Error in random.shuffle

import random

a=range(10) random.shuffle(a) print(a)

If you enter a code like, you will get the following error:

/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/bin/python3.6 /Users//PycharmProjects/demo4.py Traceback (most recent call last): File "/Users//PycharmProjects/demo4.py", line 6, in random.shuffle(a) File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/random.py", line 274, in shuffle x[i], x[j] = x[j], x[i] TypeError: 'range' object does not support item assignment

Process finished with exit code 1

Random.randint (a, b) can generate random numbers normally, so I think there is no problem with importing random. Please help someone.

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