#
"""entry - Simple, lazy, module executing support."""
# Copyright © 2014-2020 James Rowe <jnrowe@gmail.com>
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# This file is part of jnrbase.
#
# jnrbase is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# jnrbase is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# jnrbase. If not, see <http://www.gnu.org/licenses/>.
from typing import Callable, Optional
[docs]def entry_point(
__func: Callable[[None], int]) -> Optional[Callable[[None], int]]:
"""Execute function when module is run directly.
Note:
This allows fall through for importing modules that use it.
Args:
__func: Function to run
"""
if __func.__module__ == '__main__':
import sys
sys.exit(__func())
else:
return __func