type = self
-    
+
     def subtype_of_resolved_type(self, other_type):
         if other_type.is_extension_type:
             return self is other_type or (
                 self.base_type and self.base_type.subtype_of(other_type))
         else:
             return other_type is py_object_type
-    
+
     def typeobj_is_available(self):
         # Do we have a pointer to the type object?
         return self.typeptr_cname
-    
+
     def typeobj_is_imported(self):
         # If we don't know the C name of the type object but we do
         # know which module it's defined in, it will be imported.
         return self.typeobj_cname is None and self.module_name is not None
-    
+
     def assignable_from(self, src_type):
         if self == src_type:
             return True
@@ -545,7 +545,7 @@ class PyExtensionType(PyObjectType):
                 return self.assignable_from(src_type.base_type)
         return False
 
-    def declaration_code(self, entity_code, 
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0, deref = 0):
         if pyrex or for_display:
             base_code = self.name
@@ -573,14 +573,14 @@ class PyExtensionType(PyObjectType):
 
     def attributes_known(self):
         return self.scope is not None
-    
+
     def __str__(self):
         return self.name
-    
+
     def __repr__(self):
         return "<PyExtensionType %s%s>" % (self.scope.class_name,
             ("", " typedef")[self.typedef_flag])
-    
+
 
 class CType(PyrexType):
     #
@@ -589,7 +589,7 @@ class CType(PyrexType):
     #  to_py_function     string     C function for converting to Python object
     #  from_py_function   string     C function for constructing from Python object
     #
-    
+
     to_py_function = None
     from_py_function = None
     exception_value = None
@@ -597,7 +597,7 @@ class CType(PyrexType):
 
     def create_to_py_utility_code(self, env):
         return self.to_py_function is not None
-        
+
     def create_from_py_utility_code(self, env):
         return self.from_py_function is not None
 
@@ -624,18 +624,18 @@ class CVoidType(CType):
     #
 
     is_void = 1
-    
+
     def __repr__(self):
         return "<CVoidType>"
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             base_code = "void"
         else:
             base_code = public_decl("void", dll_linkage)
         return self.base_declaration_code(base_code, entity_code)
-    
+
     def is_complete(self):
         return 0
 
@@ -647,27 +647,27 @@ class CNumericType(CType):
     #   rank      integer     Relative size
     #   signed    integer     0 = unsigned, 1 = unspecified, 2 = explicitly signed
     #
-    
+
     is_numeric = 1
     default_value = "0"
     has_attributes = True
     scope = None
-    
+
     sign_words = ("unsigned ", "", "signed ")
-    
+
     def __init__(self, rank, signed = 1):
         self.rank = rank
         self.signed = signed
-    
+
     def sign_and_name(self):
         s = self.sign_words[self.signed]
         n = rank_to_type_name[self.rank]
         return s + n
-    
+
     def __repr__(self):
         return "<CNumericType %s>" % self.sign_and_name()
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         type_name = self.sign_and_name()
         if pyrex or for_display:
@@ -675,7 +675,7 @@ class CNumericType(CType):
         else:
             base_code = public_decl(type_name, dll_linkage)
         return self.base_declaration_code(base_code, entity_code)
-                    
+
     def attributes_known(self):
         if self.scope is None:
             import Symtab
@@ -846,7 +846,7 @@ static CYTHON_INLINE PyObject *__Pyx_PyInt_to_py_%(TypeName)s(%(type)s val) {
     } else {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&val;
-        return _PyLong_FromByteArray(bytes, sizeof(%(type)s), 
+        return _PyLong_FromByteArray(bytes, sizeof(%(type)s),
                                      little, !is_unsigned);
     }
 }
@@ -1101,22 +1101,22 @@ class CFloatType(CNumericType):
     from_py_function = "__pyx_PyFloat_AsDouble"
 
     exception_value = -1
-    
+
     def __init__(self, rank, math_h_modifier = ''):
         CNumericType.__init__(self, rank, 1)
         self.math_h_modifier = math_h_modifier
-    
+
     def assignable_from_resolved_type(self, src_type):
         return (src_type.is_numeric and not src_type.is_complex) or src_type is error_type
 
