TypeError: ' Range ' object doesn ' t support item deletion

Python is a gradual iterative development process, he is not backward compatible, not up-to-date compatibility, version inconsistency, the program is not running.

The following is code that can run in Python 2 and cannot be run in Python 3. It's very simple, actually. But these edges and corners are really annoying.

>>> A=range (10)
>>> A
Range (0, 10)
>>> Del[a[1]]
Traceback (most recent):
File "<pyshell#6>", line 1, in <module>
DEL[A[1]]
TypeError: ' Range ' object doesn ' t support item deletion

To report this error:

In fact, as long as this modification is OK,

>>> a=list (Range (10))
>>> A
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> Del[a[1]]
>>> A
[0, 2, 3, 4, 5, 6, 7, 8, 9]
>>>

TypeError: ' Range ' object doesn ' t support item deletion