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| author | Guido van Rossum <guido@python.org> | 2019-04-24 18:30:17 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-04-24 18:30:17 (GMT) |
| commit | 09d434caa2c01477ea2ccc3e9b88e9faa0107c61 (patch) | |
| tree | 244e41222900904a9336db04fb320d7daba08225 | |
| parent | 43125224d6da5febb34101ebfd36536d791d68cd (diff) | |
| download | cpython-09d434caa2c01477ea2ccc3e9b88e9faa0107c61.zip cpython-09d434caa2c01477ea2ccc3e9b88e9faa0107c61.tar.gz cpython-09d434caa2c01477ea2ccc3e9b88e9faa0107c61.tar.bz2 | |
Issue 35224: Add PEP 572 (assignment expressions) to What's New (#12941)
This is meant as a stub, during the PyCon sprints we can iterate.
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index bd7ad3f..ae8163a 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -67,6 +67,22 @@ Summary -- Release highlights New Features ============ +Assignment expressions +---------------------- + +There is new syntax (the "walrus operator", ``:=``) to assign values +to variables as part of an expression. Example:: + + if (n := len(a)) > 10: + print(f"List is too long ({n} elements, expected <= 10)") + +See :pep:`572` for a full description. + +(Contributed by Emily Morehouse in :issue:`35224`.) + +.. TODO: Emily will sprint on docs at PyCon US 2019. + + Parallel filesystem cache for compiled bytecode files ----------------------------------------------------- |