def get_declared_fields(bases, attrs, with_base_fields=True):
 fields = [(field_name, attrs.pop(field_name)) for (field_name, obj) in list(six.iteritems(attrs)) if isinstance(obj, Field)]
 fields.sort(key=(lambda x: x[1].creation_counter))
 if with_base_fields:
  for base in bases[::(-1)]:
   if hasattr(base, u'base_fields'):
    fields = (list(six.iteritems(base.base_fields)) + fields)
 else:
  for base in bases[::(-1)]:
   if hasattr(base, u'declared_fields'):
    fields = (list(six.iteritems(base.declared_fields)) + fields)
 return SortedDict(fields)

def get_declared_fields ( bases , attrs , with_base_fields = True ) : fields = [ ( field_name , attrs . pop ( field_name ) ) for ( field_name , obj ) in list ( six . iteritems ( attrs ) ) if isinstance ( obj , Field ) ] fields . sort ( key = ( lambda x : x [ 1 ] . creation_counter ) ) if with_base_fields : for base in bases [ : : ( - 1 ) ] : if hasattr ( base , u'base_fields' ) : fields = ( list ( six . iteritems ( base . base_fields ) ) + fields ) else : for base in bases [ : : ( - 1 ) ] : if hasattr ( base , u'declared_fields' ) : fields = ( list ( six . iteritems ( base . declared_fields ) ) + fields ) return SortedDict ( fields )
create a list of form field instances from the passed in attrs .