Mailman 3 July 2004 - Python-checkins

python/dist/src/Doc/lib libcodecs.tex, 1.28, 1.29 libstdtypes.tex, 1.155, 1.156
by montanaro＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Doc/lib In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv31380 Modified Files: libcodecs.tex libstdtypes.tex Log Message: link to the codecs page from the "".encode() description. Index: libcodecs.tex =================================================================== RCS file: /cvsroot/python/python/dist/src/Doc/lib/libcodecs.tex,v retrieving revision 1.28 retrieving revision 1.29 diff -C2 -d -r1.28 -r1.29 *** libcodecs.tex 19 Mar 2004 08:06:00 -0000 1.28 --- libcodecs.tex 1 Jul 2004 19:26:04 -0000 1.29 *************** *** 514,518 **** all other methods and attribute from the underlying stream. ! \subsection{Standard Encodings} Python comes with a number of codecs builtin, either implemented as C --- 514,518 ---- all other methods and attribute from the underlying stream. ! \subsection{Standard Encodings\label{standard-encodings}} Python comes with a number of codecs builtin, either implemented as C Index: libstdtypes.tex =================================================================== RCS file: /cvsroot/python/python/dist/src/Doc/lib/libstdtypes.tex,v retrieving revision 1.155 retrieving revision 1.156 diff -C2 -d -r1.155 -r1.156 *** libstdtypes.tex 3 Jun 2004 09:47:01 -0000 1.155 --- libstdtypes.tex 1 Jul 2004 19:26:04 -0000 1.156 *************** *** 579,583 **** \code{'strict'}, meaning that encoding errors raise a \exception{ValueError}. Other possible values are \code{'ignore'} and ! \code{'replace'}. \versionadded{2.0} \end{methoddesc} --- 579,584 ---- \code{'strict'}, meaning that encoding errors raise a \exception{ValueError}. Other possible values are \code{'ignore'} and ! \code{'replace'}. For a list of possible encodings, see ! section~\ref{standard-encodings}. \versionadded{2.0} \end{methoddesc}

1 0

python/dist/src/Lib cmd.py,1.37,1.38
by mwh＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Lib In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7724 Modified Files: cmd.py Log Message: Fix [ 924301 ] A leak case with cmd.py & readline & exception by ensuring that the readline completion function is always reset even in the case of an exception being raised. As a bonus, this makes the documentation for pre & postloop accurate again. Index: cmd.py =================================================================== RCS file: /cvsroot/python/python/dist/src/Lib/cmd.py,v retrieving revision 1.37 retrieving revision 1.38 diff -C2 -d -r1.37 -r1.38 *** cmd.py 22 Oct 2003 14:38:54 -0000 1.37 --- cmd.py 1 Jul 2004 14:52:10 -0000 1.38 *************** *** 108,137 **** self.preloop() ! if intro is not None: ! self.intro = intro ! if self.intro: ! self.stdout.write(str(self.intro)+"\n") ! stop = None ! while not stop: ! if self.cmdqueue: ! line = self.cmdqueue.pop(0) ! else: ! if self.use_rawinput: ! try: ! line = raw_input(self.prompt) ! except EOFError: ! line = 'EOF' else: ! self.stdout.write(self.prompt) ! self.stdout.flush() ! line = self.stdin.readline() ! if not len(line): ! line = 'EOF' else: ! line = line[:-1] # chop \n ! line = self.precmd(line) ! stop = self.onecmd(line) ! stop = self.postcmd(stop, line) ! self.postloop() def precmd(self, line): --- 108,154 ---- self.preloop() ! if self.use_rawinput and self.completekey: ! try: ! import readline ! self.old_completer = readline.get_completer() ! readline.set_completer(self.complete) ! readline.parse_and_bind(self.completekey+": complete") ! except ImportError: ! pass ! try: ! if intro is not None: ! self.intro = intro ! if self.intro: ! self.stdout.write(str(self.intro)+"\n") ! stop = None ! while not stop: ! if self.cmdqueue: ! line = self.cmdqueue.pop(0) else: ! if self.use_rawinput: ! try: ! line = raw_input(self.prompt) ! except EOFError: ! line = 'EOF' else: ! self.stdout.write(self.prompt) ! self.stdout.flush() ! line = self.stdin.readline() ! if not len(line): ! line = 'EOF' ! else: ! line = line[:-1] # chop \n ! line = self.precmd(line) ! stop = self.onecmd(line) ! stop = self.postcmd(stop, line) ! self.postloop() ! finally: ! if self.use_rawinput and self.completekey: ! try: ! import readline ! readline.set_completer(self.old_completer) ! except ImportError: ! pass ! def precmd(self, line): *************** *** 148,159 **** def preloop(self): """Hook method executed once when the cmdloop() method is called.""" ! if self.completekey: ! try: ! import readline ! self.old_completer = readline.get_completer() ! readline.set_completer(self.complete) ! readline.parse_and_bind(self.completekey+": complete") ! except ImportError: ! pass def postloop(self): --- 165,169 ---- def preloop(self): """Hook method executed once when the cmdloop() method is called.""" ! pass def postloop(self): *************** *** 162,172 **** """ ! if self.completekey: ! try: ! import readline ! readline.set_completer(self.old_completer) ! except ImportError: ! pass ! def parseline(self, line): """Parse the line into a command name and a string containing --- 172,177 ---- """ ! pass ! def parseline(self, line): """Parse the line into a command name and a string containing

