Function get_child_arguments

django/utils/autoreload.py:224–265

Return the executable. This contains a workaround for Windows if the executable is reported to not have the .exe extension which can cause bugs on reloading.

()

def get_child_arguments():
    """
    Return the executable. This contains a workaround for Windows if the
    executable is reported to not have the .exe extension which can cause bugs
    on reloading.
    """
    import __main__

    py_script = Path(sys.argv[0])
    exe_entrypoint = py_script.with_suffix(".exe")

    args = [sys.executable] + ["-W%s" % o for o in sys.warnoptions]
    if sys.implementation.name in ("cpython", "pypy"):
        args.extend(
            f"-X{key}" if value is True else f"-X{key}={value}"
            for key, value in sys._xoptions.items()
        )
    # __spec__ is set when the server was started with the `-m` option,
    # see https://docs.python.org/3/reference/import.html#main-spec
    # __spec__ may not exist, e.g. when running in a Conda env.
    if getattr(__main__, "__spec__", None) is not None and not exe_entrypoint.exists():
        spec = __main__.__spec__
        if (spec.name == "__main__" or spec.name.endswith(".__main__")) and spec.parent:
            name = spec.parent
        else:
            name = spec.name
        args += ["-m", name]
        args += sys.argv[1:]
    elif not py_script.exists():
        # sys.argv[0] may not exist for several reasons on Windows.
        # It may exist with a .exe extension or have a -script.py suffix.
        if exe_entrypoint.exists():
            # Should be executed directly, ignoring sys.executable.
            return [exe_entrypoint, *sys.argv[1:]]
        script_entrypoint = py_script.with_name("%s-script.py" % py_script.name)
        if script_entrypoint.exists():
            # Should be executed as usual.
            return [*args, script_entrypoint, *sys.argv[1:]]
        raise RuntimeError("Script %s does not exist." % py_script)
    else:
        args += sys.argv
    return args


def trigger_reload(filename):