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UUID?Universally Unique Identifier??????????????????????????Python????????UUID????????????UUID????????Python?UUID??????????????
UUID1???????????MAC????????????????????????????????MAC?????????????????????????IP????MAC?????????
?????????
node
??????????MAC????clock_seq
??????????????????UUID2?UUID1??????????4????POSIX?UID?GID????????????????Python??????????????????
UUID3???????????MD5??????????????????????????????????UUID??????????????????????
UUID4???????????????????????????????????????????????????????????????
UUID5?UUID3??????SHA-1?????????????????????UUID3?????
??UUID????????????
??Python UUID???????????????????UUID?
import uuid# ????ID???????UUIDuuid.uuid1() UUID('a8098c1a-f86e-11da-bd1a-00112444be1e')# ??DNS?????????UUIDuuid.uuid3(uuid.NAMESPACE_DNS, 'python.org') UUID('6fa459ea-ee8a-3ca4-894e-db77e160355e')# ????UUIDuuid.uuid4() UUID('16fd2706-8baf-433b-82eb-8c7fada847da')# ??SHA-1????UUIDuuid.uuid5(uuid.NAMESPACE_DNS, 'python.org') UUID('886313e1-3b8a-5372-9b90-0c9aee199e5d')# ??????????UUIDx = uuid.UUID('{00010203-0405-0607-0809-0a0b0c0d0e0f}')str(x) # '00010203-0405-0607-0809-0a0b0c0d0e0f'x.bytes # '\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f'uuid.UUID(bytes=x.bytes) UUID('00010203-0405-0607-0809-0a0b0c0d0e0f')
?????????Python?UUID?????????????????????????????
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