3
h>`B @ s d Z dZdj d jddZdj d Zddd d
g\ZZZZ d d l
Z
e
j d,krRe Z
dd ZG dd deZdd Zdd Zdd Zd Z ZZdd Zdd Zd d Zd ad d Zd-d d!Z d"d# Z d$d% Z d&d' Z ed(Z ed)Z!ed*Z"ed+Z#d S ).aU UUID objects (universally unique identifiers) according to RFC 4122.
This module provides immutable UUID objects (class UUID) and the functions
uuid1(), uuid3(), uuid4(), uuid5() for generating version 1, 3, 4, and 5
UUIDs as specified in RFC 4122.
If all you want is a unique ID, you should probably call uuid1() or uuid4().
Note that uuid1() may compromise privacy since it creates a UUID containing
the computer's network address. uuid4() creates a random UUID.
Typical usage:
>>> import uuid
# make a UUID based on the host ID and current time
>>> uuid.uuid1()
UUID('a8098c1a-f86e-11da-bd1a-00112444be1e')
# make a UUID using an MD5 hash of a namespace UUID and a name
>>> uuid.uuid3(uuid.NAMESPACE_DNS, 'python.org')
UUID('6fa459ea-ee8a-3ca4-894e-db77e160355e')
# make a random UUID
>>> uuid.uuid4()
UUID('16fd2706-8baf-433b-82eb-8c7fada847da')
# make a UUID using a SHA-1 hash of a namespace UUID and a name
>>> uuid.uuid5(uuid.NAMESPACE_DNS, 'python.org')
UUID('886313e1-3b8a-5372-9b90-0c9aee199e5d')
# make a UUID from a string of hex digits (braces and hyphens ignored)
>>> x = uuid.UUID('{00010203-0405-0607-0809-0a0b0c0d0e0f}')
# convert a UUID to a string of hex digits in standard form
>>> str(x)
'00010203-0405-0607-0809-0a0b0c0d0e0f'
# get the raw 16 bytes of the UUID
>>> x.bytes
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f'
# make a UUID from a 16-byte string
>>> uuid.UUID(bytes=x.bytes)
UUID('00010203-0405-0607-0809-0a0b0c0d0e0f')
This module works with Python 2.3 or higher.zKa-Ping Yee z $Date: 2006/08/24 19:08:53 $ /-z$Revision: 1.2 $z reserved for NCS compatibilityzspecified in RFC 4122z$reserved for Microsoft compatibilityz reserved for future definition N c C s | |k| |k S )N )xyr r /usr/lib/python3.6/uuid.py= s r
c @ s* e Zd ZdZd-ddZdd Zdd Zd d
Zd d Zd
d Z dd Z
dd Z e e Z
dd Ze eZdd Ze eZdd Ze eZdd Ze eZdd Ze eZd d Ze eZd d Ze eZd!d" Z e e Z d#d$ Z e e Z d%d& Z e e Z!d'd( Z"e e"Z#d)d* Z$e e$Z%d+d, Z&e e&Z'dS ).UUIDaT Instances of the UUID class represent UUIDs as specified in RFC 4122.
UUID objects are immutable, hashable, and usable as dictionary keys.
Converting a UUID to a string with str() yields something in the form
'12345678-1234-1234-1234-123456789abc'. The UUID constructor accepts
four possible forms: a similar string of hexadecimal digits, or a
string of 16 raw bytes as an argument named 'bytes', or a tuple of
six integer fields (with 32-bit, 16-bit, 16-bit, 8-bit, 8-bit, and
48-bit values respectively) as an argument named 'fields', or a single
128-bit integer as an argument named 'int'.
UUIDs have these read-only attributes:
bytes the UUID as a 16-byte string
fields a tuple of the six integer fields of the UUID,
which are also available as six individual attributes
and two derived attributes:
time_low the first 32 bits of the UUID
time_mid the next 16 bits of the UUID
time_hi_version the next 16 bits of the UUID
clock_seq_hi_variant the next 8 bits of the UUID
clock_seq_low the next 8 bits of the UUID
node the last 48 bits of the UUID
time the 60-bit timestamp
clock_seq the 14-bit sequence number
hex the UUID as a 32-character hexadecimal string
int the UUID as a 128-bit integer
urn the UUID as a URN as specified in RFC 4122
variant the UUID variant (one of the constants RESERVED_NCS,
RFC_4122, RESERVED_MICROSOFT, or RESERVED_FUTURE)
version the UUID version number (1 through 5, meaningful only
when the variant is RFC_4122)
Nc
C s ||||gj ddkr td|dk rj|jddjdd}|jdjdd}t|d kr`td
t|d }|dk rt|d krtd td
d ttt | d }|dk r t|dkrtd|\}}}} }
} d| kotd&k n stdd| ko td'k n s tdd| ko4td(k n sDtdd| ko\td)k n sltdd|
kotd*k n stdd| kotd+k n std| td> |
B } |td> |td> B |td > B | td> B | B }|dk r6d| ko&dtd > k n s6td |dk rd| koTd kn sdtd |d!td> M }|d"td> O }|d#td > M }||td$> O }|| j
d%< dS ),a Create a UUID from either a string of 32 hexadecimal digits,
a string of 16 bytes as the 'bytes' argument, a tuple of six
integers (32-bit time_low, 16-bit time_mid, 16-bit time_hi_version,
8-bit clock_seq_hi_variant, 8-bit clock_seq_low, 48-bit node) as
the 'fields' argument, or a single 128-bit integer as the 'int'
argument. When a string of hex digits is given, curly braces,
hyphens, and a URN prefix are all optional. For example, these
expressions all yield the same UUID:
UUID('{12345678-1234-5678-1234-567812345678}')
UUID('12345678123456781234567812345678')
UUID('urn:uuid:12345678-1234-5678-1234-567812345678')
UUID(bytes='\x12\x34\x56\x78'*4)
UUID(fields=(0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678))
UUID(int=0x12345678123456781234567812345678)
Exactly one of 'hex', 'bytes', 'fields', or 'int' must be given.
