conftest.py 文件源码

def anypython(request):
    name = request.param
    executable = getexecutable(name)
    if executable is None:
        if sys.platform == "win32":
            executable = winpymap.get(name, None)
            if executable:
                executable = py.path.local(executable)
                if executable.check():
                    return executable
                executable = None
        py.test.skip("no %s found" % (name,))
    if "execmodel" in request.fixturenames and name != 'sys.executable':
        backend = request.getfuncargvalue("execmodel").backend
        if backend != "thread":
            pytest.xfail(
                "cannot run %r execmodel with bare %s" % (backend, name))
    return executable