singletion模块
class Test():
pass
a = Test()
调用模块
from singleton.test import a
if __name__ == "__main__":
for item in range(10):
b = a
print(id(b))
标签：__,单例,创建,模式,模块,Test From： https://www.cnblogs.com/fuchenjie/p/17507987.html