 
 class CComplexType(CNumericType):
-    
+
     is_complex = 1
     to_py_function = "__pyx_PyComplex_FromComplex"
     has_attributes = 1
     scope = None
-    
+
     def __init__(self, real_type):
         while real_type.is_typedef and not real_type.typedef_is_external:
             real_type = real_type.typedef_base_type
@@ -1128,7 +1128,7 @@ class CComplexType(CNumericType):
             self.funcsuffix = real_type.math_h_modifier
         else:
             self.funcsuffix = "_%s" % real_type.specialization_name()
-    
+
         self.real_type = real_type
         CNumericType.__init__(self, real_type.rank + 0.5, real_type.signed)
         self.binops = {}
@@ -1140,7 +1140,7 @@ class CComplexType(CNumericType):
             return self.real_type == other.real_type
         else:
             return False
-    
+
     def __ne__(self, other):
         if isinstance(self, CComplexType) and isinstance(other, CComplexType):
             return self.real_type != other.real_type
@@ -1158,7 +1158,7 @@ class CComplexType(CNumericType):
     def __hash__(self):
         return ~hash(self.real_type)
 
-    def declaration_code(self, entity_code, 
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             real_code = self.real_type.declaration_code("", for_display, dll_linkage, pyrex)
@@ -1172,7 +1172,7 @@ class CComplexType(CNumericType):
         real_type_name = real_type_name.replace('long__double','long_double')
         real_type_name = real_type_name.replace('PY_LONG_LONG','long_long')
         return Naming.type_prefix + real_type_name + "_complex"
-    
+
     def assignable_from(self, src_type):
         # Temporary hack/feature disabling, see #441
         if (not src_type.is_complex and src_type.is_numeric and src_type.is_typedef
@@ -1180,12 +1180,12 @@ class CComplexType(CNumericType):
              return False
         else:
             return super(CComplexType, self).assignable_from(src_type)
-        
+
     def assignable_from_resolved_type(self, src_type):
         return (src_type.is_complex and self.real_type.assignable_from_resolved_type(src_type.real_type)
-                    or src_type.is_numeric and self.real_type.assignable_from_resolved_type(src_type) 
+                    or src_type.is_numeric and self.real_type.assignable_from_resolved_type(src_type)
                     or src_type is error_type)
-                    
+
     def attributes_known(self):
         if self.scope is None:
             import Symtab
@@ -1216,7 +1216,7 @@ class CComplexType(CNumericType):
                              complex_arithmetic_utility_code):
             env.use_utility_code(
                 utility_code.specialize(
-                    self, 
+                    self,
                     real_type = self.real_type.declaration_code(''),
                     m = self.funcsuffix,
                     is_float = self.real_type.is_float))
@@ -1234,13 +1234,13 @@ class CComplexType(CNumericType):
                              complex_from_py_utility_code):
             env.use_utility_code(
                 utility_code.specialize(
-                    self, 
+                    self,
                     real_type = self.real_type.declaration_code(''),
                     m = self.funcsuffix,
                     is_float = self.real_type.is_float))
         self.from_py_function = "__Pyx_PyComplex_As_" + self.specialization_name()
         return True
-    
+
     def lookup_op(self, nargs, op):
         try:
             return self.binops[nargs, op]
@@ -1255,10 +1255,10 @@ class CComplexType(CNumericType):
 
     def unary_op(self, op):
         return self.lookup_op(1, op)
-        
+
     def binary_op(self, op):
         return self.lookup_op(2, op)
-        
+
 complex_ops = {
     (1, '-'): 'neg',
     (1, 'zero'): 'is_zero',
@@ -1529,31 +1529,31 @@ impl="""
 class CArrayType(CType):
     #  base_type     CType              Element type
     #  size          integer or None    Number of elements
-    
+
     is_array = 1
-    
+
     def __init__(self, base_type, size):
         self.base_type = base_type
         self.size = size
         if base_type in (c_char_type, c_uchar_type, c_schar_type):
             self.is_string = 1
-    
+
     def __repr__(self):
         return "<CArrayType %s %s>" % (self.size, repr(self.base_type))
-    
+
     def same_as_resolved_type(self, other_type):
         return ((other_type.is_array and
             self.base_type.same_as(other_type.base_type))
                 or other_type is error_type)
-    
+
     def assignable_from_resolved_type(self, src_type):
         # Can't assign to a variable of an array type
         return 0
-    
+
     def element_ptr_type(self):
         return c_ptr_type(self.base_type)
 
