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gh-143986: Modernize Lib/uuid.py: use f-strings #143985

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gh-143986: Modernize Lib/uuid.py: use f-strings #143985

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gh-143986: Modernize Lib/uuid.py: use f-strings
tonghuaroot Jan 18, 2026
c8a0837
📜🤖 Added by blurb_it.
blurb-it[bot] Jan 18, 2026
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6 changes: 3 additions & 3 deletions Lib/uuid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -323,7 +323,7 @@ def __int__(self):
return self.int

def __repr__(self):
return '%s(%r)' % (self.__class__.__name__, str(self))
return f'{self.__class__.__name__}({str(self)!r})'

def __setattr__(self, name, value):
raise TypeError('UUID objects are immutable')
Expand Down Expand Up @@ -611,7 +611,7 @@ def _arp_getnode():
return mac

# This works on Linux, FreeBSD and NetBSD
mac = _find_mac_near_keyword('arp', '-an', [os.fsencode('(%s)' % ip_addr)],
mac = _find_mac_near_keyword('arp', '-an', [os.fsencode(f'({ip_addr})')],
lambda i: i+2)
# Return None instead of 0.
if mac:
Expand Down Expand Up @@ -718,7 +718,7 @@ def getnode():
continue
if (_node is not None) and (0 <= _node < (1 << 48)):
return _node
assert False, '_random_getnode() returned invalid value: {}'.format(_node)
assert False, f'_random_getnode() returned invalid value: {_node}'


_last_timestamp = None
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2026-01-18-07-09-38.gh-issue-143986.rt0Hht.rst
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@@ -0,0 +1 @@
Modernize the :mod:`uuid` module to use f-strings.
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