Throws wrong ValueError exception on bad time stamps

[f_d_c_-alquiler@…]

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.