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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Hi all,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I am trying
to call an interface from DLL created in .Net to work with a IronPython script
and am getting the following error when I run the code:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>TypeError:
Cannot create instances of IDSSCatalog<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>The trace is
below:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Traceback
(most recent call last):<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> File
".\Tutorial\ShiftIntervalMaxValue.py", line 82, in RunApp
Process()<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> File
".\Tutorial\ShiftIntervalMaxValue.py", line 97, in Process
dictgages = GetCatalogDictFromDSSRS(db,DSS_RS_FILTER)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> File
".\Tutorial\ShiftIntervalMaxValue.py", line 176, in
GetCatalogDictFromDSS RS ds = CatalogAsDataSet(db)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> File
".\Tutorial\ShiftIntervalMaxValue.py", line 198, in
CatalogAsDataSet dssCatalog = IDSSCatalog(db)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> TypeError:
Cannot create instances of IDSSCatalog<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Below is an
example of the code that created the error:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>import clr<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>def
LoadTSMNet():<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
import string,sys<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
from os import path<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
#from System.Reflection import Assembly #Import
.Net Assembly to import DLL<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
mypath = path.dirname(sys.argv[0])<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
tsmpath = path.join(mypath,"TimeSeriesMgrNet.dll")<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
tsmpath = string.replace(tsmpath,'\\','\\\\')<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
clr.AddReferenceToFileAndPath(tsmpath)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
</span><span style='font-family:"Cambria","serif"'>#Assembly.LoadFile(tsmpath)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>LoadTSMNet()<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>clr.AddReferenceByPartialName("TimeSeriesMgrNet")<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>import TimeSeriesMgrNet<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>from
TimeSeriesMgrNet import IDSSCatalog,</span> <span style='font-family:"Arial","sans-serif"'>DSSDatabase<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>DSS_DATABASE_PATH
= “C:/temp/myfile.dss”<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>db =
DSSDatabase()<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>db.Name =
DSS_DATABASE_PATH<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>db.Connect(False)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>dssCatalog =
IDSSCatalog(db)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>dssCatalog.MakeNewCatalog('')<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>ds =
dssCatalog.AsDataSet(True,'')<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>db.Disconnect()<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>IDSSCatalog
is the interface and DSSDatabase implements the interface. Any ideas on why I
am getting this error?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Max<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
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