Update docs for 3.7.0a4
This commit is contained in:
Ned Deily
parent
ca0c5f2656
commit
3b43bfaae6
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@ -1,5 +1,5 @@
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# -*- coding: utf-8 -*-
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# Autogenerated by Sphinx on Tue Dec 5 03:14:53 2017
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# Autogenerated by Sphinx on Mon Jan 8 21:23:03 2018
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topics = {'assert': 'The "assert" statement\n'
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'**********************\n'
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'\n'
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@ -571,6 +571,65 @@ topics = {'assert': 'The "assert" statement\n'
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' sorts it.\n'
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'\n'
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'\n'
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'Customizing module attribute access\n'
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'===================================\n'
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'\n'
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'Special names "__getattr__" and "__dir__" can be also '
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'used to\n'
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'customize access to module attributes. The "__getattr__" '
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'function at\n'
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'the module level should accept one argument which is the '
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'name of an\n'
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'attribute and return the computed value or raise an '
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'"AttributeError".\n'
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'If an attribute is not found on a module object through '
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'the normal\n'
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'lookup, i.e. "object.__getattribute__()", then '
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'"__getattr__" is\n'
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'searched in the module "__dict__" before raising an '
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'"AttributeError".\n'
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'If found, it is called with the attribute name and the '
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'result is\n'
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'returned.\n'
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'\n'
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'The "__dir__" function should accept no arguments, and '
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'return a list\n'
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'of strings that represents the names accessible on '
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'module. If present,\n'
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'this function overrides the standard "dir()" search on a '
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'module.\n'
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'\n'
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'For a more fine grained customization of the module '
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'behavior (setting\n'
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'attributes, properties, etc.), one can set the '
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'"__class__" attribute\n'
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'of a module object to a subclass of "types.ModuleType". '
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'For example:\n'
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'\n'
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' import sys\n'
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' from types import ModuleType\n'
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'\n'
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' class VerboseModule(ModuleType):\n'
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' def __repr__(self):\n'
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" return f'Verbose {self.__name__}'\n"
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'\n'
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' def __setattr__(self, attr, value):\n'
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" print(f'Setting {attr}...')\n"
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' setattr(self, attr, value)\n'
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'\n'
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' sys.modules[__name__].__class__ = VerboseModule\n'
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'\n'
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'Note: Defining module "__getattr__" and setting module '
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'"__class__"\n'
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' only affect lookups made using the attribute access '
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'syntax --\n'
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' directly accessing the module globals (whether by code '
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'within the\n'
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" module, or via a reference to the module's globals "
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'dictionary) is\n'
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' unaffected.\n'
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'\n'
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'\n'
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'Implementing Descriptors\n'
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'========================\n'
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'\n'
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@ -2905,63 +2964,52 @@ topics = {'assert': 'The "assert" statement\n'
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'\n'
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' Called when the instance is about to be destroyed. This '
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'is also\n'
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' called a destructor. If a base class has a "__del__()" '
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'method, the\n'
|
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' derived class\'s "__del__()" method, if any, must '
|
||||
'explicitly call it\n'
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' to ensure proper deletion of the base class part of the '
|
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'instance.\n'
|
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' Note that it is possible (though not recommended!) for '
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||||
' called a finalizer or (improperly) a destructor. If a '
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'base class\n'
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' has a "__del__()" method, the derived class\'s '
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'"__del__()" method,\n'
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' if any, must explicitly call it to ensure proper '
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'deletion of the\n'
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' base class part of the instance.\n'
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'\n'
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' It is possible (though not recommended!) for the '
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'"__del__()" method\n'
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' to postpone destruction of the instance by creating a '
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'new reference\n'
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' to it. This is called object *resurrection*. It is\n'
|
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' implementation-dependent whether "__del__()" is called a '
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'second\n'
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' time when a resurrected object is about to be destroyed; '
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'the\n'
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' "__del__()" method to postpone destruction of the '
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'instance by\n'
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' creating a new reference to it. It may then be called '
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'at a later\n'
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' time when this new reference is deleted. It is not '
|
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'guaranteed that\n'
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' "__del__()" methods are called for objects that still '
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'exist when\n'
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' the interpreter exits.\n'
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' current *CPython* implementation only calls it once.\n'
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'\n'
|
||||
' It is not guaranteed that "__del__()" methods are called '
|
||||
'for\n'
|
||||
' objects that still exist when the interpreter exits.\n'
|
||||
'\n'
|
||||
' Note: "del x" doesn\'t directly call "x.__del__()" --- '