1 0

python/dist/src/Lib decimal.py,1.1,1.2
by fdrake＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Lib In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv3972 Modified Files: decimal.py Log Message: fix small consistency nit Index: decimal.py =================================================================== RCS file: /cvsroot/python/python/dist/src/Lib/decimal.py,v retrieving revision 1.1 retrieving revision 1.2 diff -C2 -d -r1.1 -r1.2 *** decimal.py 1 Jul 2004 11:01:31 -0000 1.1 --- decimal.py 1 Jul 2004 14:28:36 -0000 1.2 *************** *** 5,9 **** # and Facundo Batista <facundo at taniquetil.com.ar> # and Raymond Hettinger <python at rcn.com> ! # and Aahz (aahz at pobox.com) # and Tim Peters --- 5,9 ---- # and Facundo Batista <facundo at taniquetil.com.ar> # and Raymond Hettinger <python at rcn.com> ! # and Aahz <aahz at pobox.com> # and Tim Peters

1 0

python/dist/src/Doc/tut tut.tex,1.235,1.236
by fdrake＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Doc/tut In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv3701/tut Modified Files: tut.tex Log Message: add omitted markup Index: tut.tex =================================================================== RCS file: /cvsroot/python/python/dist/src/Doc/tut/tut.tex,v retrieving revision 1.235 retrieving revision 1.236 diff -C2 -d -r1.235 -r1.236 *** tut.tex 1 Jul 2004 12:56:54 -0000 1.235 --- tut.tex 1 Jul 2004 14:26:31 -0000 1.236 *************** *** 4936,4941 **** output is sent to standard error. Other output options include routing messages through email, datagrams, sockets, or to an HTTP Server. New ! filters can select different routing based on message priority: DEBUG, ! INFO, WARNING, ERROR, and CRITICAL. The logging system can be configured directly from Python or can be --- 4936,4942 ---- output is sent to standard error. Other output options include routing messages through email, datagrams, sockets, or to an HTTP Server. New ! filters can select different routing based on message priority: ! \constant{DEBUG}, \constant{INFO}, \constant{WARNING}, \constant{ERROR}, ! and \constant{CRITICAL}. The logging system can be configured directly from Python or can be

