Function _run_module_as_main

_pydevd_bundle/pydevd_runpy.py:203–228

Runs the designated module in the __main__ namespace Note that the executed module will have full access to the __main__ namespace. If this is not desirable, the run_module() function should be used to run the module code in a fresh namespace. At the very least, these variables in

(mod_name, alter_argv=True)

# creation when run_module() no longer met the needs of
# mainmodule.c, but couldn't be changed because it was public)
def _run_module_as_main(mod_name, alter_argv=True):
    """Runs the designated module in the __main__ namespace

    Note that the executed module will have full access to the
    __main__ namespace. If this is not desirable, the run_module()
    function should be used to run the module code in a fresh namespace.

    At the very least, these variables in __main__ will be overwritten:
        __name__
        __file__
        __cached__
        __loader__
        __package__
    """
    try:
        if alter_argv or mod_name != "__main__":  # i.e. -m switch
            mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
        else:  # i.e. directory or zipfile execution
            mod_name, mod_spec, code = _get_main_module_details(_Error)
    except _Error as exc:
        msg = "%s: %s" % (sys.executable, exc)
        sys.exit(msg)
    main_globals = sys.modules["__main__"].__dict__
    if alter_argv:
        sys.argv[0] = mod_spec.origin
    return _run_code(code, main_globals, None, "__main__", mod_spec)


def run_module(mod_name, init_globals=None, run_name=None, alter_sys=False):