-    def declaration_code(self, entity_code, 
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if self.size is not None:
             dimension_code = self.size
@@ -1564,38 +1564,38 @@ class CArrayType(CType):
         return self.base_type.declaration_code(
             "%s[%s]" % (entity_code, dimension_code),
             for_display, dll_linkage, pyrex)
-    
+
     def as_argument_type(self):
         return c_ptr_type(self.base_type)
-    
+
     def is_complete(self):
         return self.size is not None
 
 
 class CPtrType(CType):
     #  base_type     CType    Referenced type
-    
+
     is_ptr = 1
     default_value = "0"
-    
+
     def __init__(self, base_type):
         self.base_type = base_type
-    
+
     def __repr__(self):
         return "<CPtrType %s>" % repr(self.base_type)
-    
+
     def same_as_resolved_type(self, other_type):
         return ((other_type.is_ptr and
             self.base_type.same_as(other_type.base_type))
                 or other_type is error_type)
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         #print "CPtrType.declaration_code: pointer to", self.base_type ###
         return self.base_type.declaration_code(
             "*%s" % entity_code,
             for_display, dll_linkage, pyrex)
-    
+
     def assignable_from_resolved_type(self, other_type):
         if other_type is error_type:
             return 1
@@ -1608,13 +1608,13 @@ class CPtrType(CType):
                 return self.base_type.pointer_assignable_from_resolved_type(other_type)
             else:
                 return 0
-        if (self.base_type.is_cpp_class and other_type.is_ptr 
+        if (self.base_type.is_cpp_class and other_type.is_ptr
                 and other_type.base_type.is_cpp_class and other_type.base_type.is_subclass(self.base_type)):
             return 1
         if other_type.is_array or other_type.is_ptr:
             return self.base_type.is_void or self.base_type.same_as(other_type.base_type)
         return 0
-    
+
     def specialize(self, values):
         base_type = self.base_type.specialize(values)
         if base_type == self.base_type:
@@ -1626,7 +1626,7 @@ class CPtrType(CType):
 class CNullPtrType(CPtrType):
 
     is_null_ptr = 1
-    
+
 
 class CReferenceType(BaseType):
 
@@ -1637,20 +1637,20 @@ class CReferenceType(BaseType):
 
     def __repr__(self):
         return "<CReferenceType %s>" % repr(self.ref_base_type)
-    
+
     def __str__(self):
         return "%s &" % self.ref_base_type
 
     def as_argument_type(self):
         return self
 
-    def declaration_code(self, entity_code, 
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         #print "CReferenceType.declaration_code: pointer to", self.base_type ###
         return self.ref_base_type.declaration_code(
             "&%s" % entity_code,
             for_display, dll_linkage, pyrex)
-    
+
     def specialize(self, values):
         base_type = self.ref_base_type.specialize(values)
         if base_type == self.ref_base_type:
@@ -1672,10 +1672,10 @@ class CFuncType(CType):
     #  nogil            boolean    Can be called without gil
     #  with_gil         boolean    Acquire gil around function body
     #  templates        [string] or None
-    
+
     is_cfunction = 1
     original_sig = None
-    
+
     def __init__(self, return_type, args, has_varargs = 0,
             exception_value = None, exception_check = 0, calling_convention = "",
             nogil = 0, with_gil = 0, is_overridable = 0, optional_arg_count = 0,
@@ -1691,7 +1691,7 @@ class CFuncType(CType):
         self.with_gil = with_gil
         self.is_overridable = is_overridable
         self.templates = templates
-    
+
     def __repr__(self):
         arg_reprs = map(repr, self.args)
         if self.has_varargs:
@@ -1707,14 +1707,14 @@ class CFuncType(CType):
             self.calling_convention_prefix(),
             ",".join(arg_reprs),
             except_clause)
-    
+
     def calling_convention_prefix(self):
         cc = self.calling_convention
         if cc:
             return cc + " "
         else:
             return ""
-    
+
     def same_c_signature_as(self, other_type, as_cmethod = 0):
         return self.same_c_signature_as_resolved_type(
             other_type.resolve(), as_cmethod)
@@ -1750,7 +1750,7 @@ class CFuncType(CType):
 
