[Python-checkins] cpython: Use Python 3.x-style keyword only arg in Array()

[richard.oudkerk]

http://hg.python.org/cpython/rev/b31ea7995214
changeset:   77221:b31ea7995214
user:        Richard Oudkerk <shibturn at gmail.com>
date:        Tue May 29 12:01:47 2012 +0100
summary:
  Use Python 3.x-style keyword only arg in Array()

Previously a Python 2.x compatible hack was used for
multiprocessing.sharedctypes.Array().  Also the documented
signature was wrong.

files:
  Doc/library/multiprocessing.rst     |  6 +++---
  Lib/multiprocessing/__init__.py     |  8 ++++----
  Lib/multiprocessing/sharedctypes.py |  7 ++-----
  3 files changed, 9 insertions(+), 12 deletions(-)


diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -953,7 +953,7 @@
 It is possible to create shared objects using shared memory which can be
 inherited by child processes.
 
-.. function:: Value(typecode_or_type, *args[, lock])
+.. function:: Value(typecode_or_type, *args, lock=True)
 
    Return a :mod:`ctypes` object allocated from shared memory.  By default the
    return value is actually a synchronized wrapper for the object.
@@ -1045,7 +1045,7 @@
    attributes which allow one to use it to store and retrieve strings -- see
    documentation for :mod:`ctypes`.
 
-.. function:: Array(typecode_or_type, size_or_initializer, *args[, lock])
+.. function:: Array(typecode_or_type, size_or_initializer, *, lock=True)
 
    The same as :func:`RawArray` except that depending on the value of *lock* a
    process-safe synchronization wrapper may be returned instead of a raw ctypes
@@ -1060,7 +1060,7 @@
 
    Note that *lock* is a keyword-only argument.
 
-.. function:: Value(typecode_or_type, *args[, lock])
+.. function:: Value(typecode_or_type, *args, lock=True)
 
    The same as :func:`RawValue` except that depending on the value of *lock* a
    process-safe synchronization wrapper may be returned instead of a raw ctypes
diff --git a/Lib/multiprocessing/__init__.py b/Lib/multiprocessing/__init__.py
--- a/Lib/multiprocessing/__init__.py
+++ b/Lib/multiprocessing/__init__.py
@@ -228,19 +228,19 @@
     from multiprocessing.sharedctypes import RawArray
     return RawArray(typecode_or_type, size_or_initializer)
 
-def Value(typecode_or_type, *args, **kwds):
+def Value(typecode_or_type, *args, lock=True):
     '''
     Returns a synchronized shared object
     '''
     from multiprocessing.sharedctypes import Value
-    return Value(typecode_or_type, *args, **kwds)
+    return Value(typecode_or_type, *args, lock=lock)
 
-def Array(typecode_or_type, size_or_initializer, **kwds):
+def Array(typecode_or_type, size_or_initializer, *, lock=True):
     '''
     Returns a synchronized shared array
     '''
     from multiprocessing.sharedctypes import Array
-    return Array(typecode_or_type, size_or_initializer, **kwds)
+    return Array(typecode_or_type, size_or_initializer, lock=lock)
 
 #
 #
diff --git a/Lib/multiprocessing/sharedctypes.py b/Lib/multiprocessing/sharedctypes.py
--- a/Lib/multiprocessing/sharedctypes.py
+++ b/Lib/multiprocessing/sharedctypes.py
@@ -63,7 +63,7 @@
         result.__init__(*size_or_initializer)
         return result
 
-def Value(typecode_or_type, *args, lock=None):
+def Value(typecode_or_type, *args, lock=True):
     '''
     Return a synchronization wrapper for a Value
     '''
@@ -76,13 +76,10 @@
         raise AttributeError("'%r' has no method 'acquire'" % lock)
     return synchronized(obj, lock)
 
-def Array(typecode_or_type, size_or_initializer, **kwds):
+def Array(typecode_or_type, size_or_initializer, *, lock=True):
     '''
     Return a synchronization wrapper for a RawArray
     '''
-    lock = kwds.pop('lock', None)
-    if kwds:
-        raise ValueError('unrecognized keyword argument(s): %s' % list(kwds.keys()))
     obj = RawArray(typecode_or_type, size_or_initializer)
     if lock is False:
         return obj

-- 
Repository URL: http://hg.python.org/cpython