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||||
'the former\n'
|
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' decrements the reference count for "x" by one, and the '
|
||||
'latter is\n'
|
||||
' only called when "x"\'s reference count reaches zero. '
|
||||
'Some common\n'
|
||||
' situations that may prevent the reference count of an '
|
||||
'object from\n'
|
||||
' going to zero include: circular references between '
|
||||
'objects (e.g.,\n'
|
||||
' a doubly-linked list or a tree data structure with '
|
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'parent and\n'
|
||||
' child pointers); a reference to the object on the '
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'stack frame of\n'
|
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' a function that caught an exception (the traceback '
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'stored in\n'
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||||
' "sys.exc_info()[2]" keeps the stack frame alive); or a '
|
||||
' only called when "x"\'s reference count reaches zero.\n'
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||||
'\n'
|
||||
' **CPython implementation detail:** It is possible for a '
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||||
'reference\n'
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||||
' to the object on the stack frame that raised an '
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'unhandled\n'
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||||
' exception in interactive mode (the traceback stored '
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'in\n'
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' "sys.last_traceback" keeps the stack frame alive). '
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'The first\n'
|
||||
' situation can only be remedied by explicitly breaking '
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||||
'the cycles;\n'
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' the second can be resolved by freeing the reference to '
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||||
'the\n'
|
||||
' traceback object when it is no longer useful, and the '
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'third can\n'
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' be resolved by storing "None" in "sys.last_traceback". '
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'Circular\n'
|
||||
' references which are garbage are detected and cleaned '
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||||
'up when the\n'
|
||||
" cyclic garbage collector is enabled (it's on by "
|
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'default). Refer\n'
|
||||
' to the documentation for the "gc" module for more '
|
||||
'information\n'
|
||||
' about this topic.\n'
|
||||
' cycle to prevent the reference count of an object from '
|
||||
'going to\n'
|
||||
' zero. In this case, the cycle will be later detected '
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'and deleted\n'
|
||||
' by the *cyclic garbage collector*. A common cause of '
|
||||
'reference\n'
|
||||
' cycles is when an exception has been caught in a local '
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||||
'variable.\n'
|
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" The frame's locals then reference the exception, which "
|
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'references\n'
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' its own traceback, which references the locals of all '
|
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'frames caught\n'
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' in the traceback.\n'
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'\n'
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' See also: Documentation for the "gc" module.\n'
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'\n'
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' Warning: Due to the precarious circumstances under '
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'which\n'
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|
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@ -2969,29 +3017,35 @@ topics = {'assert': 'The "assert" statement\n'
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|||
'during\n'
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' their execution are ignored, and a warning is printed '
|
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'to\n'
|
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' "sys.stderr" instead. Also, when "__del__()" is '
|
||||
'invoked in\n'
|
||||
' response to a module being deleted (e.g., when '
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'execution of the\n'
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' program is done), other globals referenced by the '
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' "sys.stderr" instead. In particular:\n'
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'\n'
|
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' * "__del__()" can be invoked when arbitrary code is '
|
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'being\n'
|
||||
' executed, including from any arbitrary thread. If '
|
||||
'"__del__()"\n'
|
||||
' method may already have been deleted or in the process '
|
||||
'of being\n'
|
||||
' torn down (e.g. the import machinery shutting down). '
|
||||
'For this\n'
|
||||
' reason, "__del__()" methods should do the absolute '
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'minimum needed\n'
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' to maintain external invariants. Starting with '
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'version 1.5,\n'
|
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' Python guarantees that globals whose name begins with '
|
||||
'a single\n'
|
||||
' underscore are deleted from their module before other '
|
||||
'globals are\n'
|
||||
' deleted; if no other references to such globals exist, '
|
||||
'this may\n'
|
||||
' help in assuring that imported modules are still '
|
||||
'available at the\n'
|
||||
' time when the "__del__()" method is called.\n'
|
||||
' needs to take a lock or invoke any other blocking '
|
||||
'resource, it\n'
|
||||
' may deadlock as the resource may already be taken by '
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'the code\n'
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||||
' that gets interrupted to execute "__del__()".\n'
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'\n'
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||||
' * "__del__()" can be executed during interpreter '
|
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'shutdown. As\n'
|
||||
' a consequence, the global variables it needs to '
|
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'access\n'
|
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' (including other modules) may already have been '
|
||||
'deleted or set\n'
|
||||
' to "None". Python guarantees that globals whose name '
|
||||
'begins\n'
|
||||
' with a single underscore are deleted from their '
|
||||
'module before\n'
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||||
' other globals are deleted; if no other references to '
|
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'such\n'
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' globals exist, this may help in assuring that '
|
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'imported modules\n'
|
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' are still available at the time when the "__del__()" '
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'method is\n'
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' called.\n'
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'\n'
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'object.__repr__(self)\n'
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'\n'
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|
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@ -3346,6 +3400,13 @@ topics = {'assert': 'The "assert" statement\n'
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'executes\n'
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'commands as if given in a ".pdbrc" file, see Debugger Commands.\n'
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'\n'
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'New in version 3.7: "pdb.py" now accepts a "-m" option that '
|
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'execute\n'
|
||||
'modules similar to the way "python3 -m" does. As with a script, '
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||||
'the\n'
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'debugger will pause execution just before the first line of the\n'
|
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'module.\n'
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'\n'
|
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'The typical usage to break into the debugger from a running '
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'program is\n'
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'to insert\n'
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|
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@ -7563,91 +7624,87 @@ topics = {'assert': 'The "assert" statement\n'
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'\n'
|
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' Called when the instance is about to be destroyed. This '
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'is also\n'
|
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' called a destructor. If a base class has a "__del__()" '