     def compatible_signature_with(self, other_type, as_cmethod = 0):
         return self.compatible_signature_with_resolved_type(other_type.resolve(), as_cmethod)
-    
+
     def compatible_signature_with_resolved_type(self, other_type, as_cmethod):
         #print "CFuncType.same_c_signature_as_resolved_type:", \
         #    self, other_type, "as_cmethod =", as_cmethod ###
@@ -1784,11 +1784,11 @@ class CFuncType(CType):
         if as_cmethod:
             self.args[0] = other_type.args[0]
         return 1
-        
-        
+
+
     def narrower_c_signature_than(self, other_type, as_cmethod = 0):
         return self.narrower_c_signature_than_resolved_type(other_type.resolve(), as_cmethod)
-        
+
     def narrower_c_signature_than_resolved_type(self, other_type, as_cmethod):
         if other_type is error_type:
             return 1
@@ -1824,7 +1824,7 @@ class CFuncType(CType):
         sc1 = self.calling_convention == '__stdcall'
         sc2 = other.calling_convention == '__stdcall'
         return sc1 == sc2
-    
+
     def same_exception_signature_as(self, other_type):
         return self.same_exception_signature_as_resolved_type(
             other_type.resolve())
@@ -1832,18 +1832,18 @@ class CFuncType(CType):
     def same_exception_signature_as_resolved_type(self, other_type):
         return self.exception_value == other_type.exception_value \
             and self.exception_check == other_type.exception_check
-    
+
     def same_as_resolved_type(self, other_type, as_cmethod = 0):
         return self.same_c_signature_as_resolved_type(other_type, as_cmethod) \
             and self.same_exception_signature_as_resolved_type(other_type) \
             and self.nogil == other_type.nogil
-    
+
     def pointer_assignable_from_resolved_type(self, other_type):
         return self.same_c_signature_as_resolved_type(other_type) \
             and self.same_exception_signature_as_resolved_type(other_type) \
             and not (self.nogil and not other_type.nogil)
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
                          for_display = 0, dll_linkage = None, pyrex = 0,
                          with_calling_convention = 1):
         arg_decl_list = []
@@ -1881,7 +1881,7 @@ class CFuncType(CType):
         return self.return_type.declaration_code(
             "%s%s(%s)%s" % (cc, entity_code, arg_decl_code, trailer),
             for_display, dll_linkage, pyrex)
-    
+
     def function_header_code(self, func_name, arg_code):
         return "%s%s(%s)" % (self.calling_convention_prefix(),
             func_name, arg_code)
@@ -1893,7 +1893,7 @@ class CFuncType(CType):
     def signature_cast_string(self):
         s = self.declaration_code("(*)", with_calling_convention=False)
         return '(%s)' % s
-    
+
     def specialize(self, values):
         if self.templates is None:
             new_templates = None
@@ -1910,7 +1910,7 @@ class CFuncType(CType):
                              is_overridable = self.is_overridable,
                              optional_arg_count = self.optional_arg_count,
                              templates = new_templates)
-    
+
     def opt_arg_cname(self, arg_name):
         return self.op_arg_struct.base_type.scope.lookup(arg_name).cname
 
@@ -1935,13 +1935,13 @@ class CFuncTypeArg(object):
         self.type = type
         self.pos = pos
         self.needs_type_test = False # TODO: should these defaults be set in analyse_types()?
-    
+
     def __repr__(self):
         return "%s:%s" % (self.name, repr(self.type))
-    
+
     def declaration_code(self, for_display = 0):
         return self.type.declaration_code(self.cname, for_display)
-    
+
     def specialize(self, values):
         return CFuncTypeArg(self.name, self.type.specialize(values), self.pos, self.cname)
 
@@ -1955,11 +1955,11 @@ class StructUtilityCode(object):
         return isinstance(other, StructUtilityCode) and self.header == other.header
     def __hash__(self):
         return hash(self.header)
-    
+
     def put_code(self, output):
         code = output['utility_code_def']
         proto = output['utility_code_proto']
-        
+
         code.putln("%s {" % self.header)
         code.putln("PyObject* res;")
         code.putln("PyObject* member;")
@@ -1982,7 +1982,7 @@ class StructUtilityCode(object):
         if self.forward_decl:
             proto.putln(self.type.declaration_code('') + ';')
         proto.putln(self.header + ";")
-        
+
 
