From dcba291d45d966ff67edf3aa16db163b1fe74f3a Mon Sep 17 00:00:00 2001
From: shitcoinsherpa <44278268+shitcoinsherpa@users.noreply.github.com>
Date: Thu, 5 Mar 2026 17:02:51 -0500
Subject: [PATCH] Use pywinpty instead of ptyprocess on Windows for PTY support

ptyprocess depends on Unix-only APIs (fork, openpty) and cannot work
on Windows at all. pywinpty provides a compatible PtyProcess interface
using the Windows ConPTY API.

This conditionally imports winpty.PtyProcess on Windows and
ptyprocess.PtyProcess on Unix. The pyproject.toml pty extra now uses
platform markers so the correct package is installed automatically.
---
 pyproject.toml            | 5 ++++-
 tools/process_registry.py | 7 +++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 498d1112..fb37ee34 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,10 @@ cron = ["croniter"]
 slack = ["slack-bolt>=1.18.0", "slack-sdk>=3.27.0"]
 cli = ["simple-term-menu"]
 tts-premium = ["elevenlabs"]
-pty = ["ptyprocess>=0.7.0"]
+pty = [
+  "ptyprocess>=0.7.0; sys_platform != 'win32'",
+  "pywinpty>=2.0.0; sys_platform == 'win32'",
+]
 honcho = ["honcho-ai>=2.0.1"]
 mcp = ["mcp>=1.2.0"]
 homeassistant = ["aiohttp>=3.9.0"]
diff --git a/tools/process_registry.py b/tools/process_registry.py
index 584f4b11..ed11a0e6 100644
--- a/tools/process_registry.py
+++ b/tools/process_registry.py
@@ -148,11 +148,14 @@ class ProcessRegistry:
         if use_pty:
             # Try PTY mode for interactive CLI tools
             try:
-                import ptyprocess
+                if _IS_WINDOWS:
+                    from winpty import PtyProcess as _PtyProcessCls
+                else:
+                    from ptyprocess import PtyProcess as _PtyProcessCls
                 user_shell = _find_shell()
                 pty_env = os.environ | (env_vars or {})
                 pty_env["PYTHONUNBUFFERED"] = "1"
-                pty_proc = ptyprocess.PtyProcess.spawn(
+                pty_proc = _PtyProcessCls.spawn(
                     [user_shell, "-lic", command],
                     cwd=session.cwd,
                     env=pty_env,