|
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'method, the\n'
|
||||
' derived class\'s "__del__()" method, if any, must '
|
||||
'explicitly call it\n'
|
||||
' to ensure proper deletion of the base class part of the '
|
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'instance.\n'
|
||||
' Note that it is possible (though not recommended!) for '
|
||||
' called a finalizer or (improperly) a destructor. If a '
|
||||
'base class\n'
|
||||
' has a "__del__()" method, the derived class\'s '
|
||||
'"__del__()" method,\n'
|
||||
' if any, must explicitly call it to ensure proper deletion '
|
||||
'of the\n'
|
||||
' base class part of the instance.\n'
|
||||
'\n'
|
||||
' It is possible (though not recommended!) for the '
|
||||
'"__del__()" method\n'
|
||||
' to postpone destruction of the instance by creating a new '
|
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'reference\n'
|
||||
' to it. This is called object *resurrection*. It is\n'
|
||||
' implementation-dependent whether "__del__()" is called a '
|
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'second\n'
|
||||
' time when a resurrected object is about to be destroyed; '
|
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'the\n'
|
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' "__del__()" method to postpone destruction of the '
|
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'instance by\n'
|
||||
' creating a new reference to it. It may then be called at '
|
||||
'a later\n'
|
||||
' time when this new reference is deleted. It is not '
|
||||
'guaranteed that\n'
|
||||
' "__del__()" methods are called for objects that still '
|
||||
'exist when\n'
|
||||
' the interpreter exits.\n'
|
||||
' current *CPython* implementation only calls it once.\n'
|
||||
'\n'
|
||||
' It is not guaranteed that "__del__()" methods are called '
|
||||
'for\n'
|
||||
' objects that still exist when the interpreter exits.\n'
|
||||
'\n'
|
||||
' Note: "del x" doesn\'t directly call "x.__del__()" --- '
|
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'the former\n'
|
||||
' decrements the reference count for "x" by one, and the '
|
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'latter is\n'
|
||||
' only called when "x"\'s reference count reaches zero. '
|
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'Some common\n'
|
||||
' situations that may prevent the reference count of an '
|
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'object from\n'
|
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' going to zero include: circular references between '
|
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'objects (e.g.,\n'
|
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' a doubly-linked list or a tree data structure with '
|
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'parent and\n'
|
||||
' child pointers); a reference to the object on the stack '
|
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'frame of\n'
|
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' a function that caught an exception (the traceback '
|
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'stored in\n'
|
||||
' "sys.exc_info()[2]" keeps the stack frame alive); or a '
|
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' only called when "x"\'s reference count reaches zero.\n'
|
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'\n'
|
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' **CPython implementation detail:** It is possible for a '
|
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'reference\n'
|
||||
' to the object on the stack frame that raised an '
|
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'unhandled\n'
|
||||
' exception in interactive mode (the traceback stored in\n'
|
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' "sys.last_traceback" keeps the stack frame alive). The '
|
||||
'first\n'
|
||||
' situation can only be remedied by explicitly breaking '
|
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'the cycles;\n'
|
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' the second can be resolved by freeing the reference to '
|
||||
'the\n'
|
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' traceback object when it is no longer useful, and the '
|
||||
'third can\n'
|
||||
' be resolved by storing "None" in "sys.last_traceback". '
|
||||
'Circular\n'
|
||||
' references which are garbage are detected and cleaned '
|
||||
'up when the\n'
|
||||
" cyclic garbage collector is enabled (it's on by "
|
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'default). Refer\n'
|
||||
' to the documentation for the "gc" module for more '
|
||||
'information\n'
|
||||
' about this topic.\n'
|
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' cycle to prevent the reference count of an object from '
|
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'going to\n'
|
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' zero. In this case, the cycle will be later detected and '
|
||||
'deleted\n'
|
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' by the *cyclic garbage collector*. A common cause of '
|
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'reference\n'
|
||||
' cycles is when an exception has been caught in a local '
|
||||
'variable.\n'
|
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" The frame's locals then reference the exception, which "
|
||||
'references\n'
|
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' its own traceback, which references the locals of all '
|
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'frames caught\n'
|
||||
' in the traceback.\n'
|
||||
'\n'
|
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' See also: Documentation for the "gc" module.\n'
|
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'\n'
|
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' Warning: Due to the precarious circumstances under which\n'
|
||||
' "__del__()" methods are invoked, exceptions that occur '
|
||||
'during\n'
|
||||
' their execution are ignored, and a warning is printed '
|
||||
'to\n'
|
||||
' "sys.stderr" instead. Also, when "__del__()" is invoked '
|
||||
'in\n'
|
||||
' response to a module being deleted (e.g., when '
|
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'execution of the\n'
|
||||
' program is done), other globals referenced by the '
|
||||
' "sys.stderr" instead. In particular:\n'
|
||||
'\n'
|
||||
' * "__del__()" can be invoked when arbitrary code is '
|
||||
'being\n'
|
||||
' executed, including from any arbitrary thread. If '
|
||||
'"__del__()"\n'
|
||||
' method may already have been deleted or in the process '
|
||||
'of being\n'
|
||||
' torn down (e.g. the import machinery shutting down). '
|
||||
'For this\n'
|
||||
' reason, "__del__()" methods should do the absolute '
|
||||
'minimum needed\n'
|
||||
' to maintain external invariants. Starting with version '
|
||||
'1.5,\n'
|
||||
' Python guarantees that globals whose name begins with a '
|
||||
'single\n'
|
||||
' underscore are deleted from their module before other '
|
||||
'globals are\n'
|
||||
' deleted; if no other references to such globals exist, '
|
||||
'this may\n'
|
||||
' help in assuring that imported modules are still '
|
||||
'available at the\n'
|
||||
' time when the "__del__()" method is called.\n'
|
||||
' needs to take a lock or invoke any other blocking '
|
||||
'resource, it\n'
|
||||
' may deadlock as the resource may already be taken by '
|
||||
'the code\n'
|
||||
' that gets interrupted to execute "__del__()".\n'
|
||||
'\n'
|
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' * "__del__()" can be executed during interpreter '
|
||||
'shutdown. As\n'
|
||||
' a consequence, the global variables it needs to '
|
||||
'access\n'
|
||||
' (including other modules) may already have been '
|
||||
'deleted or set\n'
|
||||
' to "None". Python guarantees that globals whose name '
|
||||
'begins\n'
|
||||
' with a single underscore are deleted from their '
|
||||
'module before\n'
|
||||
' other globals are deleted; if no other references to '
|
||||
'such\n'
|
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' globals exist, this may help in assuring that '
|
||||
'imported modules\n'
|
||||
' are still available at the time when the "__del__()" '
|
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'method is\n'
|
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' called.\n'
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||||
'\n'
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||||
'object.__repr__(self)\n'
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||||
'\n'
|
||||
|
|
@ -8031,6 +8088,65 @@ topics = {'assert': 'The "assert" statement\n'
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|||
' sorts it.\n'
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||||
'\n'
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||||
'\n'
|
||||
'Customizing module attribute access\n'
|
||||
'-----------------------------------\n'
|
||||
'\n'
|
||||
'Special names "__getattr__" and "__dir__" can be also used '
|
||||
'to\n'
|
||||
'customize access to module attributes. The "__getattr__" '
|
||||
'function at\n'
|
||||
'the module level should accept one argument which is the '
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||||
'name of an\n'
|
||||
'attribute and return the computed value or raise an '
|
||||
'"AttributeError".\n'
|
||||
'If an attribute is not found on a module object through the '
|
||||
'normal\n'
|
||||
'lookup, i.e. "object.__getattribute__()", then "__getattr__" '
|
||||
'is\n'
|
||||
'searched in the module "__dict__" before raising an '
|
||||
'"AttributeError".\n'
|
||||
'If found, it is called with the attribute name and the '