 class CStructOrUnionType(CType):
     #  name          string
@@ -1991,12 +1991,12 @@ class CStructOrUnionType(CType):
     #  scope         StructOrUnionScope, or None if incomplete
     #  typedef_flag  boolean
     #  packed        boolean
-    
+
     # entry          Entry
-    
+
     is_struct_or_union = 1
     has_attributes = 1
-    
+
     def __init__(self, name, kind, scope, typedef_flag, cname, packed=False):
         self.name = name
         self.cname = cname
@@ -2009,7 +2009,7 @@ class CStructOrUnionType(CType):
         self.exception_check = True
         self._convert_code = None
         self.packed = packed
-        
+
     def create_to_py_utility_code(self, env):
         if env.outer_scope is None:
             return False
@@ -2024,15 +2024,15 @@ class CStructOrUnionType(CType):
                     return False
             forward_decl = (self.entry.visibility != 'extern')
             self._convert_code = StructUtilityCode(self, forward_decl)
-        
+
         env.use_utility_code(self._convert_code)
         return True
-        
+
     def __repr__(self):
         return "<CStructOrUnionType %s %s%s>" % (self.name, self.cname,
             ("", " typedef")[self.typedef_flag])
 
-    def declaration_code(self, entity_code, 
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             base_code = self.name
@@ -2064,7 +2064,7 @@ class CStructOrUnionType(CType):
 
     def is_complete(self):
         return self.scope is not None
-    
+
     def attributes_known(self):
         return self.is_complete()
 
@@ -2087,12 +2087,12 @@ class CppClassType(CType):
     #  cname         string
     #  scope         CppClassScope
     #  templates     [string] or None
-    
+
     is_cpp_class = 1
     has_attributes = 1
     exception_check = True
     namespace = None
-    
+
     def __init__(self, name, scope, cname, base_classes, templates = None, template_type = None):
         self.name = name
         self.cname = cname
@@ -2108,11 +2108,11 @@ class CppClassType(CType):
             error(pos, "'%s' type is not a template" % self);
             return PyrexTypes.error_type
         if len(self.templates) != len(template_values):
-            error(pos, "%s templated type receives %d arguments, got %d" % 
+            error(pos, "%s templated type receives %d arguments, got %d" %
                   (self.name, len(self.templates), len(template_values)))
             return error_type
         return self.specialize(dict(zip(self.templates, template_values)))
-    
+
     def specialize(self, values):
         if not self.templates and not self.namespace:
             return self
@@ -2159,7 +2159,7 @@ class CppClassType(CType):
             if base_class.is_subclass(other_type):
                 return 1
         return 0
-    
+
     def same_as_resolved_type(self, other_type):
         if other_type.is_cpp_class:
             if self == other_type:
@@ -2178,23 +2178,23 @@ class CppClassType(CType):
         if other_type is error_type:
             return True
         return other_type.is_cpp_class and other_type.is_subclass(self)
-    
+
     def attributes_known(self):
         return self.scope is not None
 
 
 class TemplatePlaceholderType(CType):
-    
+
     def __init__(self, name):
         self.name = name
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if entity_code:
             return self.name + " " + entity_code
         else:
             return self.name
-    
+
     def specialize(self, values):
         if self in values:
             return values[self]
@@ -2206,10 +2206,10 @@ class TemplatePlaceholderType(CType):
             return self.name == other_type.name
         else:
             return 0
-        
+
     def __hash__(self):
         return hash(self.name)
-    
+
     def __cmp__(self, other):
         if isinstance(other, TemplatePlaceholderType):
             return cmp(self.name, other.name)
@@ -2232,15 +2232,15 @@ class CEnumType(CType):
         self.cname = cname
         self.values = []
         self.typedef_flag = typedef_flag
-    
+
     def __str__(self):
         return self.name
-    
+
     def __repr__(self):
         return "<CEnumType %s %s%s>" % (self.name, self.cname,
             ("", " typedef")[self.typedef_flag])
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         if pyrex or for_display:
             base_code = self.name
@@ -2258,7 +2258,7 @@ class CStringType(object):
 
     is_string = 1
     is_unicode = 0
-    
+
     to_py_function = "PyBytes_FromString"
     from_py_function = "PyBytes_AsString"
     exception_value = "NULL"
@@ -2270,32 +2270,32 @@ class CStringType(object):
 
 class CUTF8CharArrayType(CStringType, CArrayType):
     #  C 'char []' type.
-    
+
     is_unicode = 1
-    
+
     to_py_function = "PyUnicode_DecodeUTF8"
     exception_value = "NULL"
-    
+
     def __init__(self, size):
         CArrayType.__init__(self, c_char_type, size)
 
 class CCharArrayType(CStringType, CArrayType):
     #  C 'char []' type.
-    
+
     def __init__(self, size):
         CArrayType.__init__(self, c_char_type, size)
-    
+
 
 class CCharPtrType(CStringType, CPtrType):
     # C 'char *' type.
-    
+
     def __init__(self):
         CPtrType.__init__(self, c_char_type)
 
 
 class CUCharPtrType(CStringType, CPtrType):
     # C 'unsigned char *' type.
-    
+
     to_py_function = "__Pyx_PyBytes_FromUString"
     from_py_function = "__Pyx_PyBytes_AsUString"
 
