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| -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 ----------------------------------------------------- |