1 0

python/dist/src/Doc/tut tut.tex,1.234,1.235
by rhettinger＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Doc/tut In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv17562 Modified Files: tut.tex Log Message: * Fix typos. * Format an example so that the identation is more obvious. * Add a section on the decimal module to the Brief Tour Part II. Index: tut.tex =================================================================== RCS file: /cvsroot/python/python/dist/src/Doc/tut/tut.tex,v retrieving revision 1.234 retrieving revision 1.235 diff -C2 -d -r1.234 -r1.235 *** tut.tex 3 Jun 2004 17:19:25 -0000 1.234 --- tut.tex 1 Jul 2004 12:56:54 -0000 1.235 *************** *** 4339,4343 **** \begin{verbatim} ! >>> class Reverse: "Iterator for looping over a sequence backwards" def __init__(self, data): --- 4339,4343 ---- \begin{verbatim} ! class Reverse: "Iterator for looping over a sequence backwards" def __init__(self, data): *************** *** 4353,4358 **** >>> for char in Reverse('spam'): ! print char ! m a --- 4353,4358 ---- >>> for char in Reverse('spam'): ! ... print char ! ... m a *************** *** 4372,4382 **** \begin{verbatim} ! >>> def reverse(data): ! for index in range(len(data)-1, -1, -1): ! yield data[index] ! >>> for char in reverse('golf'): ! print char ! f l --- 4372,4382 ---- \begin{verbatim} ! def reverse(data): ! for index in range(len(data)-1, -1, -1): ! yield data[index] ! >>> for char in reverse('golf'): ! ... print char ! ... f l *************** *** 4895,4899 **** \end{verbatim} ! The principal challenge of multi-thread applications is coordinating threads that share data or other resources. To that end, the threading module provides a number of synchronization primitives including locks, --- 4895,4899 ---- \end{verbatim} ! The principal challenge of multi-threaded applications is coordinating threads that share data or other resources. To that end, the threading module provides a number of synchronization primitives including locks, *************** *** 4936,4940 **** output is sent to standard error. Other output options include routing messages through email, datagrams, sockets, or to an HTTP Server. New ! filters select different routing based on message priority: DEBUG, INFO, WARNING, ERROR, and CRITICAL. --- 4936,4940 ---- output is sent to standard error. Other output options include routing messages through email, datagrams, sockets, or to an HTTP Server. New ! filters can select different routing based on message priority: DEBUG, INFO, WARNING, ERROR, and CRITICAL. *************** *** 4968,4977 **** ... return str(self.value) ... ! >>> a = A(10) # create a reference >>> d = weakref.WeakValueDictionary() >>> d['primary'] = a # does not create a reference ! >>> d['primary'] # fetch the object if it is still alive 10 ! >>> del a # remove the one reference >>> gc.collect() # run garbage collection right away 0 --- 4968,4977 ---- ... return str(self.value) ... ! >>> a = A(10) # create a reference >>> d = weakref.WeakValueDictionary() >>> d['primary'] = a # does not create a reference ! >>> d['primary'] # fetch the object if it is still alive 10 ! >>> del a # remove the one reference >>> gc.collect() # run garbage collection right away 0 *************** *** 5057,5060 **** --- 5057,5116 ---- + \section{Tools for Working with Decimal Floating Point\label{decimal-fp}} + + The \module{decimal} module, offers a \class{Decimal} data type for + decimal floating point arithmetic. Compared to the built-in \class{float} + type implemented with binary floating point, the new class is especially + useful for financial applications and other uses which require exact + decimal representation, control over precision, control over rounding + to meet legal or regulatory requirements, tracking of significant + decimal places, or for applications where the user expects the results + to match hand calculations done as taught in school. + + For example, calculating a 5% tax on a 70 cent phone charge gives + different results in decimal floating point and binary floating point + with the difference being significant when rounding to the nearest + cent: + + \begin{verbatim} + >>> from decimal import * + >>> Decimal('0.70') * Decimal('1.05') + Decimal("0.7350") + >>> .70 * 1.05 + 0.73499999999999999 + \end{verbatim} + + Note that the \class{Decimal} result keeps a trailing zero, automatically + inferring four place significance from two digit mulitiplicands. Decimal + reproduces mathematics as done by hand and avoids issues that can arise + when binary floating point cannot exactly represent decimal quantities. + + Exact representation enables the \class{Decimal} class to perform + modulo calculations and equality tests that are unsuitable for binary + floating point: + + \begin{verbatim} + >>> Decimal('1.00') % Decimal('.10') + Decimal("0.00") + >>> 1.00 % 0.10 + 0.09999999999999995 + + >>> sum([Decimal('0.1')]*10) == Decimal('1.0') + True + >>> sum([0.1]*10) == 1.0 + False + \end{verbatim} + + The \module{decimal} module also allows arbitrarily large precisions to be + set for calculation: + + \begin{verbatim} + >>> getcontext().prec = 36 + >>> Decimal(1) / Decimal(7) + Decimal("0.142857142857142857142857142857142857") + \end{verbatim} + + + \chapter{What Now? \label{whatNow}}

1 0

python/nondist/peps pep-0320.txt,1.13,1.14
by rhettinger＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/nondist/peps In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv15449 Modified Files: pep-0320.txt Log Message: Move two entries from 'planned' to 'done' Index: pep-0320.txt =================================================================== RCS file: /cvsroot/python/python/nondist/peps/pep-0320.txt,v retrieving revision 1.13 retrieving revision 1.14 diff -C2 -d -r1.13 -r1.14 *** pep-0320.txt 2 Jun 2004 14:48:16 -0000 1.13 --- pep-0320.txt 1 Jul 2004 12:42:30 -0000 1.14 *************** *** 44,47 **** --- 44,49 ---- PEP 322 Reverse Iteration. + PEP 327: A Decimal package for fixed precision arithmetic. + Encapsulate the decorate-sort-undecorate pattern in a keyword for list.sort(). *************** *** 53,56 **** --- 55,62 ---- Add a collections module with a deque() object. + Add two statistical/reduction functions, nlargest() and nsmallest() + to the heapq module. + + Planned features for 2.4 *************** *** 59,64 **** PEP 318: Function/method decorator syntax - PEP 327: A Decimal package for fixed precision arithmetic. - PEP 328: Imports: Multi-line and Absolute/Relative. (Still quite controversial.) --- 65,68 ---- *************** *** 68,78 **** Remove support for platforms as described in PEP 11. - - Add a module for statistical and reduction functions: - stddev, average, nlargest, nsmallest, product, etc. - (There is a tested implementation in the sandbox but it - may be held-off until Py2.5 because there doesn't not - appear to be any user demand and the author is concerned - that the module may not offer a sufficiently rich API). Finish implementing the Distutils bdist_dpkg command. (AMK) --- 72,75 ----