|
||||
'result is\n'
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||||
'returned.\n'
|
||||
'\n'
|
||||
'The "__dir__" function should accept no arguments, and '
|
||||
'return a list\n'
|
||||
'of strings that represents the names accessible on module. '
|
||||
'If present,\n'
|
||||
'this function overrides the standard "dir()" search on a '
|
||||
'module.\n'
|
||||
'\n'
|
||||
'For a more fine grained customization of the module behavior '
|
||||
'(setting\n'
|
||||
'attributes, properties, etc.), one can set the "__class__" '
|
||||
'attribute\n'
|
||||
'of a module object to a subclass of "types.ModuleType". For '
|
||||
'example:\n'
|
||||
'\n'
|
||||
' import sys\n'
|
||||
' from types import ModuleType\n'
|
||||
'\n'
|
||||
' class VerboseModule(ModuleType):\n'
|
||||
' def __repr__(self):\n'
|
||||
" return f'Verbose {self.__name__}'\n"
|
||||
'\n'
|
||||
' def __setattr__(self, attr, value):\n'
|
||||
" print(f'Setting {attr}...')\n"
|
||||
' setattr(self, attr, value)\n'
|
||||
'\n'
|
||||
' sys.modules[__name__].__class__ = VerboseModule\n'
|
||||
'\n'
|
||||
'Note: Defining module "__getattr__" and setting module '
|
||||
'"__class__"\n'
|
||||
' only affect lookups made using the attribute access syntax '
|
||||
'--\n'
|
||||
' directly accessing the module globals (whether by code '
|
||||
'within the\n'
|
||||
" module, or via a reference to the module's globals "
|
||||
'dictionary) is\n'
|
||||
' unaffected.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Implementing Descriptors\n'
|
||||
'------------------------\n'
|
||||
'\n'
|
||||
|
|
@ -12211,18 +12327,18 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
' sequence concatenation or repetition.\n'
|
||||
'\n'
|
||||
'8. "index" raises "ValueError" when *x* is not found in *s*. '
|
||||
'When\n'
|
||||
' supported, the additional arguments to the index method '
|
||||
'allow\n'
|
||||
' efficient searching of subsections of the sequence. Passing '
|
||||
'the\n'
|
||||
' extra arguments is roughly equivalent to using '
|
||||
'"s[i:j].index(x)",\n'
|
||||
' only without copying any data and with the returned index '
|
||||
'being\n'
|
||||
' relative to the start of the sequence rather than the start '
|
||||
'of the\n'
|
||||
' slice.\n'
|
||||
'Not\n'
|
||||
' all implementations support passing the additional arguments '
|
||||
'*i*\n'
|
||||
' and *j*. These arguments allow efficient searching of '
|
||||
'subsections\n'
|
||||
' of the sequence. Passing the extra arguments is roughly '
|
||||
'equivalent\n'
|
||||
' to using "s[i:j].index(x)", only without copying any data and '
|
||||
'with\n'
|
||||
' the returned index being relative to the start of the '
|
||||
'sequence\n'
|
||||
' rather than the start of the slice.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Immutable Sequence Types\n'
|
||||
|
|
|
|||
|
|
@ -0,0 +1,847 @@
|
|||
.. bpo: 31975
|
||||
.. date: 2018-01-05-20-54-27
|
||||
.. nonce: AmftlU
|
||||
.. release date: 2018-01-08
|
||||
.. section: Core and Builtins
|
||||
|
||||
The default warning filter list now starts with a
|
||||
"default::DeprecationWarning:__main__" entry, so deprecation warnings are
|
||||
once again shown by default in single-file scripts and at the interactive
|
||||
prompt.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32226
|
||||
.. date: 2018-01-04-15-06-15
|
||||
.. nonce: 7cAvRG
|
||||
.. section: Core and Builtins
|
||||
|
||||
``__class_getitem__`` is now an automatic class method.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32399
|
||||
.. date: 2017-12-22-13-38-17
|
||||
.. nonce: wlH12z
|
||||
.. section: Core and Builtins
|
||||
|
||||
Add AIX uuid library support for RFC4122 using uuid_create() in libc.a
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32390
|
||||
.. date: 2017-12-22-13-28-07
|
||||
.. nonce: QPj083
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix the compilation failure on AIX after the f_fsid field has been added to
|
||||
the object returned by os.statvfs() (issue #32143). Original patch by
|
||||
Michael Felt.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32379
|
||||
.. date: 2017-12-19-21-14-41
|
||||
.. nonce: B7mOmI
|
||||
.. section: Core and Builtins
|
||||
|
||||
Make MRO computation faster when a class inherits from a single base.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32259
|
||||
.. date: 2017-12-16-14-30-21
|
||||
.. nonce: GoOJiX
|
||||
.. section: Core and Builtins
|
||||
|
||||
The error message of a TypeError raised when unpack non-iterable is now more
|
||||
specific.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 27169
|
||||
.. date: 2017-12-15-11-50-06
|
||||
.. nonce: VO84fQ
|
||||
.. section: Core and Builtins
|
||||
|
||||
The ``__debug__`` constant is now optimized out at compile time. This fixes
|
||||
also bpo-22091.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32329
|
||||
.. date: 2017-12-15-00-13-04
|
||||
.. nonce: q47IN2
|
||||
.. section: Core and Builtins
|
||||
|
||||
The :option:`-R` option now turns on hash randomization when the
|
||||
:envvar:`PYTHONHASHSEED` environment variable is set to ``0``. Previously,
|
||||
the option was ignored. Moreover, ``sys.flags.hash_randomization`` is now
|
||||
properly set to 0 when hash randomization is turned off by
|
||||
``PYTHONHASHSEED=0``.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 30416
|
||||
.. date: 2017-12-14-11-48-19
|
||||
.. nonce: hlHo_9
|
||||
.. section: Core and Builtins
|
||||
|
||||
The optimizer is now protected from spending much time doing complex
|
||||
calculations and consuming much memory for creating large constants in
|
||||
constant folding. Increased limits for constants that can be produced in
|
||||
constant folding.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32282
|
||||
.. date: 2017-12-12-14-02-28
|
||||
.. nonce: xFVMTn
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
|
||||
on Windows.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 30579
|
||||
.. date: 2017-12-11-01-52-42
|
||||
.. nonce: X6cEzf
|
||||
.. section: Core and Builtins
|
||||
|
||||
Implement TracebackType.__new__ to allow Python-level creation of traceback
|
||||
objects, and make TracebackType.tb_next mutable.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32260
|
||||
.. date: 2017-12-09-11-03-51
|
||||
.. nonce: 1DAO-p
|
||||
.. section: Core and Builtins
|
||||
|
||||
Don't byte swap the input keys to the SipHash algorithm on big-endian
|
||||
platforms. This should ensure siphash gives consistent results across
|
||||
platforms.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31506
|
||||
.. date: 2017-12-07-23-44-29
|
||||
.. nonce: j1U2fU
|
||||
.. section: Core and Builtins
|
||||
|
||||
Improve the error message logic for object.__new__ and object.__init__.
|
||||
Patch by Sanyam Khurana.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 20361
|
||||
.. date: 2017-12-07-17-22-30
|
||||
.. nonce: zQUmbi
|
||||
.. section: Core and Builtins
|
||||
|
||||
``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
|
||||
``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that they
|
||||
take precedence over any other warning filters configured via the ``-W``
|
||||
option or the ``PYTHONWARNINGS`` environment variable.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32230
|
||||
.. date: 2017-12-06-20-18-34
|
||||
.. nonce: PgGQaB
|
||||
.. section: Core and Builtins
|
||||
|
||||
`-X dev` now injects a ``'default'`` entry into sys.warnoptions, ensuring
|
||||
that it behaves identically to actually passing ``-Wdefault`` at the command
|
||||
line.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 29240
|
||||
.. date: 2017-12-05-23-10-58
|
||||
.. nonce: qpJP5l
|
||||
.. section: Core and Builtins
|
||||
|
||||
Add a new UTF-8 mode: implementation of the :pep:`540`.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32226
|
||||
.. date: 2017-12-05-21-42-58
|
||||
.. nonce: G8fqb6
|
||||
.. section: Core and Builtins
|
||||
|
||||
PEP 560: Add support for __mro_entries__ and __class_getitem__. Implemented
|
||||
by Ivan Levkivskyi.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32225
|
||||
.. date: 2017-12-05-21-33-47
|
||||
.. nonce: ucKjvw
|
||||
.. section: Core and Builtins
|
||||
|
||||
PEP 562: Add support for module ``__getattr__`` and ``__dir__``. Implemented
|
||||
by Ivan Levkivskyi.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31901
|
||||
.. date: 2017-11-28-15-04-14
|
||||
.. nonce: mDeCLK
|
||||
.. section: Core and Builtins
|
||||
|
||||
The `atexit` module now has its callback stored per interpreter.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31650
|
||||
.. date: 2017-11-26-14-38-44
|
||||
.. nonce: JWf_Im
|
||||
.. section: Core and Builtins
|
||||
|
||||
Implement PEP 552 (Deterministic pycs). Python now supports invalidating
|
||||
bytecode cache files bashed on a source content hash rather than source
|
||||
last-modified time.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 29469
|
||||
.. date: 2017-07-26-00-20-15
|
||||
.. nonce: potmyI
|
||||
.. section: Core and Builtins
|
||||
|
||||
Move constant folding from bytecode layer to AST layer. Original patch by
|
||||
Eugene Toder.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32506
|
||||
.. date: 2018-01-07-11-32-42
|
||||
.. nonce: MaT-zU
|
||||
.. section: Library
|
||||
|
||||
Now that dict is defined as keeping insertion order, drop OrderedDict and
|
||||
just use plain dict.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32279
|
||||
.. date: 2018-01-06-16-50-11
|
||||
.. nonce: 1xOpU8
|
||||
.. section: Library
|
||||
|
||||
Add params to dataclasses.make_dataclasses(): init, repr, eq, order, hash,
|
||||
and frozen. Pass them through to dataclass().
