id,summary,reporter,owner,description,type,status,priority,component,severity,resolution,keywords,cc 50,ScannerError TypeError,edemaine@…,xi,"I encountered a small bug in error reporting with the libyaml interface: {{{ ## A ""real-world"" example: mistaken input HTML instead of YAML. >>> x='\n \n \n \n' >>> yaml.load(x) Traceback (most recent call last): File """", line 1, in File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/__init__.py"", line 66, in load return loader.get_data() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/constructor.py"", line 38, in get_data return self.construct_document(self.get_node()) File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/composer.py"", line 27, in get_node return self.compose_document() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/composer.py"", line 37, in compose_document self.get_event() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/parser.py"", line 115, in get_event self.current_event = self.state() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/parser.py"", line 186, in parse_document_end token = self.peek_token() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/scanner.py"", line 128, in peek_token self.fetch_more_tokens() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/scanner.py"", line 220, in fetch_more_tokens return self.fetch_value() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/scanner.py"", line 579, in fetch_value self.get_mark()) yaml.scanner.ScannerError: mapping values are not allowed here in """", line 4, column 30: TABLE { border-collapse: collapse; } ^ ## great error reporting >>> yaml.load(x,yaml.CLoader) Traceback (most recent call last): File """", line 1, in File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/__init__.py"", line 66, in load return loader.get_data() File ""/toc/home/edemaine/Packages/lib/python2.6/site-packages/yaml/constructor.py"", line 38, in get_data return self.construct_document(self.get_node()) File ""_yaml.pyx"", line 664, in _yaml.CParser.get_node File ""_yaml.pyx"", line 669, in _yaml.CParser._compose_document File ""_yaml.pyx"", line 848, in _yaml.CParser._parse_next_event TypeError: exceptions must be strings, classes, or instances, not ScannerError ## not so useful--seems to be a bug }}} I didn't investigate why {{{ScannerError}}} is considered to be a class in the first case but not the second; perhaps _yaml defines its own ScannerError type? Should probably just use {{{yaml.scanner.ScannerError}}} instead.",defect,closed,normal,pyyaml,normal,fixed,,