[Python-checkins] peps: PEP 511

[victor.stinner]

https://hg.python.org/peps/rev/16f60cd918e0
changeset:   6212:16f60cd918e0
user:        Victor Stinner <victor.stinner at gmail.com>
date:        Wed Jan 27 12:19:37 2016 +0100
summary:
  PEP 511

Remove changes already merged into CPython:

* code.co_lnotab: support negative line number delta
  https://bugs.python.org/issue26107
* enhance compiler to handle correctly tuple and frozenset constants
  http://bugs.python.org/issue25843
* ast.Constant:
  http://bugs.python.org/issue26146
* enhance marshal to use the empty frozenset singleton
  http://bugs.python.org/issue26146

These changes were not directly related to this PEP, but more generally
enhancements to write AST code transformers (especially AST optimizers).

files:
  pep-0511.txt |  15 ---------------
  1 files changed, 0 insertions(+), 15 deletions(-)


diff --git a/pep-0511.txt b/pep-0511.txt
--- a/pep-0511.txt
+++ b/pep-0511.txt
@@ -314,7 +314,6 @@
 * sys.implementation.optim_tag
 * sys.get_code_transformers()
 * sys.set_code_transformers(transformers)
-* ast.Constant
 * ast.PyCF_TRANSFORMED_AST
 
 
@@ -406,20 +405,6 @@
 * Add a new compiler flag ``PyCF_TRANSFORMED_AST`` to get the
   transformed AST. ``PyCF_ONLY_AST`` returns the AST before the
   transformers.
-* Add ``ast.Constant``: this type is not emited by the compiler, but
-  can be used in an AST transformer to simplify the code. It does not
-  contain line number and column offset informations on tuple or
-  frozenset items.
-* ``PyCodeObject.co_lnotab``: line number delta becomes signed to
-  support moving instructions (note: need to modify MAGIC_NUMBER in
-  importlib). Implemented in the `issue #26107
-  <https://bugs.python.org/issue26107>`_
-* Enhance the bytecode compiler to support ``tuple`` and ``frozenset``
-  constants. Currently, ``tuple`` and ``frozenset`` constants are
-  created by the peephole transformer, after the bytecode compilation.
-* ``marshal`` module: fix serialization of the empty frozenset singleton
-* update ``Tools/parser/unparse.py`` to support the new ``ast.Constant``
-  node type
 
 
 Examples

-- 
Repository URL: https://hg.python.org/peps