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32278
|
||||
.. date: 2018-01-06-15-15-34
|
||||
.. nonce: bGnGc0
|
||||
.. section: Library
|
||||
|
||||
Make type information optional on dataclasses.make_dataclass(). If omitted,
|
||||
the string 'typing.Any' is used.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32499
|
||||
.. date: 2018-01-06-10-54-16
|
||||
.. nonce: koyY-4
|
||||
.. section: Library
|
||||
|
||||
Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass
|
||||
or an instance of one.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32468
|
||||
.. date: 2017-12-31-20-32-58
|
||||
.. nonce: YBs__0
|
||||
.. section: Library
|
||||
|
||||
Improve frame repr() to mention filename, code name and current line number.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 23749
|
||||
.. date: 2017-12-29-00-44-42
|
||||
.. nonce: QL1Cxd
|
||||
.. section: Library
|
||||
|
||||
asyncio: Implement loop.start_tls()
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32441
|
||||
.. date: 2017-12-28-21-30-40
|
||||
.. nonce: LqlboJ
|
||||
.. section: Library
|
||||
|
||||
Return the new file descriptor (i.e., the second argument) from ``os.dup2``.
|
||||
Previously, ``None`` was always returned.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32422
|
||||
.. date: 2017-12-25-20-22-47
|
||||
.. nonce: 5H3Wq2
|
||||
.. section: Library
|
||||
|
||||
``functools.lru_cache`` uses less memory (3 words for each cached key) and
|
||||
takes about 1/3 time for cyclic GC.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31721
|
||||
.. date: 2017-12-25-11-09-46
|
||||
.. nonce: 5gM972
|
||||
.. section: Library
|
||||
|
||||
Prevent Python crash from happening when Future._log_traceback is set to
|
||||
True manually. Now it can only be set to False, or a ValueError is raised.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32415
|
||||
.. date: 2017-12-23-12-45-00
|
||||
.. nonce: YufXTU
|
||||
.. section: Library
|
||||
|
||||
asyncio: Add Task.get_loop() and Future.get_loop()
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 26133
|
||||
.. date: 2017-12-21-11-08-42
|
||||
.. nonce: mt81QV
|
||||
.. section: Library
|
||||
|
||||
Don't unsubscribe signals in asyncio UNIX event loop on interpreter
|
||||
shutdown.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32363
|
||||
.. date: 2017-12-19-00-37-28
|
||||
.. nonce: YTeGU0
|
||||
.. section: Library
|
||||
|
||||
Make asyncio.Task.set_exception() and set_result() raise
|
||||
NotImplementedError. Task._step() and Future.__await__() raise proper
|
||||
exceptions when they are in an invalid state, instead of raising an
|
||||
AssertionError.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32357
|
||||
.. date: 2017-12-18-00-36-41
|
||||
.. nonce: t1F3sn
|
||||
.. section: Library
|
||||
|
||||
Optimize asyncio.iscoroutine() and loop.create_task() for non-native
|
||||
coroutines (e.g. async/await compiled with Cython).
|
||||
|
||||
'loop.create_task(python_coroutine)' used to be 20% faster than
|
||||
'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32356
|
||||
.. date: 2017-12-17-22-50-51
|
||||
.. nonce: roZJpA
|
||||
.. section: Library
|
||||
|
||||
asyncio.transport.resume_reading() and pause_reading() are now idempotent.
|
||||
New transport.is_reading() method is added.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32355
|
||||
.. date: 2017-12-17-21-42-24
|
||||
.. nonce: tbaTWA
|
||||
.. section: Library
|
||||
|
||||
Optimize asyncio.gather(); now up to 15% faster.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32351
|
||||
.. date: 2017-12-17-14-23-23
|
||||
.. nonce: 95fh2K
|
||||
.. section: Library
|
||||
|
||||
Use fastpath in asyncio.sleep if delay<0 (2x boost)
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32348
|
||||
.. date: 2017-12-16-18-50-57
|
||||
.. nonce: 5j__he
|
||||
.. section: Library
|
||||
|
||||
Optimize asyncio.Future schedule/add/remove callback. The optimization
|
||||
shows 3-6% performance improvements of async/await code.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32331
|
||||
.. date: 2017-12-15-23-48-43
|
||||
.. nonce: fIg1Uc
|
||||
.. section: Library
|
||||
|
||||
Fix socket.settimeout() and socket.setblocking() to keep socket.type as is.
|
||||
Fix socket.socket() constructor to reset any bit flags applied to socket's
|
||||
type. This change only affects OSes that have SOCK_NONBLOCK and/or
|
||||
SOCK_CLOEXEC.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32248
|
||||
.. date: 2017-12-15-15-34-12
|
||||
.. nonce: zmO8G2
|
||||
.. section: Library
|
||||
|
||||
Add :class:`importlib.abc.ResourceReader` as an ABC for loaders to provide a
|
||||
unified API for reading resources contained within packages. Also add
|
||||
:mod:`importlib.resources` as the port of ``importlib_resources``.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32311
|
||||
.. date: 2017-12-14-17-28-54
|
||||
.. nonce: DL5Ytn
|
||||
.. section: Library
|
||||
|
||||
Implement asyncio.create_task(coro) shortcut
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32327
|
||||
.. date: 2017-12-14-16-00-25
|
||||
.. nonce: bbkSxA
|
||||
.. section: Library
|
||||
|
||||
Convert asyncio functions that were documented as coroutines to coroutines.
|
||||
Affected functions: loop.sock_sendall, loop.sock_recv, loop.sock_accept,
|
||||
loop.run_in_executor, loop.getaddrinfo, loop.getnameinfo.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32323
|
||||
.. date: 2017-12-14-10-10-10
|
||||
.. nonce: ideco
|
||||
.. section: Library
|
||||
|
||||
:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower
|
||||
case for scoped IPv6 addresses in hostnames now.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32302
|
||||
.. date: 2017-12-13-22-38-08
|
||||
.. nonce: othtTr
|
||||
.. section: Library
|
||||
|
||||
Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
|
||||
v140.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 29711
|
||||
.. date: 2017-12-13-22-10-36
|
||||
.. nonce: hJjghA
|
||||
.. section: Library
|
||||
|
||||
Fix ``stop_serving`` in asyncio proactor loop kill all listening servers
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32308
|
||||
.. date: 2017-12-13-20-31-30
|
||||
.. nonce: CUbsb2
|
||||
.. section: Library
|
||||
|
||||
:func:`re.sub()` now replaces empty matches adjacent to a previous non-empty
|
||||
match.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 29970
|
||||
.. date: 2017-12-13-19-02-38
|
||||
.. nonce: uxVOpk
|
||||
.. section: Library
|
||||
|
||||
Abort asyncio SSLProtocol connection if handshake not complete within 10s
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32314
|
||||
.. date: 2017-12-13-16-47-38
|
||||
.. nonce: W4_U2j
|
||||
.. section: Library
|
||||
|
||||
Implement asyncio.run().
