通过字符串导入从模块导入*

这是一个解决方案：导入模块，然后在当前名称空间中一个接一个地创建别名：

import importlib# import the modulemod = importlib.import_module('collections')# Determine a list of names to copy to the current name spacenames = getattr(mod, '__all__', [n for n in dir(mod) if not n.startswith('_')])# Copy those names into the current name spaceg = globals()for name in names:    g[name] = getattr(mod, name)