@@ -2305,39 +2305,39 @@ class CUCharPtrType(CStringType, CPtrType):
 
 class UnspecifiedType(PyrexType):
     # Used as a placeholder until the type can be determined.
-    
+
     is_unspecified = 1
-        
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         return "<unspecified>"
-    
+
     def same_as_resolved_type(self, other_type):
         return False
-        
+
 
 class ErrorType(PyrexType):
     # Used to prevent propagation of error messages.
-    
+
     is_error = 1
     exception_value = "0"
     exception_check    = 0
     to_py_function = "dummy"
     from_py_function = "dummy"
-    
+
     def create_to_py_utility_code(self, env):
         return True
-    
+
     def create_from_py_utility_code(self, env):
         return True
-    
-    def declaration_code(self, entity_code, 
+
+    def declaration_code(self, entity_code,
             for_display = 0, dll_linkage = None, pyrex = 0):
         return "<error>"
-    
+
     def same_as_resolved_type(self, other_type):
         return 1
-        
+
     def error_condition(self, result_code):
         return "dummy"
 
@@ -2467,7 +2467,7 @@ modifiers_and_name_to_type = {
 
 def is_promotion(src_type, dst_type):
     # It's hard to find a hard definition of promotion, but empirical
-    # evidence suggests that the below is all that's allowed. 
+    # evidence suggests that the below is all that's allowed.
     if src_type.is_numeric:
         if dst_type.same_as(c_int_type):
             unsigned = (not src_type.signed)
@@ -2490,7 +2490,7 @@ def best_match(args, functions, pos=None):
     functions based on how much work must be done to convert the
     arguments, with the following priorities:
       * identical types or pointers to identical types
-      * promotions 
+      * promotions
       * non-Python types
     That is, we prefer functions where no arguments need converted,
     and failing that, functions where only promotions are required, and
@@ -2500,7 +2500,7 @@ def best_match(args, functions, pos=None):
     the same weight, we return None (as there is no best match). If pos
     is not None, we also generate an error.
     """
-    # TODO: args should be a list of types, not a list of Nodes. 
+    # TODO: args should be a list of types, not a list of Nodes.
     actual_nargs = len(args)
 
     candidates = []
@@ -2532,7 +2532,7 @@ def best_match(args, functions, pos=None):
             errors.append((func, error_mesg))
             continue
         candidates.append((func, func_type))
-        
+
     # Optimize the most common case of no overloading...
     if len(candidates) == 1:
         return candidates[0][0]
@@ -2543,7 +2543,7 @@ def best_match(args, functions, pos=None):
             else:
                 error(pos, "no suitable method found")
         return None
-        
+
     possibilities = []
     bad_types = []
     for func, func_type in candidates:
@@ -2593,7 +2593,7 @@ def widest_numeric_type(type1, type2):
             return ntype
         widest_type = CComplexType(
             widest_numeric_type(
-                real_type(type1), 
+                real_type(type1),
                 real_type(type2)))
     elif type1.is_enum and type2.is_enum:
         widest_type = c_int_type
@@ -2685,7 +2685,7 @@ def simple_c_type(signed, longness, name):
     # Find type descriptor for simple type given name and modifiers.
     # Returns None if arguments don't make sense.
     return modifiers_and_name_to_type.get((signed, longness, name))
-    
+
 def parse_basic_type(name):
     base = None
     if name.startswith('p_'):
@@ -2719,7 +2719,7 @@ def parse_basic_type(name):
         if name.startswith('u'):
             name = name[1:]
             signed = 0
-        elif (name.startswith('s') and 
+        elif (name.startswith('s') and
               not name.startswith('short')):
             name = name[1:]
             signed = 2
@@ -2763,7 +2763,7 @@ def c_ref_type(base_type):
 
 def same_type(type1, type2):
     return type1.same_as(type2)
-    
+
 def assignable_from(type1, type2):
     return type1.assignable_from(type2)
 