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 17852
|
||||
.. date: 2017-12-13-00-00-37
|
||||
.. nonce: Q8BP8N
|
||||
.. section: Library
|
||||
|
||||
Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32296
|
||||
.. date: 2017-12-12-18-01-01
|
||||
.. nonce: bwscHz
|
||||
.. section: Library
|
||||
|
||||
Implement asyncio._get_running_loop() and get_event_loop() in C. This makes
|
||||
them 4x faster.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32250
|
||||
.. date: 2017-12-12-16-58-20
|
||||
.. nonce: UljTa0
|
||||
.. section: Library
|
||||
|
||||
Implement ``asyncio.current_task()`` and ``asyncio.all_tasks()``. Add
|
||||
helpers intended to be used by alternative task implementations:
|
||||
``asyncio._register_task``, ``asyncio._enter_task``, ``asyncio._leave_task``
|
||||
and ``asyncio._unregister_task``. Deprecate ``asyncio.Task.current_task()``
|
||||
and ``asyncio.Task.all_tasks()``.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32255
|
||||
.. date: 2017-12-12-07-29-06
|
||||
.. nonce: 2bfNmM
|
||||
.. section: Library
|
||||
|
||||
A single empty field is now always quoted when written into a CSV file. This
|
||||
allows to distinguish an empty row from a row consisting of a single empty
|
||||
field. Patch by Licht Takeuchi.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32277
|
||||
.. date: 2017-12-11-09-53-14
|
||||
.. nonce: jkKiVC
|
||||
.. section: Library
|
||||
|
||||
Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
|
||||
``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
|
||||
Sottile.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 30050
|
||||
.. date: 2017-12-10-23-44-56
|
||||
.. nonce: 4SZ3lY
|
||||
.. section: Library
|
||||
|
||||
New argument warn_on_full_buffer to signal.set_wakeup_fd lets you control
|
||||
whether Python prints a warning on stderr when the wakeup fd buffer
|
||||
overflows.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 29137
|
||||
.. date: 2017-12-10-21-19-14
|
||||
.. nonce: CFcON1
|
||||
.. section: Library
|
||||
|
||||
The ``fpectl`` library has been removed. It was never enabled by default,
|
||||
never worked correctly on x86-64, and it changed the Python ABI in ways that
|
||||
caused unexpected breakage of C extensions.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32273
|
||||
.. date: 2017-12-10-19-14-55
|
||||
.. nonce: 5KKlCv
|
||||
.. section: Library
|
||||
|
||||
Move asyncio.test_utils to test.test_asyncio.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32272
|
||||
.. date: 2017-12-10-18-59-13
|
||||
.. nonce: Mu84Am
|
||||
.. section: Library
|
||||
|
||||
Remove asyncio.async() function.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32269
|
||||
.. date: 2017-12-10-12-30-13
|
||||
.. nonce: Q85pKj
|
||||
.. section: Library
|
||||
|
||||
Add asyncio.get_running_loop() function.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32265
|
||||
.. date: 2017-12-10-00-57-51
|
||||
.. nonce: kELtTE
|
||||
.. section: Library
|
||||
|
||||
All class and static methods of builtin types now are correctly classified
|
||||
by inspect.classify_class_attrs() and grouped in pydoc ouput. Added
|
||||
types.ClassMethodDescriptorType for unbound class methods of builtin types.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32253
|
||||
.. date: 2017-12-09-11-30-35
|
||||
.. nonce: TQHSYF
|
||||
.. section: Library
|
||||
|
||||
Deprecate ``yield from lock``, ``await lock``, ``with (yield from lock)``
|
||||
and ``with await lock`` for asyncio synchronization primitives.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 22589
|
||||
.. date: 2017-12-08-15-09-41
|
||||
.. nonce: 8ouqI6
|
||||
.. section: Library
|
||||
|
||||
Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32193
|
||||
.. date: 2017-12-08-11-02-26
|
||||
.. nonce: NJe_TQ
|
||||
.. section: Library
|
||||
|
||||
Convert asyncio to use *async/await* syntax. Old styled ``yield from`` is
|
||||
still supported too.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32206
|
||||
.. date: 2017-12-07-13-14-40
|
||||
.. nonce: obm4OM
|
||||
.. section: Library
|
||||
|
||||
Add support to run modules with pdb
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32227
|
||||
.. date: 2017-12-05-13-25-15
|
||||
.. nonce: 3vnWFS
|
||||
.. section: Library
|
||||
|
||||
``functools.singledispatch`` now supports registering implementations using
|
||||
type annotations.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 15873
|
||||
.. date: 2017-12-04-17-41-40
|
||||
.. nonce: -T4TRK
|
||||
.. section: Library
|
||||
|
||||
Added new alternate constructors :meth:`datetime.datetime.fromisoformat`,
|
||||
:meth:`datetime.time.fromisoformat` and :meth:`datetime.date.fromisoformat`
|
||||
as the inverse operation of each classes's respective ``isoformat`` methods.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32199
|
||||
.. date: 2017-12-04-12-23-26
|
||||
.. nonce: nGof4v
|
||||
.. section: Library
|
||||
|
||||
The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32143
|
||||
.. date: 2017-11-26-17-28-26
|
||||
.. nonce: o7YdXL
|
||||
.. section: Library
|
||||
|
||||
os.statvfs() includes the f_fsid field from statvfs(2)
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 26439
|
||||
.. date: 2017-11-24-08-35-43
|
||||
.. nonce: IC45_f
|
||||
.. section: Library
|
||||
|
||||
Fix ctypes.util.find_library() for AIX by implementing
|
||||
ctypes._aix.find_library() Patch by: Michael Felt
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31993
|
||||
.. date: 2017-11-10-00-05-08
|
||||
.. nonce: -OMNg8
|
||||
.. section: Library
|
||||
|
||||
The picklers no longer allocate temporary memory when dumping large
|
||||
``bytes`` and ``str`` objects into a file object. Instead the data is
|
||||
directly streamed into the underlying file object.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 27456
|
||||
.. date: 2017-11-02-11-57-41
|
||||
.. nonce: snzyTC
|
||||
.. section: Library
|
||||
|
||||
Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31778
|
||||
.. date: 2017-10-18-17-29-30
|
||||
.. nonce: B6vAkP
|
||||
.. section: Library
|
||||
|
||||
ast.literal_eval() is now more strict. Addition and subtraction of arbitrary
|
||||
numbers no longer allowed.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31802
|
||||
.. date: 2017-10-17-14-52-14
|
||||
.. nonce: sYj2Zv
|
||||
.. section: Library
|
||||
|
||||
Importing native path module (``posixpath``, ``ntpath``) now works even if
|
||||
the ``os`` module still is not imported.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 30241
|
||||
.. date: 2017-10-10-18-56-46
|
||||
.. nonce: F_go20
|
||||
.. section: Library
|
||||
|
||||
Add contextlib.AbstractAsyncContextManager. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 31699
|
||||
.. date: 2017-10-05-11-06-32
|
||||
.. nonce: MF47Y6
|
||||
.. section: Library
|
||||
|
||||
Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when task
|
||||
arguments or results cause pickling or unpickling errors. This should make
|
||||
sure that calls to the :class:`ProcessPoolExecutor` API always eventually
|
||||
return.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 15216
|
||||
.. date: 2017-09-16-02-56-33
|
||||
.. nonce: lqXCTT
|
||||
.. section: Library
|
||||
|
||||
``TextIOWrapper.reconfigure()`` supports changing *encoding*, *errors*, and
|
||||
*newline*.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32418
|
||||
.. date: 2017-12-24-17-29-37
|
||||
.. nonce: eZe-ID
|
||||
.. section: Documentation
|
||||
|
||||
Add get_loop() method to Server and AbstractServer classes.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32252
|
||||
.. date: 2017-12-11-13-31-33
|
||||
.. nonce: YnFw7J
|
||||
.. section: Tests
|
||||
|
||||
Fix faulthandler_suppress_crash_report() used to prevent core dump files
|
||||
when testing crashes. getrlimit() returns zero on success.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32002
|
||||
.. date: 2017-11-11-16-35-18
|
||||
.. nonce: itDxIo
|
||||
.. section: Tests
|
||||
|
||||
Adjust C locale coercion testing for the empty locale and POSIX locale cases
|
||||
to more readily adjust to platform dependent behaviour.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 19764
|
||||
.. date: 2017-08-18-18-00-24
|
||||
.. nonce: ODpc9y
|
||||
.. section: Windows
|
||||
|
||||
Implement support for `subprocess.Popen(close_fds=True)` on Windows. Patch
|
||||
by Segev Finer.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 24960
|
||||
.. date: 2017-12-22-09-25-51
|
||||
.. nonce: TGdAgO
|
||||
.. section: Tools/Demos
|
||||
|
||||
2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
|
||||
rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
|
||||
from a zipfile.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32030
|
||||
.. date: 2017-12-20-23-22-32
|
||||
.. nonce: d1dcwh
|
||||
.. section: C API
|
||||
|
||||
Py_Initialize() doesn't reset the memory allocators to default if the
|
||||
``PYTHONMALLOC`` environment variable is not set.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 29084
|
||||
.. date: 2017-12-16-09-59-35
|
||||
.. nonce: ZGJ-LJ
|
||||
.. section: C API
|
||||
|
||||
Undocumented C API for OrderedDict has been excluded from the limited C API.
