this is "normal": the json serializer by default doesn't handle datetime
objects serialization.
Python 2.7.3 (default, Apr 10 2012, 23:31:26)
Type "help", "copyright", "credits" or "license" for more information.
>>> import json
>>> import datetime
>>> json.dumps(datetime.datetime.now())
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "F:\Programmi\Portable_Python_2.7.3.1\App\lib\json\__init__.py",
line 231, in dumps
return _default_encoder.encode(obj)
File "F:\Programmi\Portable_Python_2.7.3.1\App\lib\json\encoder.py", line
201, in encode
chunks = self.iterencode(o, _one_shot=True)
File "F:\Programmi\Portable_Python_2.7.3.1\App\lib\json\encoder.py", line
264, in iterencode
return _iterencode(o, 0)
File "F:\Programmi\Portable_Python_2.7.3.1\App\lib\json\encoder.py", line
178, in default
raise TypeError(repr(o) + " is not JSON serializable")
TypeError: datetime.datetime(2012, 12, 10, 16, 4, 46, 573000) is not JSON
serializable
>>>
We could use the web2py "standard" (standard as in web2py and a few other
frameworks "world") object serialization, that takes care of it using
mydate.isoformat()[:19].replace('T', ' ')
but I'm more lenient to have the results strictly as json "standards" (as
in worldwide spec) allowed types.
Suggestions/votes welcome.
On Monday, December 10, 2012 4:01:42 PM UTC+1, Rene Dohmen wrote:
>
> Hi,
>
> I like the new scheduler concept a lot. It looks promising.
>
> Something goes wrong when I try to return a datetime in the method I
> wanted to schedule...
> A Simple JSON parsing error
> --
> raise TypeError(repr(o) + " is not JSON serializable") TypeError:
> datetime.datetime(2012, 12, 10, 15, 57, 59, 300169) is not JSON serializable
> --
>
> Example test code:
> --
> def dateTask():
> return dict(taskDate=datetime.now())
>
> from gluon.scheduler import Scheduler
> Scheduler(db,dict(dateTask=dateTask))
> --
> Scheduler started from web2py trunk with:
> python web2py.py --nogui -K APPNAME -D0
>
> Rene
>
--
