如何创建新的闭包单元对象？

制作封闭单元格的简单方法是进行封闭：

def make_cell(val=None):    x = val    def closure():        return x    return closure.__closure__[0]

如果要重新分配现有单元格的内容，则需要进行C API调用：

import ctypesPyCell_Set = ctypes.pythonapi.PyCell_Set# ctypes.pythonapi functions need to have argtypes and restype set manuallyPyCell_Set.argtypes = (ctypes.py_object, ctypes.py_object)# restype actually defaults to c_int here, but we might as well be explicitPyCell_Set.restype = ctypes.c_intPyCell_Set(cell, new_value)

当然，仅CPython。