From: Barry Warsaw Date: Wed, 12 Sep 2012 04:12:29 +0000 (-0400) Subject: - Issue #15906: Fix a regression in argparse caused by the preceding change, X-Git-Tag: v3.3.1rc1~818^2^2~84 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0ae066b28141ec96504f30eb2a32206896853935;p=python - Issue #15906: Fix a regression in argparse caused by the preceding change, when action='append', type='str' and default=[]. --- 0ae066b28141ec96504f30eb2a32206896853935 diff --cc Lib/argparse.py index d5976e9f4f,fba6a262f5..66cd70aa31 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@@ -1961,8 -1957,9 +1961,9 @@@ class ArgumentParser(_AttributeHolder, # twice (which may fail) if the argument was given, but # only if it was defined already in the namespace if (action.default is not None and - isinstance(action, _StoreAction) and - hasattr(namespace, action.dest) and - action.default is getattr(namespace, action.dest)): ++ isinstance(action, _StoreAction) and + hasattr(namespace, action.dest) and + action.default is getattr(namespace, action.dest)): setattr(namespace, action.dest, self._get_value(action, action.default)) diff --cc Misc/NEWS index fabb36e372,24c6b7121d..993bc11b0f --- a/Misc/NEWS +++ b/Misc/NEWS @@@ -24,95 -21,101 +24,98 @@@ Core and Builtin - Issue #15801: Make sure mappings passed to '%' formatting are actually subscriptable. -- Issue #15726: Fix incorrect bounds checking in PyState_FindModule. - Patch by Robin Schreiber. - -- Issue #15604: Update uses of PyObject_IsTrue() to check for and handle - errors correctly. Patch by Serhiy Storchaka. +Library +------- -- Issue #13119: sys.stdout and sys.stderr are now using "\r\n" newline on - Windows, as Python 2. +- Issue #15882: Change _decimal to accept any coefficient tuple when + constructing infinities. This is done for backwards compatibility + with decimal.py: Infinity coefficients are undefined in _decimal + (in accordance with the specification). -- Issue #14579: Fix CVE-2012-2135: vulnerability in the utf-16 decoder after - error handling. Patch by Serhiy Storchaka. +- Issue #15876: Fix a refleak in the curses module: window.encoding. -- Issue #15404: Refleak in PyMethodObject repr. +- Issue #15881: Fixed atexit hook in multiprocessing. Original patch + by Chris McDonough. -- Issue #15394: An issue in PyModule_Create that caused references to - be leaked on some error paths has been fixed. Patch by Julia Lawall. +- Issue #15340: Fix importing the random module when /dev/urandom cannot + be opened. This was a regression caused by the hash randomization patch. -- Issue #15368: An issue that caused bytecode generation to be - non-deterministic when using randomized hashing (-R) has been fixed. +- Issue #15841: The readable(), writable() and seekable() methods of BytesIO + and StringIO objects now raise ValueError when the object has been closed. + Patch by Alessandro Moura. -- Issue #15020: The program name used to search for Python's path is now - "python3" under Unix, not "python". +- Issue #15447: Use subprocess.DEVNULL in webbrowser, instead of opening + os.devnull explicitly and leaving it open. -- Issue #15033: Fix the exit status bug when modules invoked using -m swith, - return the proper failure return value (1). Patch contributed by Jeff Knupp. +- Issue #15509: webbrowser.UnixBrowser no longer passes empty arguments to + Popen when %action substitutions produce empty strings. -- Issue #12268: File readline, readlines and read() or readall() methods - no longer lose data when an underlying read system call is interrupted. - IOError is no longer raised due to a read system call returning EINTR - from within these methods. +- Issue #12776,#11839: call argparse type function (specified by add_argument) + only once. Before, the type function was called twice in the case where the + default was specified and the argument was given as well. This was + especially problematic for the FileType type, as a default file would always + be opened, even if a file argument was specified on the command line. -- Issue #15142: Fix reference leak when deallocating instances of types - created using PyType_FromSpec(). ++- Issue #15906: Fix a regression in argparse caused by the preceding change, ++ when action='append', type='str' and default=[]. + -- Issue #10053: Don't close FDs when FileIO.__init__ fails. Loosely based on - the work by Hirokazu Yamamoto. +Extension Modules +----------------- -- Issue #14775: Fix a potential quadratic dict build-up due to the garbage - collector repeatedly trying to untrack dicts. +Tests +----- -- Issue #14494: Fix __future__.py and its documentation to note that - absolute imports are the default behavior in 3.0 instead of 2.7. - Patch by Sven Marnach. +- Issue #15802: Fix test logic in TestMaildir.test_create_tmp. Patch + by Serhiy Storchaka. -- Issue #14761: Fix potential leak on an error case in the import machinery. +- Issue #15557: Added a test suite for the webbrowser module, thanks + to Anton Barkovsky. -- Issue #14699: Fix calling the classmethod descriptor directly. +Build +----- -- Issue #14433: Prevent msvcrt crash in interactive prompt when stdin - is closed. +- Issue #15819: Make sure we can build Python out-of-tree from a readonly + source directory. (Somewhat related to Issue #9860.) -- Issue #11603 (again): Setting __repr__ to __str__ now raises a RuntimeError - when repr() or str() is called on such an object. +Documentation +------------- -- Issue #14658: Fix binding a special method to a builtin implementation of a - special method with a different name. +- Issue #11964: Document a change in v3.2 to the behavior of the indent + parameter of json encoding operations. -- Issue #14630: Fix a memory access bug for instances of a subclass of int - with value 0. +Tools/Demos +----------- -- Issue #14612: Fix jumping around with blocks by setting f_lineno. -- Issue #14607: Fix keyword-only arguments which started with ``__``. +What's New in Python 3.3.0? +=========================== -- Issue #13889: Check and (if necessary) set FPU control word before calling - any of the dtoa.c string <-> float conversion functions, on MSVC builds of - Python. This fixes issues when embedding Python in a Delphi app. +*Release date: XX-Sep-2012* -- Issue #14474: Save and restore exception state in thread.start_new_thread() - while writing error message if the thread leaves a unhandled exception. +Core and Builtins +----------------- -- Issue #13019: Fix potential reference leaks in bytearray.extend(). Patch - by Suman Saha. +Library +------- -- Issue #14378: Fix compiling ast.ImportFrom nodes with a "__future__" string as - the module name that was not interned. -- Issue #14331: Use significantly less stack space when importing modules by - allocating path buffers on the heap instead of the stack. +What's New in Python 3.3.0 Release Candidate 2? +=============================================== -- Issue #14334: Prevent in a segfault in type.__getattribute__ when it was not - passed strings. +*Release date: 09-Sep-2012* -- Issue #1469629: Allow cycles through an object's __dict__ slot to be - collected. (For example if ``x.__dict__ is x``). +Core and Builtins +----------------- -- Issue #14172: Fix reference leak when marshalling a buffer-like object - (other than a bytes object). +- Issue #13992: The trashcan mechanism is now thread-safe. This eliminates + sporadic crashes in multi-thread programs when several long deallocator + chains ran concurrently and involved subclasses of built-in container + types. -- Issue #13521: dict.setdefault() now does only one lookup for the given key, - making it "atomic" for many purposes. Patch by Filip Gruszczyński. +- Issue #15784: Modify OSError.__str__() to better distinguish between + errno error numbers and Windows error numbers. -- Issue #14471: Fix a possible buffer overrun in the winreg module. +- Issue #15781: Fix two small race conditions in import's module locking. Library -------