dcu的调试任务启动之后，上不了网啊，导致无法升级python到3.10,进而无法升级飞桨版本....
sudo python -m pip install --pre paddlepaddle-dcu -i https://www.paddlepaddle.org.cn/packages/nightly/dcu/
Looking in indexes: https://www.paddlepaddle.org.cn/packages/nightly/dcu/
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff952496f10>: Failed to establish a new connection: [Errno -2] Name or service not known')': /packages/nightly/dcu/paddlepaddle-dcu/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff95243a250>: Failed to establish a new connection: [Errno -2] Name or service not known')': /packages/nightly/dcu/paddlepaddle-dcu/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff95243a400>: Failed to establish a new connection: [Errno -2] Name or service not known')': /packages/nightly/dcu/paddlepaddle-dcu/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff95243a5b0>: Failed to establish a new connection: [Errno -2] Name or service not known')': /packages/nightly/dcu/paddlepaddle-dcu/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff95243a760>: Failed to establish a new connection: [Errno -2] Name or service not known')': /packages/nightly/dcu/paddlepaddle-dcu/
ERROR: Could not find a version that satisfies the requirement paddlepaddle-dcu (from versions: none)
ERROR: No matching distribution found for paddlepaddle-dcu
