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bpo-32012: Disallow trailing comma after genexpr without parenthesis. #4382

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Merged
serhiy-storchaka merged 8 commits into from
Nov 15, 2017
Merged

bpo-32012: Disallow trailing comma after genexpr without parenthesis. #4382

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db4aafc
bpo-32012: Disallow trailing comma after genexpr without parenthesis.
serhiy-storchaka Nov 12, 2017
3d8c9bc
Fix grammar of a news entry.
serhiy-storchaka Nov 13, 2017
06b0abd
Disallow other improper syntax with generator expressions.
serhiy-storchaka Nov 13, 2017
355fea6
Use booleans.
serhiy-storchaka Nov 14, 2017
8d81722
Merge branch 'master' into gen-expr-argument-and-trailing-comma
serhiy-storchaka Nov 14, 2017
19a8013
06b0abd Revert "Use booleans."
serhiy-storchaka Nov 14, 2017
691dfbf
Revert "Disallow other improper syntax with generator expressions."
serhiy-storchaka Nov 14, 2017
74439e4
Minor documentation fixes.
serhiy-storchaka Nov 14, 2017
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Minor documentation fixes.
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@serhiy-storchaka
serhiy-storchaka committed Nov 14, 2017
commit 74439e49394b7e89e9ae3aab561d0f3f6a5ade0c
2 changes: 1 addition & 1 deletion Doc/whatsnew/3.7.rst
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Expand Up @@ -641,7 +641,7 @@ Changes in Python behavior
Python 3.7 now correctly raises a :exc:`SyntaxError`, as a generator
expression always needs to be directly inside a set of parentheses
and cannot have a comma on either side.
(Contributed by Serhiy Storchaka in :issue:`XXXXX`.)
(Contributed by Serhiy Storchaka in :issue:`32012`.)


Changes in the Python API
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8 changes: 4 additions & 4 deletions Misc/NEWS.d/next/Core and Builtins/2017-11-13-00-37-11.bpo-32012.Kprjqe.rst
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@@ -1,4 +1,4 @@
SyntaxError is now raised when a generator expression without parenthesis is
passed as an argument but followed by a trailing comma. A generator expression
always needs to be directly inside a set of parentheses and cannot have a
comma on either side.
SyntaxError is now correctly raised when a generator expression without
parenthesis is passed as an argument, but followed by a trailing comma.
A generator expression always needs to be directly inside a set of parentheses
and cannot have a comma on either side.