Custom Query (121 matches)

Reported by sproaticus, 6 years ago.

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

Reported by sproaticus, 6 years ago.

A scalar value cannot start with a % (percent sign) character, though the YAML specification only reserves that character at the beginning of a non-indented line for directives and tags (see  http://yaml.org/spec/current.html#id2523453 and  http://yaml.org/spec/current.html#id2524297 ). This character should be legal as the first character of a scalar value, e.g. for Python %s-style string substitution and templates.

>>> 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/composer.py", line 27, in get_node
  File "build/bdist.linux-i686/egg/yaml/composer.py", line 34, in compose_document
  File "build/bdist.linux-i686/egg/yaml/composer.py", line 63, in compose_node
  File "build/bdist.linux-i686/egg/yaml/composer.py", line 112, in compose_mapping_node
  File "build/bdist.linux-i686/egg/yaml/composer.py", line 43, in compose_node
  File "build/bdist.linux-i686/egg/yaml/parser.py", line 95, in check_event
  File "build/bdist.linux-i686/egg/yaml/parser.py", line 446, in parse_block_mapping_value
  File "build/bdist.linux-i686/egg/yaml/scanner.py", line 116, in check_token
  File "build/bdist.linux-i686/egg/yaml/scanner.py", line 257, in fetch_more_tokens
yaml.scanner.ScannerError: while scanning for the next token
found character '%' that cannot start any token
  in "<string>", line 1, column 7:
    yaml: %
          ^

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

Reported by lal.george@…, 6 years ago.

In python, when I have :

y = {'x' : 3, z : [{'val' : 3}, {'val' : 4}]} yaml.dump(y, default_flow_style=False)

The result is: 'x: 3\nz:\n- val: 3\n- val: 4\n'

I believe there should be a space before each hypen.

Best,

Lal