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bpo-30296 Remove unnecessary tuples, lists, sets, and dicts (#1489)

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* Replaced list(<generator expression>) with list comprehension
* Replaced dict(<generator expression>) with dict comprehension
* Replaced set(<list literal>) with set literal
* Replaced builtin func(<list comprehension>) with func(<generator
  expression>) when supported (e.g. any(), all(), tuple(), min(), &
  max())
This commit is contained in:
Jon Dufresne 2017-05-18 07:35:54 -07:00 • committed by Raymond Hettinger
parent 906f5330b9
commit 3972628de3
19 changed files with 32 additions and 39 deletions
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4
Lib/email/headerregistry.py
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@ -369,8 +369,8 @@ class AddressHeader:
@property
def addresses(self):
if self._addresses is None:
self._addresses = tuple([address for group in self._groups
for address in group.addresses])
self._addresses = tuple(address for group in self._groups
for address in group.addresses)
return self._addresses