Re: [HTCondor-users] condor chirp attribute update with non-string data structures

[Thomas Hartmann <thomas.hartmann@xxxxxxx>]

Hi Todd,

many thanks - that looks much more nifty than my impromptu serialization 
with a lambda for ensuring strings ;)

Cheers,
  Thomas

On 14/09/2022 19.46, Todd L Miller via HTCondor-users wrote:
> > afais a classad object can not be easily flatten/serialized into a 
> > htchirp compatible string. For python dicts 
> > flatten()/printJson/printOld/... return strings in different 
> > formattings or fail.
>
>  ÂÂÂÂI would only expect the str() method to work, but it doesn't 
> because we included newlines in the output. Thus:
>
> #!/usr/bin/python3
>
> import classad
> import htcondor.htchirp
>
> ad = classad.ClassAd({"key1": "value1", 'key2':'value2'})
> with htcondor.htchirp.HTChirp() as chirp:
>  ÂÂÂ chirp.connect()
>  ÂÂÂ chirp_str = str(ad).replace('\n', '')
>  ÂÂÂ chirp.set_job_attr("TestAttr", chirp_str)
>  ÂÂÂ chirp.disconnect()
>
> > btw: can python list be cast into classads? I tried something like [2] 
> > but failed. Max suggested to use enumerate for Lua-like lists with 
> > keys as consecutive numbers, but one would need to explicitly cast the 
> > int indices into strings in a second step.
>
>  ÂÂÂÂThe following is awful but does seem to work:
>
> pylist = ["foo", "bar", "baz"]
> listdic = {"entry": pylist}
> listad = classad.ClassAd(listdic)
> classadlist = listad["entry"]
>
> I suspect there isn't a good reason why
>
> clasadlist = classad.ClassAd(pylist)
>
> and
>
> classadlist = classad.Literal(pylist)
>
> don't work.
>
> -- ToddM
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