python 控制包是否可导入

python 控制包是否可导入

init.py

__all__=["list_utils","str_utils"]
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list_utils.py

def show_list(list1):
    return list1
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str_utils.py

str_name = ''


def str_reverse(s):
    global str_name
    reversed1 = reversed(str(s))
    if len(s) == 0:
        str_name = ''
    else:
        for e in reversed1:
            str_name = f"{str_name}{e}"
    print(f"方法内调用{str_name}")
    return str_name


def str_length(s):
    print(s)
    return len(s)


if __name__ == '__main__':
    str_reverse("小猪猪")

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test_my_package.py

from my_package_utils import *

reverse = str_utils.str_reverse("这是一个奥特曼")
show_list = list_utils.show_list(["这是一个奥特曼"])
print(reverse)
print(show_list)

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如果__init__.py中的__all__=[“list_utils”,“str_utils”]数组不包含str_utils,那么str_utils的所有方法都无法被test_my_package.py使用