pep8 clean up

Author: jchanvfx

NodeGraphQt/widgets/node_widgets.py

@@ -124,7 +124,7 @@ def node(self):
         Returns:
             NodeItem: parent node.
         """
-        self.parentItem()
+        return self.parentItem()
 
     @property
     def name(self):
@@ -138,7 +138,7 @@ def name(self):
 
     def get_icon(self, name):
         """
-        Returns the qt default icon.
+        Returns the Qt default icon.
 
         Returns:
             str: icon name.

NodeGraphQt/widgets/properties.py

@@ -407,7 +407,7 @@ def __init__(self, parent=None):
         super(_ValueEdit, self).__init__(parent)
         self.mid_state = False
         self._data_type = float
-        self.setText("0")
+        self.setText('0')
 
         self.pre_x = None
         self.pre_val = None
@@ -480,8 +480,8 @@ def _convert_text(self, text):
         return value
 
     def value(self):
-        if self.text().startswith("."):
-            text = "0" + self.text()
+        if self.text().startswith('.'):
+            text = '0' + self.text()
             self.setText(text)
         return self._convert_text(self.text())