make VENV envvar accept absolute path instead of relative

@echo off

if not defined PYTHON (set PYTHON=python)

if not defined VENV_DIR (set VENV_DIR=venv)

if not defined VENV_DIR (set VENV_DIR=%~dp0\venv)

set ERROR_REPORTING=FALSE

goto :show_stdout_stderr

:activate_venv

set PYTHON="%~dp0%VENV_DIR%\Scripts\Python.exe"

set PYTHON="%VENV_DIR%\Scripts\Python.exe"

echo venv %PYTHON%

if [%ACCELERATE%] == ["True"] goto :accelerate

goto :launch

:accelerate

echo "Checking for accelerate"

set ACCELERATE="%~dp0%VENV_DIR%\Scripts\accelerate.exe"

set ACCELERATE="%VENV_DIR%\Scripts\accelerate.exe"

if EXIST %ACCELERATE% goto :accelerate_launch

:launch