Auto-select python from the activated environment

Environment data

• VS Code version: 1.51.1
• Extension version (available under the Extensions sidebar): (what is that? not finding)
• OS and version: Windows 10 1909 (18363.1198)
• Python version (& distribution if applicable, e.g. Anaconda): 3.7.8 (Anaconda)
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): conda
• Relevant/affected Python packages and their versions: PySide2==5.15.2, sip==5.5.0
• Relevant/affected Python-related VS Code extensions and their versions: Anaconda Extension Pack==v1.0.1, Python==v2020.11.371526539, Qt for Python==v0.5.3
• Value of the python.languageServer setting: Jedi

[NOTE: If you suspect that your issue is related to the Microsoft Python Language Server (python.languageServer: 'Microsoft'), please download our new language server Pylance from the VS Code marketplace to see if that fixes your issue]

Expected behaviour

well i expected it to import PySide2, but it failed.

Actual behaviour

When running the python script with the automatically generated launch.json

Traceback (most recent call last):
  File "e:\Python\myenv\src\main.py", line 16, in <module>
    from draw import draw_window
  File "e:\Python\myenv\src\draw.py", line 13, in <module>
    from PySide2 import QtCore, QtGui, QtWidgets
ModuleNotFoundError: No module named 'PySide2'

Steps to reproduce:

[NOTE: Self-contained, minimal reproducing code samples are extremely helpful and will expedite addressing your issue]

1. Create a file (say, main.py)

2. Input only one single line: import PySide2

3. Save and change to the virtual env, run with the debugger provided by Python extension

4. You’ll see the ModuleNotFoundError: No module named 'PySide2'

5. Running python main.py doesn’t raise this error

6. Running import PySide2 in python interactivate mode doesn’t raise this error

7. I’m pretty sure that I DID pip install PySide2 in my virtual env, and pip show PySide2 DOESN’T raise WARNING: Package(s) not found, so i suspect it a problem has something to do with the extension.

Logs

I post the output of pip freeze of my env here:

certifi==2020.12.5
packaging==20.7
pyparsing==2.4.7
PyQt5==5.15.2
PyQt5-sip==12.8.1
PySide2==5.15.2
pywin32==225
shiboken2==5.15.2
sip==5.5.0
toml==0.10.2
wincertstore==0.2

[karthiknadig]

Yes. The extension should be able to select the python based on activated environment or CONDA_PREFIX.

We have marked this issue as “needs decision” to make sure we have a conversation about your idea. We plan to leave this feature request open for at least a month to see how many 👍 votes the opening comment gets to help us make our decision.

[karrtikr]

Closing in favor of https://github.com/microsoft/vscode-python/issues/18178