Fix venv creation failing with embedded Python

Embedded Python 3.10 does not include the venv module, so
`python -m venv` always fails. Switch to virtualenv (pip-installed)
which works with embedded Python. Also fix operator precedence bug
in run_git_clone that could trigger editable installs when disabled.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: aivrar

install_configs/base.py

@@ -178,8 +178,8 @@ def run_git_clone(
             return False, "\n".join(output_lines)
 
         # Run editable install if requested
-        if editable and os.path.exists(os.path.join(clone_path, "setup.py")) or \
-           os.path.exists(os.path.join(clone_path, "pyproject.toml")):
+        if editable and (os.path.exists(os.path.join(clone_path, "setup.py")) or
+                         os.path.exists(os.path.join(clone_path, "pyproject.toml"))):
             if log_callback:
                 log_callback(f"Installing {repo_name} in editable mode...")
 

requirements.txt

@@ -3,6 +3,7 @@
 # (TTS model dependencies are installed in separate venvs)
 
 # --- GUI & Utilities ---
+virtualenv>=20.25.0
 huggingface_hub>=0.20.0
 requests>=2.28.0
 tqdm>=4.64.0

tts_manager.py

@@ -1635,8 +1635,10 @@ def _run_env_install(self, env: TTSEnvironment):
 
             if not env.venv_path.exists():
                 self.log(f"Creating virtual environment at {env.venv_path}...")
+                # Use virtualenv (pip-installed) instead of venv (stdlib) because
+                # embedded Python does not include the venv module.
                 result = subprocess.run(
-                    [PYTHON_PATH, "-m", "venv", str(env.venv_path)],
+                    [str(PYTHON_PATH), "-m", "virtualenv", str(env.venv_path)],
                     capture_output=True, text=True
                 )
                 if result.returncode != 0: