no success in loading MiniConda with recommended setup

[Talal Bader 0]

Hello,

thank you for the great work of P4D first, I have a scientific package that needs to be installed in Conda environment, I follow the steps to run Miniconda as standalone python and using environment I need, 

the problem I am facing is that the job is run, the log says success with few millisecond but nothing showing up 

 

if someone can list for me the steps to get it done will be great.

 

also it was recommended to :

"add Format('%s;%0:s\Library\bin;', [Version.InstallPath] to your Windows path"   for Conda to work,   I am not sure what it means, do i have to copy this text and add it to my windows environment variables path? 

or this is something to be set inside my delphi project.

 

thank you for PSD first and thank you for the help in advance

 

 

[David Heffernan 2454]

I can't believe that modifying Windows path could be a wise thing to do in this scenario. Who advises that? 

[Talal Bader 0]

this is a snapshot of my settings for reference. 

my MiniConda installed under c:\MyApps\MConda38\

 my environment to be used under   c:\MyApps\MConda3\envs\pg

 

 

Edited December 26, 2022 by Talal Bader

[pyscripter 792]

• You should not set VenvPythonExe.  This is for environments created with venv and not Conda.
• The DLLName should be set before you call LoadDLL (e.g. in FormCreate)
• SetPythonHome:  It should be called with the same directory as the DLLPath

You may have to add the DLLPath to the environment path.

Edited December 26, 2022 by pyscripter

[Talal Bader 0]

41 minutes ago, pyscripter said:

• You should not set VenvPythonExe.  This is for environments created with venv and not Conda.
• The DLLName should be set before you call LoadDLL (e.g. in FormCreate)
• SetPythonHome:  It should be called with the same directory as the DLLPath

You may have to add the DLLPath to the environment path.

a HUGE thank you, following your comments, I moved all setting to form create, and did what you asked me to do, and now it works perfectly.

 

 

 

procedure TForm1.FormCreate(Sender: TObject);
begin
MaskFPUExceptions(true);

PythonEngine1.DllName := 'python38.dll';
PythonEngine1.DllPath := 'C:\MyApps\MConda38\envs\pg\'   ;
PythonEngine1.SetPythonHome('C:\MyApps\MConda38\envs\pg\');
PythonEngine1.UseWindowsConsole := False;
//PythonEngine1.VenvPythonExe := 'C:\MyApps\MConda38\envs\pg\python.exe';
PythonEngine1.RegVersion := '3.8';
 PythonEngine1.LoadDll;
end;

[pyscripter 792]

By the way, an easier way is to use PythonVersions.

var PyVersion := PythonVersionFromPath('C:\MyApps\MConda38\envs\pg\');
PythonEngine1.Assign(PyVersion);
PythonEngine1.LoadDLL;

 

[Talal Bader 0]

38 minutes ago, pyscripter said:

By the way, an easier way is to use PythonVersions.

var PyVersion := PythonVersionFromPath('C:\MyApps\MConda38\envs\pg\');
PythonEngine1.Assign(PyVersion);
PythonEngine1.LoadDLL;

 

thanks for the extra info shared.

I tried it same how you wrote it but it did not work ,  I tested it as below and it worked just fine

 

var PyVersion:TPythonVersion;
begin
  MaskFPUExceptions(true);
  if(PythonVersionFromPath('C:\MyApps\MConda38\envs\pg\', PyVersion)) then
  begin
    PyVersion.AssignTo(PythonEngine1);
    PythonEngine1.LoadDLL;
  end;

 

not sure if this is caused by different versions or I am missing something.  but indeed it is better way of doing it 🙂

 

[pyscripter 792]

4 hours ago, Talal Bader said:

not sure if this is caused by different versions or I am missing something.  but indeed it is better way of doing it 🙂

I was just writing code from memory without testing.  What you did is fine.