Fix some coding style problems

hy/macros.py

@@ -21,18 +21,10 @@
 from hy.models import replace_hy_obj, wrap_value
 from hy.models.expression import HyExpression
 from hy.models.string import HyString
-from hy.models.symbol import HySymbol
-from hy.models.list import HyList
-from hy.models.integer import HyInteger
-from hy.models.float import HyFloat
-from hy.models.complex import HyComplex
-from hy.models.dict import HyDict
-from hy._compat import str_type, long_type
 
 from hy.errors import HyTypeError, HyMacroExpansionError
 
 from collections import defaultdict
-import sys
 
 CORE_MACROS = [
     "hy.core.bootstrap",

hy/models/__init__.py

@@ -38,6 +38,7 @@ class HyObject(object):
 
 _wrappers = {}
 
+
 def wrap_value(x):
     """Wrap `x` into the corresponding Hy type.
 
@@ -64,6 +65,5 @@ def replace_hy_obj(obj, other):
     if isinstance(wrapped_obj, HyObject):
         return wrapped_obj.replace(other)
     else:
-        raise TypeError("Can't replace a Hy object with a non wrappable non Hy object")
-        
-
+        raise TypeError("Can't replace a Hy object "
+                        "with a non wrappable non Hy object")

hy/models/integer.py

@@ -23,6 +23,7 @@ from hy._compat import long_type
 
 import sys
 
+
 class HyInteger(HyObject, long_type):
     """
     Internal representation of a Hy Integer. May raise a ValueError as if

tests/models/test_replace_hy_obj.py

@@ -11,6 +11,7 @@ def test_replace_long_type():
     replaced = replace_hy_obj(long_type(0), HyInteger(13))
     assert replaced == HyInteger(0)
 
+
 def test_replace_string_type():
     """Test replacing python string"""
     replaced = replace_hy_obj(str_type("foo"), HyString("bar"))
@@ -23,4 +24,3 @@ def test_replace_tuple():
     assert type(replaced) == HyList
     assert type(replaced[0]) == HyInteger
     assert replaced == HyList([HyInteger(0)])
-