py-`__name__`-`__main__`

[jzztf]

关于 __name__ 和 __main__

• 脚本被当做主程序运行时, 其__name__属性为字符串"__main__"
• 脚本被当做模块运行时, 其__name__属性为其作为模块的名称

# 测试文件
#!/usr/bin/env python3

"""测试__name__ == '__main__'"""

def tester():
    print("this is main")

if __name__ == '__main__':
    tester()
=====================================
# shell
$ python3 test_name.py
this is main
$ python3
=====================================
# python3
>>> import test_name
>>> test_name.__name__
'test_name'