Ticket #68 (closed defect: wontfix)

Opened 7 years ago

Last modified 3 months ago

PyYAML don't load datetime objects dumped with PySyck

Reported by: miki@… Owned by: xi
Priority: normal Component: pyyaml-legacy
Severity: normal Keywords:
Cc:

Description

>>> from datetime import datetime
>>> now = datetime.now()
>>> import syck
>>> a = {"t": now}
>>> yaml.load(syck.dump(a))

Traceback (most recent call last):
  File "<pyshell#9>", line 1, in <module>
    lib.yaml.load(syck.dump(a))
  File "yaml/__init__.py", line 66, in load
  File "yaml/constructor.py", line 38, in get_data
  File "yaml/constructor.py", line 46, in construct_document
  File "yaml/constructor.py", line 394, in construct_yaml_map
  File "yaml/constructor.py", line 207, in construct_mapping
  File "yaml/constructor.py", line 132, in construct_mapping
  File "yaml/constructor.py", line 87, in construct_object
  File "yaml/constructor.py", line 410, in construct_undefined
ConstructorError: could not determine a constructor for the tag '!timestamp'
  in "<string>", line 2, column 4:
    t: !timestamp 2007-10-19T14:08:44.5 ... 
       ^

Change History

comment:1 Changed 7 years ago by xi

  • Status changed from new to closed
  • Resolution set to wontfix

It's correct: !timestamp is YAML 1.0 syntax while PyYAML supports YAML 1.1 only. In YAML 1.1, it should become !!timestamp.

It would be great if PyYAML supports YAML 1.0, but that's another story...

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