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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() # doctest: +SKIP
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() # doctest: +SKIP
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
b'\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')
u Ka-Ping Yee <ping@zesty.ca>u reserved for NCS compatibilityu specified in RFC 4122u$ reserved for Microsoft compatibilityu reserved for future definitionc B s� | Ee Z d Z d Z d8 d8 d8 d8 d8 d8 d d � Z d d � Z d d � Z d d � Z d
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d d � Z d d � Z d d � Z e d d � � Z e d d � � Z e d d � � Z e d d! � � Z e d" d# � � Z e d$ d% � � Z e d& d' � � Z e d( d) � � Z e d* d+ � � Z e d, d- � � Z e d. d/ � � Z e d0 d1 � � Z e d2 d3 � � Z e d4 d5 � � Z e d6 d7 � � Z d8 S(9 u UUIDu� 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
five possible forms: a similar string of hexadecimal digits, 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 string
of 16 bytes (with all the integer fields in big-endian order) as an
argument named 'bytes', or a string of 16 bytes (with the first three
fields in little-endian order) as an argument named 'bytes_le', 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 (containing the six
integer fields in big-endian byte order)
bytes_le the UUID as a 16-byte string (with time_low, time_mid,
and time_hi_version in little-endian byte order)
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)
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d >B| B} n | d k r_d | k oHd- k n s_t d � � q_n | d k r�d | k o�d k n s�t d! � � n | d/ M} | d0 O} | d2 M} | | d% >O} n | | j d& <d S(3 um Create a UUID from either a string of 32 hexadecimal digits,
a string of 16 bytes as the 'bytes' argument, a string of 16 bytes
in little-endian order as the 'bytes_le' 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(bytes_le='\x78\x56\x34\x12\x34\x12\x78\x56' +
'\x12\x34\x56\x78\x12\x34\x56\x78')
UUID(fields=(0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678))
UUID(int=0x12345678123456781234567812345678)
Exactly one of 'hex', 'bytes', 'bytes_le', 'fields', or 'int' must
be given. The 'version' argument is optional; if given, the resulting
UUID will have its variant and version set according to RFC 4122,
overriding the given 'hex', 'bytes', 'bytes_le', 'fields', or 'int'.
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UUID.bytes_lec C s( | j | j | j | j | j | j f S( N( u time_lowu time_midu time_hi_versionu clock_seq_hi_variantu
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UUID.time_midc C s | j d ?d @S( Ni@ i�� ( u int( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu time_hi_version s u UUID.time_hi_versionc C s | j d ?d @S( Ni8 i� ( u int( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu clock_seq_hi_variant s u UUID.clock_seq_hi_variantc C s | j d ?d @S( Ni0 i� ( u int( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu
clock_seq_low s u UUID.clock_seq_lowc C s! | j d @d >| j d >B| j BS( Ni� i0 i ( u time_hi_versionu time_midu time_low( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu time s u UUID.timec C s | j d @d >| j BS( Ni? i ( u clock_seq_hi_variantu
clock_seq_low( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu clock_seq s u UUID.clock_seqc C s | j d @S( Nl ��� ( u int( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu node s u UUID.nodec C s d | j S( Nu %032x( u int( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu hex! s u UUID.hexc C s d t | � S( Nu urn:uuid:( u str( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu urn% s u UUID.urnc C s; | j d @s t S| j d @s" t S| j d @s3 t St Sd S( Ni � i0 i @ i l l l ( u intu RESERVED_NCSu RFC_4122u RESERVED_MICROSOFTu RESERVED_FUTURE( u self( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu variant) s
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__module__u __qualname__u __doc__u Noneu __init__u __eq__u __ne__u __lt__u __gt__u __le__u __ge__u __hash__u __int__u __repr__u __setattr__u __str__u propertyu bytesu bytes_leu fieldsu time_lowu time_midu time_hi_versionu clock_seq_hi_variantu
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S( u5 Get the hardware address on Unix by running ifconfig.u u -au -avu ifconfigu hwaddru etherc S s | d S( Ni ( ( u i( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu <lambda>^ s u# _ifconfig_getnode.<locals>.<lambda>i Nu arpu -anc S s d S( Ni i����( ( u i( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu <lambda>f s u lanscanu -aiu lan0c S s d S( Ni ( ( u i( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu <lambda>k s ( u u -au -av( u _find_macu socketu
gethostbynameu gethostnameu None( u argsu macu socketu ip_addr( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu _ifconfig_getnodeY s
! u _ifconfig_getnodec C sC d d l } d d l } d d d g } yQ d d l } | j d � } | j j j | d � | j d | j j d � � Wn Yn Xx� | D]� } z� y& | j
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d � d � Sq� WWd | j � Xq� Wd S( u< Get the hardware address on Windows by running ipconfig.exe.i Nu u c:\windows\system32u c:\winnt\system32i, u mbcsu ipconfigu /allu :i u& ([0-9a-f][0-9a-f]-){5}[0-9a-f][0-9a-f]u -i i����( u osu reu ctypesu create_string_bufferu windllu kernel32u GetSystemDirectoryAu insertu valueu decodeu popenu pathu joinu IOErroru splitu stripu loweru matchu intu replaceu close( u osu reu dirsu ctypesu bufferu diru pipeu lineu value( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu _ipconfig_getnodeq s&
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u _netbios_getnodei Nu uuidu cu uuid_generate_randomu uuid_generate_timeu darwinu .i u UuidCreateSequentialu
UuidCreatec C s2 t j d � } t | � t d t | j � � j S( u. Get the hardware address on Unix using ctypes.i u bytes( u ctypesu create_string_bufferu _uuid_generate_timeu UUIDu bytes_u rawu node( u _buffer( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu _unixdll_getnode� s
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| � a Wn wW Yn Xt d k rW t SqW Wd S( u3 Get the hardware address as a 48-bit positive 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.
i Nu win32(
u _nodeu Noneu sysu platformu _windll_getnodeu _netbios_getnodeu _ipconfig_getnodeu _unixdll_getnodeu _ifconfig_getnodeu _random_getnode( u sysu gettersu getter( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu getnode� s
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| f d d � S( u Generate a UUID from a host ID, sequence number, and the current time.
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address. If 'clock_seq' is given, it is used as the sequence number;
otherwise a random 14-bit sequence number is chosen.i u bytesi Ng e��Aid l @'Hw�
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u uuid1c C sO d d l m } | | j t | d � � j � } t d | d d � d d � S( uA Generate a UUID from the MD5 hash of a namespace UUID and a name.i ( u md5u utf-8u bytesNi u versioni ( u hashlibu md5u bytesu digestu UUID( u namespaceu nameu md5u hash( ( u) /opt/alt/python33/lib64/python3.3/uuid.pyu uuid3- s "u uuid3c s� t r5 t j d � } t | � t d t | j � � Sy, d d l } t d | j d � d d � SWnL d d l � t � f d d � t d � D� � } t d | d d � SYn Xd S( u Generate a random UUID.i u bytesi Nu versioni c 3 s | ] } � j d � Vq d S( i N( u randrange( u .0u i( u random( u) /opt/alt/python33/lib64/python3.3/uuid.pyu <genexpr>B s u uuid4.<locals>.<genexpr>(
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