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run_scapy: prefer the Python Launcher on Windows 

Use the Python Launcher py.exe if it is found and let it
handle the -2/-3 argument.

Also add a 'setlocal' to prevent the script from messing
with the callers variables.

Fixes #3818
This commit is contained in:
Dr. Matthias St. Pierre 2022-12-11 07:57:56 +01:00 committed by gpotter2
parent 61756e0c1a
commit 5f0bb6c435
1 changed files with 18 additions and 5 deletions
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23
run_scapy.bat
View File

@ -1,17 +1,30 @@
@echo off
setlocal
set PYTHONPATH=%~dp0
REM shift will not work with %*
set "_args=%*"
IF "%PYTHON%" == "" set PYTHON=py
WHERE %PYTHON% >nul 2>&1
IF %ERRORLEVEL% NEQ 0 set PYTHON=
IF "%1" == "-2" (
set PYTHON=python
if "%PYTHON%" == "py" (
set "PYTHON=py -2"
) else (
set PYTHON=python
)
set "_args=%_args:~3%"
) ELSE IF "%1" == "-3" (
set PYTHON=python3
if "%PYTHON%" == "py" (
set "PYTHON=py -3"
) else (
set PYTHON=python3
)
set "_args=%_args:~3%"
) else (
IF "%PYTHON%" == "" set PYTHON=python3
WHERE %PYTHON% >nul 2>&1
IF %ERRORLEVEL% NEQ 0 set PYTHON=python
)
IF "%PYTHON%" == "" set PYTHON=python3
WHERE %PYTHON% >nul 2>&1
IF %ERRORLEVEL% NEQ 0 set PYTHON=python
%PYTHON% -m scapy %_args%
title Scapy - dead
PAUSE