The 'version' argument is optional; if given, the resulting UUID
will have its variant and version number set according to RFC 4122,
overriding bits in the given 'hex', 'bytes', 'fields', or 'int'.
Nr z+need just one of hex, bytes, fields, or intzurn: zuuid:z{}r z$badly formed hexadecimal UUID string z bytes is not a 16-char stringz%02x zfields is not a 6-tupler r z*field 1 out of range (need a 32-bit value)z*field 2 out of range (need a 16-bit value)z*field 3 out of range (need a 16-bit value) z*field 4 out of range (need an 8-bit value)z*field 5 out of range (need an 8-bit value)0 z*field 6 out of range (need a 48-bit value)` P @ z*int is out of range (need a 128-bit value) zillegal version numberi i i L intl i i r l ) count TypeErrorreplacestriplen
ValueErrorlongtuplemapord__dict__)
selfhexbytesfieldsr versiontime_lowtime_midtime_hi_versionclock_seq_hi_variant
clock_seq_lownode clock_seqr r r __init__j sR
4
$
z
UUID.__init__c C s t |tr| j|jk S tS )N)
isinstancer r NotImplemented)r% otherr r r __lt__ s
z UUID.__lt__c C s
t | jS )N)hashr )r% r r r __hash__ s z
UUID.__hash__c C s | j S )N)r )r% r r r __int__ s z UUID.__int__c C s dt | S )NzUUID(%r))str)r% r r r __repr__ s z
UUID.__repr__c C s t dd S )NzUUID objects are immutable)r )r% namevaluer r r __setattr__ s zUUID.__setattr__c C sD d| j }d|d d |dd |dd |dd |dd f S )Nz%032xz%s-%s-%s-%s-%sr r )r )r% r& r r r __str__ s
z UUID.__str__c C s4 d}x*t dddD ]}t| j|? d@ | }qW |S )Nr r r r )rangechrr )r% r' Zshiftr r r get_bytes s zUUID.get_bytesc C s | j | j| j| j| j| jfS )N)r* r+ r, r- r. r/ )r% r r r
get_fields s zUUID.get_fieldsc C s | j td? S )Nr )r r )r% r r r get_time_low s zUUID.get_time_lowc C s | j td? d@ S )Nr i )r r )r% r r r get_time_mid s zUUID.get_time_midc C s | j td? d@ S )Nr i )r r )r% r r r get_time_hi_version s zUUID.get_time_hi_versionc C s | j td? d@ S )N8 rA )r r )r% r r r get_clock_seq_hi_variant s z UUID.get_clock_seq_hi_variantc C s | j td? d@ S )Nr rA )r r )r% r r r get_clock_seq_low s zUUID.get_clock_seq_lowc C s& | j d@ td> | jtd> B | jB S )Ni r r
)r, r r+ r* )r% r r r get_time s z
UUID.get_timec C s | j td@ td> | jB S )N? r )r- r r. )r% r r r
get_clock_seq s zUUID.get_clock_seqc C s
| j d@ S )Nl )r )r% r r r get_node s z
UUID.get_nodec C s
d| j S )Nz%032x)r )r% r r r get_hex s z UUID.get_hexc C s dt | S )Nz urn:uuid:)r9 )r% r r r get_urn s z UUID.get_urnc C sJ | j dtd> @ stS | j dtd> @ s,tS | j dtd> @ sBtS tS d S )Ni r i @ i )r r RESERVED_NCSRFC_4122RESERVED_MICROSOFTRESERVED_FUTURE)r% r r r get_variant s zUUID.get_variantc C s$ | j tkr t| jtd? d@ S d S )Nr )variantrS r r )r% r r r get_version s
zUUID.get_version)NNNNN)(__name__
__module__ __qualname____doc__r1 r5 r7 r8 r: r= r@ rD propertyr' rE r( rF r* rG r+ rH r, rJ r- rK r. rL timerN r0 rO r/ rP r& rQ ZurnrV rX rY r) r r r r r @ sJ (
E
r c C s ddl } xd D ]}y| j| jj|d}W n tk
r@ wY nX xT|D ]L}|j j }x:tt|D ]*}|| d
krft ||d j
d
dd S qfW qHW qW dS )z5Get the hardware address on Unix by running ifconfig.r Nr /sbin/ /usr/sbinZifconfighwaddretherr :r )r r` ra )rb rc ) ospopenpathjoinIOErrorlowersplitrB r r r )re dpipelineZwordsir r r _ifconfig_getnode s
rp c C s ddl } ddl}dddg}y:ddl}|jd}|jjj|d |jd|jj d W n Y nX x|D ]z}y | j
| j j |dd }W n t
k
r whY nX x@|D ]8}|jd
d j j }|jd |rt|jd
ddS qW qhW dS )z |d td> |d td > |d
td> |d td > |d
S W dS )ztGet the hardware address on Windows using NetBIOS calls.
