diff options
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS | 44 |
1 files changed, 32 insertions, 12 deletions
@@ -1,3 +1,23 @@ +What's New in Python 2.1 alpha 1? +================================= + +Core language, builtins, and interpreter + +- %[duxXo] formats of negative Python longs now produce a sign + character. In 1.6 and earlier, they never produced a sign, + and raised an error if the value of the long was too large + to fit in a Python int. In 2.0, they produced a sign if and + only if too large to fit in an int. This was inconsistent + across platforms (because the size of an int varies across + platforms), and inconsistent with hex() and oct(). Example: + + >>> "%x" % -0x42L + '-42' # in 2.1 + 'ffffffbe' # in 2.0 and before, on 32-bit machines + >>> hex(-0x42L) + '-0x42L' # in all versions of Python + + What's New in Python 2.0? ========================= @@ -79,7 +99,7 @@ Build issues --with-pydebug flag. The expected warning is for getopt() in Modules/main.c. This warning will be fixed for Python 2.1. -- Fixed configure to add -threads argument during linking on OSF1. +- Fixed configure to add -threads argument during linking on OSF1. Tools and other miscellany @@ -88,7 +108,7 @@ Tools and other miscellany comprehensions, and augmented assignments. The new compiler should also be backwards compatible with Python 1.5.2; the compiler will always generate code for the version of the interpreter it runs - under. + under. What's new in 2.0 release candidate 1 (since beta 2)? ===================================================== @@ -143,15 +163,15 @@ Standard library the file-like object interface and with StringIO. If operations are performed on a closed object, an exception is raised. The truncate method now accepts a position argument and readline accepts a size - argument. + argument. - There were many changes made to the linuxaudiodev module and its test suite; as a result, a short, unexpected audio sample should now - play when the regression test is run. + play when the regression test is run. Note that this module is named poorly, because it should work correctly on any platform that supports the Open Sound System - (OSS). + (OSS). The module now raises exceptions when errors occur instead of crashing. It also defines the AFMT_A_LAW format (logarithmic A-law @@ -200,7 +220,7 @@ Build issues - configure now accepts a --with-suffix option that specifies the executable suffix. This is useful for builds on Cygwin and Mac OS - X, for example. + X, for example. - The mmap.PAGESIZE constant is now initialized using sysconf when possible, which eliminates a dependency on -lucb for Reliant UNIX. @@ -211,7 +231,7 @@ Build issues POLLRDNORM and related constants. - Darwin (Mac OS X): Initial support for static builds on this - platform. + platform. - BeOS: A number of changes were made to the build and installation process. ar-fake now operates on a directory of object files. @@ -254,7 +274,7 @@ Core language, builtins, and interpreter string is too long." - Better error message when continue is found in try statement in a - loop. + loop. Standard library and extensions @@ -345,7 +365,7 @@ Standard library and extensions use buffer interface on Unicode strings. Does not hang if group id is followed by whitespace. -- StringIO: Size hint in readlines() is now supported as documented. +- StringIO: Size hint in readlines() is now supported as documented. - struct: Check ranges for bytes and shorts. @@ -419,7 +439,7 @@ C API PyArg_ParseTupleAndKeywords() now accepts "es#" and "es". PyArg_Parse() special cases "s#" for Unicode objects; it returns a pointer to the default encoded string data instead of to the raw - UTF-16. + UTF-16. - Py_BuildValue accepts B format (for bgen-generated code). @@ -448,7 +468,7 @@ Internals registry key. - On Unix, create .pyc/.pyo files with O_EXCL flag to avoid a race - condition. + condition. Build and platform-specific issues @@ -475,7 +495,7 @@ Tools and other miscellany - freeze: The modulefinder now works with 2.0 opcodes. -- IDLE: +- IDLE: Move hackery of sys.argv until after the Tk instance has been created, which allows the application-specific Tkinter initialization to be executed if present; also pass an explicit |