diff --git a/Cython/Compiler/Symtab.py b/Cython/Compiler/Symtab.py
index 00f9fee3..6425a26d 100644
--- a/Cython/Compiler/Symtab.py
+++ b/Cython/Compiler/Symtab.py
@@ -401,13 +401,13 @@ class Scope(object):
         except ValueError, e:
             error(pos, e.args[0])
             type = PyrexTypes.error_type
-        entry = self.declare_type(name, type, pos, cname, 
+        entry = self.declare_type(name, type, pos, cname,
                                   visibility = visibility, api = api)
         type.qualified_name = entry.qualified_name
         return entry
-        
-    def declare_struct_or_union(self, name, kind, scope, 
-                                typedef_flag, pos, cname = None, 
+
+    def declare_struct_or_union(self, name, kind, scope,
+                                typedef_flag, pos, cname = None,
                                 visibility = 'private', api = 0,
                                 packed = False):
         # Add an entry for a struct or union definition.
@@ -488,7 +488,7 @@ class Scope(object):
         if entry.visibility != visibility:
             error(pos, "'%s' previously declared as '%s'" % (
                 entry.name, entry.visibility))
-    
+
     def declare_enum(self, name, pos, cname, typedef_flag,
             visibility = 'private', api = 0):
         if name:
@@ -504,7 +504,7 @@ class Scope(object):
             visibility = visibility, api = api)
         entry.enum_values = []
         self.sue_entries.append(entry)
-        return entry    
+        return entry
 
     def declare_var(self, name, type, pos,
                     cname = None, visibility = 'private', api = 0, is_cdef = 0):
@@ -1059,7 +1059,7 @@ class ModuleScope(Scope):
         buffer_defaults = None, shadow = 0):
         # If this is a non-extern typedef class, expose the typedef, but use
         # the non-typedef struct internally to avoid needing forward
-        # declarations for anonymous structs. 
+        # declarations for anonymous structs.
         if typedef_flag and visibility != 'extern':
             if not (visibility == 'public' or api):
                 warning(pos, "ctypedef only valid for 'extern' , 'public', and 'api'", 2)
@@ -1462,7 +1462,7 @@ class StructOrUnionScope(Scope):
     def declare_cfunction(self, name, type, pos,
                           cname = None, visibility = 'private', defining = 0,
                           api = 0, in_pxd = 0, modifiers = ()): # currently no utility code ...
-        return self.declare_var(name, type, pos, 
+        return self.declare_var(name, type, pos,
                                 cname=cname, visibility=visibility)
 
 class ClassScope(Scope):
@@ -1627,7 +1627,7 @@ class CClassScope(ClassScope):
         if name == "__new__":
             error(pos, "__new__ method of extension type will change semantics "
                 "in a future version of Pyrex and Cython. Use __cinit__ instead.")
-        entry = self.declare_var(name, py_object_type, pos, 
+        entry = self.declare_var(name, py_object_type, pos,
                                  visibility='extern')
         special_sig = get_special_method_signature(name)
         if special_sig:
@@ -1753,7 +1753,7 @@ class CppClassScope(Scope):
         self.inherited_var_entries = []
 
     def declare_var(self, name, type, pos,
-                    cname = None, visibility = 'extern', api = 0, 
+                    cname = None, visibility = 'extern', api = 0,
                     is_cdef = 0, allow_pyobject = 0):
         # Add an entry for an attribute.
         if not cname:
@@ -1795,7 +1795,7 @@ class CppClassScope(Scope):
             error(pos, "no matching function for call to %s::%s()" %
                   (self.default_constructor, self.default_constructor))
 
-    def declare_cfunction(self, name, type, pos, cname = None, 
+    def declare_cfunction(self, name, type, pos, cname = None,
                           visibility = 'extern', api = 0, defining = 0,
                           in_pxd = 0, modifiers = (), utility_code = None):
         if name == self.name.split('::')[-1] and cname is None:
@@ -1803,7 +1803,7 @@ class CppClassScope(Scope):
             name = '<init>'
             type.return_type = self.lookup(self.name).type
         prev_entry = self.lookup_here(name)
-        entry = self.declare_var(name, type, pos, 
+        entry = self.declare_var(name, type, pos,
                                  cname=cname, visibility=visibility)
         if prev_entry:
             entry.overloaded_alternatives = prev_entry.all_alternatives()
-- 
2.26.2