|
||||
It was added by mistake and actually never worked in the limited C API.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32264
|
||||
.. date: 2017-12-12-23-09-46
|
||||
.. nonce: ahRlOI
|
||||
.. section: C API
|
||||
|
||||
Moved the pygetopt.h header into internal/, since it has no public APIs.
|
||||
|
||||
..
|
||||
|
||||
.. bpo: 32241
|
||||
.. date: 2017-12-07-15-58-15
|
||||
.. nonce: LbyQt6
|
||||
.. section: C API
|
||||
|
||||
:c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now take the
|
||||
``const wchar *`` arguments instead of ``wchar *``.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
:c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now take the
|
||||
``const wchar *`` arguments instead of ``wchar *``.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Moved the pygetopt.h header into internal/, since it has no public APIs.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Undocumented C API for OrderedDict has been excluded from the limited C API.
|
||||
It was added by mistake and actually never worked in the limited C API.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Py_Initialize() doesn't reset the memory allocators to default if the
|
||||
``PYTHONMALLOC`` environment variable is not set.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Move constant folding from bytecode layer to AST layer.
|
||||
Original patch by Eugene Toder.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Implement PEP 552 (Deterministic pycs). Python now supports invalidating
|
||||
bytecode cache files bashed on a source content hash rather than source
|
||||
last-modified time.
|
||||
|
|
@ -1 +0,0 @@
|
|||
The `atexit` module now has its callback stored per interpreter.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
PEP 562: Add support for module ``__getattr__`` and ``__dir__``. Implemented by Ivan
|
||||
Levkivskyi.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
PEP 560: Add support for __mro_entries__ and __class_getitem__. Implemented
|
||||
by Ivan Levkivskyi.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add a new UTF-8 mode: implementation of the :pep:`540`.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
`-X dev` now injects a ``'default'`` entry into sys.warnoptions, ensuring
|
||||
that it behaves identically to actually passing ``-Wdefault`` at the command
|
||||
line.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
|
||||
``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that they
|
||||
take precedence over any other warning filters configured via the ``-W``
|
||||
option or the ``PYTHONWARNINGS`` environment variable.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Improve the error message logic for object.__new__ and object.__init__.
|
||||
Patch by Sanyam Khurana.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Don't byte swap the input keys to the SipHash algorithm on big-endian
|
||||
platforms. This should ensure siphash gives consistent results across
|
||||
platforms.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Implement TracebackType.__new__ to allow Python-level creation of
|
||||
traceback objects, and make TracebackType.tb_next mutable.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
|
||||
on Windows.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
The optimizer is now protected from spending much time doing complex
|
||||
calculations and consuming much memory for creating large constants in
|
||||
constant folding. Increased limits for constants that can be produced in
|
||||
constant folding.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
The :option:`-R` option now turns on hash randomization when the
|
||||
:envvar:`PYTHONHASHSEED` environment variable is set to ``0``. Previously,
|
||||
the option was ignored. Moreover, ``sys.flags.hash_randomization`` is now
|
||||
properly set to 0 when hash randomization is turned off by
|
||||
``PYTHONHASHSEED=0``.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
The ``__debug__`` constant is now optimized out at compile time. This fixes also
|
||||
bpo-22091.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
The error message of a TypeError raised when unpack non-iterable is now more
|
||||
specific.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Make MRO computation faster when a class inherits from a single base.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Fix the compilation failure on AIX after the f_fsid field has been added to the object returned by os.statvfs() (issue #32143). Original patch by Michael Felt.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add AIX uuid library support for RFC4122 using uuid_create() in libc.a
|
||||
|
|
@ -1 +0,0 @@
|
|||
``__class_getitem__`` is now an automatic class method.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
The default warning filter list now starts with a
|
||||
"default::DeprecationWarning:__main__" entry, so deprecation warnings are
|
||||
once again shown by default in single-file scripts and at the interactive
|
||||
prompt.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add get_loop() method to Server and AbstractServer classes.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
``TextIOWrapper.reconfigure()`` supports changing *encoding*, *errors*, and
|
||||
*newline*.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when
|
||||
task arguments or results cause pickling or unpickling errors.
|
||||
This should make sure that calls to the :class:`ProcessPoolExecutor` API
|
||||
always eventually return.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add contextlib.AbstractAsyncContextManager. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Importing native path module (``posixpath``, ``ntpath``) now works even if
|
||||
the ``os`` module still is not imported.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
ast.literal_eval() is now more strict. Addition and subtraction of
|
||||
arbitrary numbers no longer allowed.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
|
||||
|
|
@ -1,14 +0,0 @@
|
|||
The picklers do no longer allocate temporary memory when dumping large
|
||||
``bytes`` and ``str`` objects into a file object. Instead the data is
|
||||
directly streamed into the underlying file object.
|
||||
|
||||
Previously the C implementation would buffer all content and issue a
|
||||
single call to ``file.write`` at the end of the dump. With protocol 4
|
||||
this behavior has changed to issue one call to ``file.write`` per frame.
|
||||
|
||||
The Python pickler with protocol 4 now dumps each frame content as a
|
||||
memoryview to an IOBytes instance that is never reused and the
|
||||
memoryview is no longer released after the call to write. This makes it
|
||||
possible for the file object to delay access to the memoryview of
|
||||
previous frames without forcing any additional memory copy as was
|
||||
already possible with the C pickler.
