got error : CodeLLDB requires Python 3.6(64bit), but looks like it is not installed on this machine

[ThiyamSingh]

Which OS: Windows 10 1809 (build 17763.195)
Which VSCode version: 1.30.1
Which extension version: lldb

Which adapter type:
Which LLDB version: 1.2.0

What is the problem and how did you get there:
I got an error "CodeLLDB requires Python 3.6(64bit), but looks like it is not installed on this machine." when I click on Start debugging green button in VS Code. After I install the Python 3.6, still the same error displayed.

Thanks

[vadimcn]

Did you install the 64-bit one?

[ThiyamSingh]

Yes I have installed 64-bit python.

[vadimcn]

What do you get if you run reg query HKLM\Software\Python\PythonCore\3.6\InstallPath ?

[ThiyamSingh]

I got

But I have installed python3.6(64-bit).

Regards,
Sunny

[vadimcn]

What about reg query HKLM\Software\Python\PythonCore\3.6\InstallPath /reg:64?
Are you using a 32-bit VSCode?

[ThiyamSingh]

I got the same error,

I have found a difference in registry. Python is registered under "HKEY_CURRENT_USER" but not under "HKEY_LOCAL_MACHINE" .

[vadimcn]

Ahh, ok, so you've installed Python for current user only?

[ThiyamSingh]

Now I have resolved the issue with configuring python manually under "HKEY_LOCAL_MACHINE". After running the debug I got no error messages and not hitting on any breakpoints.
I am sharing the screenshot of the terminal output below,

Regards,
Sunny

[Infl1ght]

Unfortunately I have got the same issue...

[vrgtms]

+1 :(

[vrgtms]

I've got it to work. The solution is:

1. Open %userprofile%\.vscode\extensions\vadimcn.vscode-lldb-1.2.0\extension\adapter.js
2. In the line How to make it work interactively with the editor? #65 change the first argument of the util.readRegistry to 'HKEY_CURRENT_USER\Software\Python\PythonCore\3.6\InstallPath'
3. Save, reload vscode.

Tested on rust code, on 64bit windows 7, works fine.

[vrgtms]

Made a pull request for that. As I can tell it fails because the pipeline configs.

[vadimcn]

Should be fixed in 1.2.1

[JohannesBeranek]

Same issue again when installing current python 3.7.2 which is the one listed as "Latest python 3 release" on the python website

[vadimcn]

Different minor versions of Python are not binary-compatible. Because LLDB I am bundling was built against 3.6, it has to be Python 3.6.x, not 3.7 or 3.8.

[fleimgruber]

@vadimcn What is your opinion on supporting custom Python install locations (with matching minor ABI), e.g. of a virtual environment or conda environment? IMHO users of these tools usually do not use the official Python installers.

[schungx]

Setting PYTHONHOME works for different Python versions > 3.3.

[MACDfree]

Setting PYTHONHOME works for different Python versions > 3.3.

This can be demonstrated by the following code：

https://github.com/vadimcn/vscode-lldb/blob/874ac867ac413865af4fe07817ea537d253ad42f/adapter2/loader/find_python.rs#L118