          `files` will always be `None`.
          """
          try:
              return yaml.safe_load(stream)
          except (ValueError, yaml.parser.ParserError), exc:
              raise ParseError('YAML parse error - %s' % unicode(exc))
  
  
  class FormParser(BaseParser):
      """
 
</s> remove         except ValueError, exc:
 </s> add         except ValueError as exc: </s> remove         except MultiPartParserError, exc:
 </s> add         except MultiPartParserError as exc: </s> remove         except (ExpatError, ETParseError, ValueError), exc:
 </s> add         except (ExpatError, ETParseError, ValueError) as exc: </s> remove             msg = "Invalid pk '%s' - object does not exist." % smart_unicode(data)
 </s> add             msg = "Invalid pk '%s' - object does not exist." % smart_text(data) </s> remove             msg = "Invalid pk '%s' - object does not exist." % smart_unicode(data)
 </s> add             msg = "Invalid pk '%s' - object does not exist." % smart_text(data)
        except (ValueError, yaml.parser.ParserError) as exc:
          `files` will always be `None`.
          """
          try:
              return yaml.safe_load(stream)
        except (ValueError, yaml.parser.ParserError) as exc:
              raise ParseError('YAML parse error - %s' % unicode(exc))
  
  
  class FormParser(BaseParser):
      """
keep keep keep keep replace keep keep keep keep keep
 First passing test under p3k \o/ 
rest_framework/parsers.py