def msvc_setup_env_once(env):
    try:
        has_run  = env["MSVC_SETUP_RUN"]
    except __HOLE__:
        has_run = False

    if not has_run:
        msvc_setup_env(env)
        env["MSVC_SETUP_RUN"] = True
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Tool/MSCommon/vc.py/msvc_setup_env_once