Custom Query (121 matches)

Reported by clay@…, 5 years ago.

The YAML specification suggests that a mapping can have a key made of more than one item, as in

? - Detroit Tigers
  - Chicago cubs
:
  - 2001-07-23

However, when that data is imported via yaml.load(), PyYAML exits with a yaml.constructor.ConstructorError?, saying "found unacceptable key (list objects are unhashable)"

Is there a way to force multi-value keys to be processed as tuples instead of lists?

Reported by anonymous, 5 years ago.

quote from the documentation:

>>> class Monster(yaml.YAMLObject):
...     yaml_tag = u'!Monster'
...     def __init__(self, name, hp, ac, attacks):
...         self.name = name
...         self.hp = hp
...         self.ac = ac
...         self.attacks = attacks
...     def __repr__(self):
...         return "%s(name=%r, hp=%r, ac=%r, attacks=%r)" % (
...             self.__class__.__name__, self.name, self.hp, self.ac, self.attacks)

>>> yaml.load("""
... --- !Monster
... name: Cave spider
... hp: [2,6]    # 2d6
... ac: 16
... attacks: [BITE, HURT]
... """)

the thing is, yaml.load ignores the __init__ method of the Monster class. it doesn't even matter if it's there at all. in yaml.load you can specify aditional variables and they get added to the object. intended behaviour?

Reported by anonymous, 5 years ago.

syck.dump fails on even simple mappings:

>>> import syck
>>> doc = '''
... a: 1
... b: 2
... c: 3
... '''
>>> syck.load(doc)
{'a': 1, 'c': 3, 'b': 2}
>>> syck.dump(syck.load(doc))
'--- {}\n\n'
>>>

This is PySyck 0.61.2.

$ python --version
Python 2.5.2
$ uname -a
Linux brainsplit 2.6.24 #2 SMP Thu May 1 13:57:17 UTC 2008 x86_64 GNU/Linux
$ 

Cheers.