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how to create a TPythonEngine object?
Joined: 21 May 2005
Posts: 13
how to create a TPythonEngine object?
When I drag a TPythonEngine onto a form at design time, everything is
OK. But when I tried to create a TPythonEngine through its constructor
explicitly, I got a runtime error which said "Python is not properly
initialized". My code is like the following:
var
pe:TPythonEngine;
begin
pe:=TPythonEngine.Create(nil);
try
pe.ExecString(`a=1+1`);
finally
pe.Free;
end;
end;
How can I make the code work? Is there anything I should take care of?
Thank you!
Joined: 23 Oct 2006
Posts: 5
how to create a TPythonEngine object?
i think you should be inspirate by demo9 :
procedure initdemodll;
begin
try
gEngine := TPythonEngine.Create(nil);
gEngine.AutoFinalize := False;
//--------------------
gEngine.LoadDll; <-- !!!!!!!!!!!
//--------------------
gModule := TPythonModule.Create(nil);
gModule.Engine := gEngine;
gModule.ModuleName := `demodll`;
gModule.AddMethod( `add`, @Add, `add(a,b) -> a+b` );
gModule.Initialize;
except
end;
end;
Good Dev with P4D.
--- In pythonfordelphi@yahoogroups.com, "daydaysy" <ildg@...> wrote:
>
> When I drag a TPythonEngine onto a form at design time, everything is
> OK. But when I tried to create a TPythonEngine through its constructor
> explicitly, I got a runtime error which said "Python is not properly
> initialized". My code is like the following:
>
> var
> pe:TPythonEngine;
> begin
> pe:=TPythonEngine.Create(nil);
//*******************add this
pe.LoadDll;
//*********************************************
> try
> pe.ExecString(`a=1+1`);
> finally
> pe.Free;
> end;
>
> end;
>
> How can I make the code work? Is there anything I should take care of?
> Thank you!
>
Joined: 29 Apr 2005
Posts: 103
how to create a TPythonEngine object?
Note that "gEngine.AutoFinalize := False;" is only required for dll
pluging (demo9) but not if you want to create the engine in your main
application.
--- In pythonfordelphi@yahoogroups.com, "jobbyworld2" <jobbyworld@...>
wrote:
>
> i think you should be inspirate by demo9 :
>
> procedure initdemodll;
> begin
> try
> gEngine := TPythonEngine.Create(nil);
> gEngine.AutoFinalize := False;
> //--------------------
> gEngine.LoadDll; <-- !!!!!!!!!!!
> //--------------------
> gModule := TPythonModule.Create(nil);
> gModule.Engine := gEngine;
> gModule.ModuleName := `demodll`;
> gModule.AddMethod( `add`, @Add, `add(a,b) -> a+b` );
> gModule.Initialize;
> except
> end;
> end;
>
> Good Dev with P4D.
>
>
>
> --- In pythonfordelphi@yahoogroups.com, "daydaysy" <ildg@> wrote:
> >
> > When I drag a TPythonEngine onto a form at design time, everything is
> > OK. But when I tried to create a TPythonEngine through its constructor
> > explicitly, I got a runtime error which said "Python is not properly
> > initialized". My code is like the following:
> >
> > var
> > pe:TPythonEngine;
> > begin
> > pe:=TPythonEngine.Create(nil);
>
>
> //*******************add this
> pe.LoadDll;
> //*********************************************
> > try
> > pe.ExecString(`a=1+1`);
> > finally
> > pe.Free;
> > end;
> >
> > end;
> >
> > How can I make the code work? Is there anything I should take care of?
> > Thank you!
> >
>
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