id,summary,reporter,owner,description,type,status,priority,component,severity,resolution,keywords,cc
62,"value token of single period ('.') is parsed incorrectly, throws wrong exception",sproaticus,xi,"A scalar value token consisting of just a period ('.') is interpreted as a float value.  When construct_yaml_float() creates a float using this value, it throws an uncaught !ValueError instead of yaml.YAMLError

(Also, what's PIL doing in the stack?  I didn't import it.)

{{{
>>> yaml.load('yaml: .')
Traceback (most recent call last):
  File ""<stdin>"", line 1, in <module>
  File ""/usr/lib/python2.5/site-packages/PIL/__init__.py"", line 66, in load
    
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 38, in get_data
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 46, in construct_document
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 394, in construct_yaml_map
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 207, in construct_mapping
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 132, in construct_mapping
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 87, in construct_object
  File ""build/bdist.linux-i686/egg/yaml/constructor.py"", line 281, in construct_yaml_float
ValueError: invalid literal for float(): .
}}}

Environment:
 * Python 2.5.1 (r251:54863, May  2 2007, 16:56:35) [GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
 * PyYAML-3.05-py2.5.egg",defect,closed,normal,pyyaml,normal,fixed,"ValueError, YAMLError",