Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
I’m trying to create a Python virtual environment (venv), but it’s impossible. The Cursor IDE keeps loading indefinitely. I have a screenshot of my workspace, which has almost no code, yet I cannot enable or disable anything. I already tried restarting the IDE, but after a few seconds, it starts loading again and completely freezes. I also disabled IntelliSense because it seemed to be conflicting with the Python plugin.
Steps to Reproduce
Simply try to create any Python virtual environment.
Screenshots / Screen Recordings
Operating System
Windows 10/11
Current Cursor Version (Menu → About Cursor → Copy)
Version: 1.5.5 (user setup)
VSCode Version: 1.99.3
Commit: 823f58d4f60b795a6aefb9955933f3a2f0331d70
Date: 2025-08-25T17:40:25.290Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100
Does this stop you from using Cursor
Yes - Cursor is unusable
Thanks for reporting this. Please try these steps:
• First, please try running Cursor without extensions to see if that resolves the loading issue: cursor --disable-extensions from a terminal or command prompt. If this fixes it, re-enable extensions one by one to find the problematic one.
• Try creating the venv through the terminal instead of the Python extension interface. Open the integrated terminal and run python -m venv .venv, then use Command Palette > “Python: Select Interpreter” to manually select the interpreter from your .venv folder.
• Since you mentioned disabling IntelliSense due to conflicts, check if you have multiple Python extensions installed that might be interfering with each other. The recommended setup is using the official Python extension along with Cursor Pyright. Link here: Cursor – Python
Please let us know if this still happens after these steps.
Hi @sanjeed5, thanks for the guidance! Here are my findings.
What I tried from your checklist
-
Run with cursor --disable-extensions: 
did not work. Even with all extensions disabled, when I try to save I get the dialog “Saving editors with unsaved changes is taking a bit longer…” and it never completes (screenshot attached).
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Create venv via terminal: python -m venv .venv → 
works (I was already doing this, but confirmed again)
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Select interpreter via Command Palette: I chose ./.venv/bin/python (see screenshot). After selecting it, Cursor starts “loading” and then the UI becomes unresponsive/freezes.
New issue (saving files)
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When I press Ctrl+S to save (e.g., gpt_completions.py), the notification “Writing into file…” appears and never finishes (screenshot attached).
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From that moment, Cursor gradually hangs: the editor becomes unresponsive, and even the agent in auto mode can’t open an integrated terminal.
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This seems to happen consistently after activating a venv interpreter.
Installed Python-related extensions
I realize I had quite a few Python-related extensions installed. I previously disabled IntelliSense because it seemed to conflict, but the freeze still occurs. I also installed the extension you recommended.