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
Fix ctypes.util.find_library() for AIX
|
||||
by implementing ctypes._aix.find_library()
|
||||
Patch by: Michael Felt aka aixtools
|
||||
|
||||
ctypes.util.find_library has always returned None on a standard AIX.
|
||||
With this patch there is support for both AIX and svr4 shared libraries.
|
||||
None is returned only when there is nothinbg found. Normal behavior is now:
|
||||
on AIX find_library("FOO") returns either libFOO.a(libFOO.so) or libFOO.so
|
||||
while legacy names e.g., find_library("c") returns libc.a(shr.o)
|
||||
or libc.a(shr_64.o) - depending on 32 or 64-bit operations.
|
||||
Include RTLD_MEMBER to mode to support AIX legacy library(member) names
|
||||
(Modules/_ctype/posixmodule.c), ctypes/__init__.py and configure.ac)
|
||||
|
|
@ -1 +0,0 @@
|
|||
os.statvfs() includes the f_fsid field from statvfs(2)
|
||||
|
|
@ -1 +0,0 @@
|
|||
The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Added new alternate constructors :meth:`datetime.datetime.fromisoformat`,
|
||||
:meth:`datetime.time.fromisoformat` and :meth:`datetime.date.fromisoformat`
|
||||
as the inverse operation of each classes's respective ``isoformat`` methods.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
``functools.singledispatch`` now supports registering implementations using
|
||||
type annotations.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add support to run modules with pdb
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Convert asyncio to use *async/await* syntax. Old styled ``yield from`` is
|
||||
still supported too.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Deprecate ``yield from lock``, ``await lock``, ``with (yield from lock)``
|
||||
and ``with await lock`` for asyncio synchronization primitives.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
All class and static methods of builtin types now are correctly classified
|
||||
by inspect.classify_class_attrs() and grouped in pydoc ouput. Added
|
||||
types.ClassMethodDescriptorType for unbound class methods of builtin types.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add asyncio.get_running_loop() function.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Remove asyncio.async() function.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Move asyncio.test_utils to test.test_asyncio.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
The ``fpectl`` library has been removed. It was never enabled by default,
|
||||
never worked correctly on x86-64, and it changed the Python ABI in ways that
|
||||
caused unexpected breakage of C extensions.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
New argument warn_on_full_buffer to signal.set_wakeup_fd lets you control
|
||||
whether Python prints a warning on stderr when the wakeup fd buffer
|
||||
overflows.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
|
||||
``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
|
||||
Sottile.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
A single empty field is now always quoted when written into a CSV file.
|
||||
This allows to distinguish an empty row from a row consisting of a single empty field.
|
||||
Patch by Licht Takeuchi.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
Implement ``asyncio.current_task()`` and ``asyncio.all_tasks()``. Add
|
||||
helpers intended to be used by alternative task implementations:
|
||||
``asyncio._register_task``, ``asyncio._enter_task``, ``asyncio._leave_task``
|
||||
and ``asyncio._unregister_task``. Deprecate ``asyncio.Task.current_task()``
|
||||
and ``asyncio.Task.all_tasks()``.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Implement asyncio._get_running_loop() and get_event_loop() in C. This makes
|
||||
them 4x faster.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Implement asyncio.run().
|
||||
|
|
@ -1 +0,0 @@
|
|||
Abort asyncio SSLProtocol connection if handshake not complete within 10s
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
:func:`re.sub()` now replaces empty matches adjacent to a previous non-empty
|
||||
match.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Fix ``stop_serving`` in asyncio proactor loop kill all listening servers
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
|
||||
v140.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower case
|
||||
for scoped IPv6 addresses in hostnames now.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Convert asyncio functions that were documented as coroutines to coroutines.
|
||||
Affected functions: loop.sock_sendall, loop.sock_recv, loop.sock_accept,
|
||||
loop.run_in_executor, loop.getaddrinfo, loop.getnameinfo.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Implement asyncio.create_task(coro) shortcut
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Add :class:`importlib.abc.ResourceReader` as an ABC for loaders to provide a
|
||||
unified API for reading resources contained within packages. Also add
|
||||
:mod:`importlib.resources` as the port of ``importlib_resources``.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Fix socket.settimeout() and socket.setblocking() to keep socket.type
|
||||
as is. Fix socket.socket() constructor to reset any bit flags applied to
|
||||
socket's type. This change only affects OSes that have SOCK_NONBLOCK
|
||||
and/or SOCK_CLOEXEC.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Optimize asyncio.Future schedule/add/remove callback. The optimization
|
||||
shows 3-6% performance improvements of async/await code.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Use fastpath in asyncio.sleep if delay<0 (2x boost)
|
||||
|
|
@ -1 +0,0 @@
|
|||
Optimize asyncio.gather(); now up to 15% faster.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
asyncio.transport.resume_reading() and pause_reading() are now idempotent.
|
||||
New transport.is_reading() method is added.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
Optimize asyncio.iscoroutine() and loop.create_task() for non-native
|
||||
coroutines (e.g. async/await compiled with Cython).
|
||||
|
||||
'loop.create_task(python_coroutine)' used to be 20% faster than
|
||||
'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Make asyncio.Task.set_exception() and set_result() raise
|
||||
NotImplementedError. Task._step() and Future.__await__() raise proper
|
||||
exceptions when they are in an invalid state, instead of raising an
|
||||
AssertionError.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Don't unsubscribe signals in asyncio UNIX event loop on interpreter shutdown.
|
||||
|
|
@ -1 +0,0 @@
|
|||
asyncio: Add Task.get_loop() and Future.get_loop()
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Prevent Python crash from happening when Future._log_traceback is set to
|
||||
True manually. Now it can only be set to False, or a ValueError is raised.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
``functools.lru_cache`` uses less memory (3 words for each cached key) and
|
||||
takes about 1/3 time for cyclic GC.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Return the new file descriptor (i.e., the second argument) from ``os.dup2``.
|
||||
Previously, ``None`` was always returned.
|
||||
|
|
@ -1 +0,0 @@
|
|||
asyncio: Implement loop.start_tls()
|
||||
|
|
@ -1 +0,0 @@
|
|||
Improve frame repr() to mention filename, code name and current line number.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass
|
||||
or an instance of one.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Make type information optional on dataclasses.make_dataclass(). If omitted,
|
||||
the string 'typing.Any' is used.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Add params to dataclasses.make_dataclasses(): init, repr, eq, order, hash,
|
||||
and frozen. Pass them through to dataclass().
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Now that dict is defined as keeping insertion order, drop OrderedDict and
|
||||
just use plain dict.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Adjust C locale coercion testing for the empty locale and POSIX locale
|
||||
cases to more readily adjust to platform dependent behaviour.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix faulthandler_suppress_crash_report() used to prevent core dump files
|
||||
when testing crashes. getrlimit() returns zero on success.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
|
||||
rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
|
||||
from a zipfile.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Implement support for `subprocess.Popen(close_fds=True)` on Windows. Patch
|
||||
by Segev Finer.
|
||||
Loading…
Reference in New Issue