Pep8

mongoengine/fields.py

@@ -108,8 +108,8 @@ class URLField(StringField):
 
     _URL_REGEX = re.compile(
         r'^(?:http|ftp)s?://'  # http:// or https://
-        r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|' #domain...
-        r'localhost|' #localhost...
+        r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|'  # domain...
+        r'localhost|'  # localhost...
         r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})'  # ...or ip
         r'(?::\d+)?'  # optional port
         r'(?:/?|[/?]\S+)$', re.IGNORECASE)
@@ -128,8 +128,7 @@ class URLField(StringField):
             warnings.warn(
                 "The URLField verify_exists argument has intractable security "
                 "and performance issues. Accordingly, it has been deprecated.",
-            DeprecationWarning
-            )
+                DeprecationWarning)
             try:
                 request = urllib2.Request(value)
                 urllib2.urlopen(request)
@@ -469,7 +468,7 @@ class ComplexDateTimeField(StringField):
 
     def __get__(self, instance, owner):
         data = super(ComplexDateTimeField, self).__get__(instance, owner)
-        if data == None:
+        if data is None:
             return datetime.datetime.now()
         if isinstance(data, datetime.datetime):
             return data
@@ -1235,8 +1234,6 @@ class ImageGridFsProxy(GridFSProxy):
         Insert a image in database
         applying field properties (size, thumbnail_size)
         """
-        if not self.instance:
-            import ipdb; ipdb.set_trace();
         field = self.instance._fields[self.key]
 
         try:
@@ -1308,6 +1305,7 @@ class ImageGridFsProxy(GridFSProxy):
                            height=h,
                            format=format,
                            **kwargs)
+
     @property
     def size(self):
         """