diff options
Diffstat (limited to 'Lib/uuid.py')
| -rw-r--r-- | Lib/uuid.py | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/Lib/uuid.py b/Lib/uuid.py index 11e0da3..dabe22e 100644 --- a/Lib/uuid.py +++ b/Lib/uuid.py @@ -362,6 +362,10 @@ try: # hardware address. On Windows 2000 and later, UuidCreate makes a # random UUID and UuidCreateSequential gives a UUID containing the # hardware address. These routines are provided by the RPC runtime. + # NOTE: at least on Tim's WinXP Pro SP2 desktop box, while the last + # 6 bytes returned by UuidCreateSequential are fixed, they don't appear + # to bear any relationship to the MAC address of any network device + # on the box. try: lib = ctypes.windll.rpcrt4 except: @@ -389,10 +393,13 @@ def _random_getnode(): _node = None def getnode(): - """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.""" + """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. + """ global _node if _node is not None: |