Code cleanup.

3 files changed, 9 insertions, 6 deletions

diff --git a/sqlparse/engine/filter.py b/sqlparse/engine/filter.py
index 89d9b15..421b3f3 100644
--- a/sqlparse/engine/filter.py
+++ b/sqlparse/engine/filter.py
@@ -61,14 +61,15 @@ class StatementFilter(TokenFilter):
         if unified == 'END':
             # Should this respect a preceeding BEGIN?
             # In CASE ... WHEN ... END this results in a split level -1.
-            self._begin_depth = max(0, self._begin_depth-1)
+            self._begin_depth = max(0, self._begin_depth - 1)
             return -1
 
         if ttype is T.Keyword.DDL and unified.startswith('CREATE'):
             self._is_create = True
             return 0
 
-        if unified in ('IF', 'FOR') and self._is_create and self._begin_depth > 0:
+        if (unified in ('IF', 'FOR')
+            and self._is_create and self._begin_depth > 0):
             return 1
 
         # Default
diff --git a/sqlparse/engine/grouping.py b/sqlparse/engine/grouping.py
index 9bc9612..72f919b 100644
--- a/sqlparse/engine/grouping.py
+++ b/sqlparse/engine/grouping.py
@@ -267,13 +267,15 @@ def group_aliased(tlist):
     token = tlist.token_next_by_instance(idx, (sql.Identifier, sql.Function))
     while token:
         next_ = tlist.token_next(tlist.token_index(token))
-        if next_ is not None and isinstance(next_, (sql.Identifier, sql.Function)):
+        if next_ is not None and isinstance(next_,
+                                            (sql.Identifier, sql.Function)):
             grp = tlist.tokens_between(token, next_)[1:]
             token.tokens.extend(grp)
             for t in grp:
                 tlist.tokens.remove(t)
         idx = tlist.token_index(token) + 1
-        token = tlist.token_next_by_instance(idx, (sql.Identifier, sql.Function))
+        token = tlist.token_next_by_instance(idx,
+                                             (sql.Identifier, sql.Function))
 
 
 def group_typecasts(tlist):
diff --git a/sqlparse/sql.py b/sqlparse/sql.py
index 5b8f067..4d56bf3 100644
--- a/sqlparse/sql.py
+++ b/sqlparse/sql.py
@@ -146,7 +146,7 @@ class TokenList(Token):
 
     def _pprint_tree(self, max_depth=None, depth=0):
         """Pretty-print the object tree."""
-        indent = ' '*(depth*2)
+        indent = ' ' * (depth * 2)
         for idx, token in enumerate(self.tokens):
             if token.is_group():
                 pre = ' +-'
@@ -156,7 +156,7 @@ class TokenList(Token):
                                         token._get_repr_name(),
                                         token._get_repr_value())
             if (token.is_group() and (max_depth is None or depth < max_depth)):
-                token._pprint_tree(max_depth, depth+1)
+                token._pprint_tree(max_depth, depth + 1)
 
     def flatten(self):
         """Generator yielding ungrouped tokens.