On 08.10.2010 08:21, Sebastian Hoffmann wrote:
> Hi.
>
> As mentioned earlier on IRC, parameter blocks don't seem to behave as
> they should. I wrote a little test case:
>
> def pccommandinput_testmsg1(self,celEntity,args):
> params = parblock({"string": "foo", "int": 23, "vector":
> csVector3(1,2,3)})
> print("parameter object : ", params)
> print("parameterCount : ", params.GetParameterCount())
> print("parameter ID index 0 : ",
> params.GetParameterIDByIndex(0))
> print("parameter value index 0 val 0: ", params.GetParameterValue(0))
> print("parameter.keys() : ", params.keys())
> print("params[\"string\"] : ", params["string"])
Note for readers: accessing params by string (params["foo"]) is made
possible by the hack I attached. However, I don't really know if that
'hack' is correct either ;p
> Its output is this:
>
> ('parameter object : ', <blcelc.celGenericParameterBlock;
> proxy of <Swig Object of type 'celGenericParameterBlock *' at
> 0x7f1d258b8f88> >)
> ('parameterCount : ', 3)
> ('parameter ID index 0 : ', 232L)
> ('parameter value index 0 val 0: ', None)
> ('parameter.keys() : ', [232L, 233L, 234L])
> ('params["string"] : ', None)
>
> What I'd expect would be something like:
>
> ('parameter ID index 0 : ', "string")
> ('parameter value index 0 val 0: ', "foo")
> ('parameter.keys() : ', ["string", "int", "vector")
> ('params["string"] : ', "foo")
>
> Anything else I can help to shed some light on this?
That you see numbers instead of strings for IDs and such is expected -
after all string IDs _are_ just numbers.
Values turning up as 'None' is, of course, wrong.
-f.r.
Index: include/bindings/python/parblock.i =================================================================== --- include/bindings/python/parblock.i (revision 4131) +++ include/bindings/python/parblock.i (working copy) @@ -43,8 +43,13 @@ return self.value_iterator() def iterkeys(self): return self.key_iterator() - def __getitem__(self,i): - return self.GetParameter(i) + def __getitem__(self, key): + # Convenience: allow a string key, fetch string ID for it + if isinstance (key, str): + keyid = StringSet.Request (key) + else: + keyid = key + return self.GetParameter (keyid) def keys(self): keys = [] for idx in xrange(len(self)): @@ -52,6 +57,15 @@ return keys def has_key(self,id): return self.__contains__(id) + # Override __contains__ from C++ with a version that accepts strings + _old__contains__ = __contains__ + def _new__contains__(self, key): + if isinstance (key, str): + keyid = StringSet.Request (key) + else: + keyid = key + return self._old__contains__(keyid) + __contains__ = _new__contains__ %} CEL_PAR_SET(bool,bool); CEL_PAR_SET(int8,int8);
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