See http://support.microsoft.com/kb/118623 for details.r N*r ( r r
r r r ) win32wnetnetbiosZNCBZNCBENUMZCommandZ LANA_ENUMZBufferZ_packZNetbiosZ_unpackrB ZlengthZResetZNCBRESETr# ZlanaZLana_numZNCBASTATljustZCallnameZADAPTER_STATUSr" Zadapter_addressr )r r ZncbZadaptersro Zstatusr' r r r _netbios_getnodeB s2 r c C s t t ttjdjS )z.Get the hardware address on Unix using ctypes.)r' )_uuid_generate_time_bufferr rawr/ r r r r _unixdll_getnoded s r c C s t tdkrttjdjS dS )z1Get the hardware address on Windows using ctypes.r )r' N) _UuidCreater r r r/ r r r r _windll_getnodej s r c C s$ ddl } | jddtd> tdB S )zCGet a random node ID, with eighth bit set as suggested by RFC 4122.r Nr r l )random randranger )r r r r _random_getnodep s r c
C sp t dk r t S ddl} | jdkr*tttg}nttg}x8|tg D ]*}y
| a W n w>Y nX t dk r>t S q>W dS )a! Get the hardware address as a 48-bit integer. The first time this
runs, it may launch a separate program, which could be quite slow. If
all attempts to obtain the hardware address fail, we choose a random
48-bit number with its eighth bit set to 1 as recommended in RFC 4122.Nr Zwin32) _nodesysplatformr r rz r rp r )r Zgettersgetterr r r getnodex s
r c C s t r0| | kodkn r0t t ttjdS ddl}t|j d }t|d td }|dkr~ddl}|jdtd> }|td @ }|td
? td @ }|td ? td
@ }|td@ } |td? td@ }
| dkrt } t||||
| | fddS )a Generate a UUID from a host ID, sequence number, and the current time.
If 'node' is not given, getnode() is used to obtain the hardware
address. If 'clock_seq' is given, it is used as the sequence number;
otherwise a random 14-bit sequence number is chosen.N)r' r g eAd l @'Hw
r l r
i r i rA r rM )r( r) )
r r r r r_ r r r r r ) r/ r0 r_ Z nanosecondsZ timestampr r* r+ r, r. r- r r r uuid1 s$ r c C s0 ddl }|j | j| j }t|dd ddS )zAGenerate a UUID from the MD5 hash of a namespace UUID and a name.r Nr r )r' r) )md5r' digestr ) namespacer; r my_hashr r r uuid3 s r c
sh t rt t ttjdS yddl} t| jdddS ddl fddtdD }t|ddS dS ) zGenerate a random UUID.)r' r Nr r )r' r) c s g | ]}t jd qS )r )rC r ).0ro )r r r
s zuuid4..)_uuid_generate_randomr r r re urandomr rB )re r' r )r r uuid4 s r c C s0 ddl }|j | j| j }t|dd ddS )zCGenerate a UUID from the SHA-1 hash of a namespace UUID and a name.r Nr r )r' r) )shar' r r )r r; r r r r r uuid5 s r z$6ba7b810-9dad-11d1-80b4-00c04fd430c8z$6ba7b811-9dad-11d1-80b4-00c04fd430c8z$6ba7b812-9dad-11d1-80b4-00c04fd430c8z$6ba7b814-9dad-11d1-80b4-00c04fd430c8)r )NN)$r]
__author__rk r Z__date__ __version__rR rS rT rU r version_infor r Zcmpobjectr rp rz r r r r r r r r r r r r r Z
NAMESPACE_DNSZ
NAMESPACE_URLZ
NAMESPACE_OIDZNAMESPACE_X500r r r r . s8
]