id,summary,reporter,owner,description,type,status,priority,component,severity,resolution,keywords,cc
149,Throws wrong ValueError exception on bad time stamps,f_d_c_-alquiler@…,xi,"If a timestamp is badly formatted construct_yaml_timestamp() throws an uncaught ValueError instead of yaml.YAMLError:

{{{
>>> yaml.safe_load(""2009-13-11"")
Traceback (most recent call last):
  File ""<pyshell#4>"", line 2, in <module>
    yaml.safe_load(""2009-13-11"")
  File ""C:\Python26\lib\site-packages\yaml\__init__.py"", line 75, in safe_load
    return load(stream, SafeLoader)
  File ""C:\Python26\lib\site-packages\yaml\__init__.py"", line 58, in load
    return loader.get_single_data()
  File ""C:\Python26\lib\site-packages\yaml\constructor.py"", line 44, in get_single_data
    return self.construct_document(node)
  File ""C:\Python26\lib\site-packages\yaml\constructor.py"", line 48, in construct_document
    data = self.construct_object(node)
  File ""C:\Python26\lib\site-packages\yaml\constructor.py"", line 93, in construct_object
    data = constructor(self, node)
  File ""C:\Python26\lib\site-packages\yaml\constructor.py"", line 318, in construct_yaml_timestamp
    return datetime.date(year, month, day)
ValueError: month must be in 1..12
}}}

Environment:

    * Python 2.6.4 on Windows XP
    * PyYAML-3.09-py2.5.exe 


I think the function should include something like this:

{{{
try:
    return datetime.date(year, month, day)
except ValueError:
    raise ConstructorError(None,None,""inappropriate date value"",node.start_mark)
}}}

Thank you.",defect,new,normal,pyyaml,normal,,"ValueError, YAMLError",