1 0

[Python-checkins] python/dist/src/Doc/whatsnew whatsnew24.tex, 1.55, 1.56
by rhettinger＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Doc/whatsnew In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv5372 Modified Files: whatsnew24.tex Log Message: Move Decimal from the sandbox into production. Index: whatsnew24.tex =================================================================== RCS file: /cvsroot/python/python/dist/src/Doc/whatsnew/whatsnew24.tex,v retrieving revision 1.55 retrieving revision 1.56 diff -C2 -d -r1.55 -r1.56 *** whatsnew24.tex 10 Jun 2004 05:03:16 -0000 1.55 --- whatsnew24.tex 1 Jul 2004 11:52:15 -0000 1.56 *************** *** 202,205 **** --- 202,267 ---- %====================================================================== + \section{PEP 327: Decimal Data Type} + + A new module, \module{decimal}, offers a \class{Decimal} data type for + decimal floating point arithmetic. Compared to the built-in \class{float} + type implemented with binary floating point, the new class is especially + useful for financial applications and other uses which require exact + decimal representation, control over precision, control over rounding + to meet legal or regulatory requirements, tracking of significant + decimal places, or for applications where the user expects the results + to match hand calculations done the way they were taught in school. + + For example, calculating a 5% tax on a 70 cent phone charge gives + different results in decimal floating point and binary floating point + with the difference being significant when rounding to the nearest + cent: + + \begin{verbatim} + >>> from decimal import * + >>> Decimal('0.70') * Decimal('1.05') + Decimal("0.7350") + >>> .70 * 1.05 + 0.73499999999999999 + \end{verbatim} + + Note that the \class{Decimal} result keeps a trailing zero, automatically + inferring four place significance from two digit mulitiplicands. A key + goal is to reproduce the mathematics we do by hand and avoid the tricky + issues that arise when decimal numbers cannot be represented exactly in + binary floating point. + + Exact representation enables the \class{Decimal} class to perform + modulo calculations and equality tests that would fail in binary + floating point: + + \begin{verbatim} + >>> Decimal('1.00') % Decimal('.10') + Decimal("0.00") + >>> 1.00 % 0.10 + 0.09999999999999995 + + >>> sum([Decimal('0.1')]*10) == Decimal('1.0') + True + >>> sum([0.1]*10) == 1.0 + False + \end{verbatim} + + The \module{decimal} module also allows arbitrarily large precisions to be + set for calculation: + + \begin{verbatim} + >>> getcontext().prec = 24 + >>> Decimal(1) / Decimal(7) + Decimal("0.142857142857142857142857") + \end{verbatim} + + \begin{seealso} + \seepep{327}{Decimal Data Type}{Written by Facundo Batista and implemented + by Eric Price, Facundo Bastista, Raymond Hettinger, Aahz, and Tim Peters.} + \end{seealso} + + + %====================================================================== \section{Other Language Changes}

2 1

python/dist/src/Lib/test test___all__.py, 1.38, 1.39
by rhettinger＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Lib/test In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv29984 Modified Files: test___all__.py Log Message: Move Decimal from the sandbox into production. Index: test___all__.py =================================================================== RCS file: /cvsroot/python/python/dist/src/Lib/test/test___all__.py,v retrieving revision 1.38 retrieving revision 1.39 diff -C2 -d -r1.38 -r1.39 *** test___all__.py 13 Jun 2004 05:46:14 -0000 1.38 --- test___all__.py 1 Jul 2004 11:15:39 -0000 1.39 *************** *** 83,86 **** --- 83,87 ---- self.check_all("csv") self.check_all("dbhash") + self.check_all("decimal") self.check_all("difflib") self.check_all("dircache")

1 0

python/dist/src/Lib/test test_decimal.py, NONE, 1.1 regrtest.py, 1.153, 1.154
by rhettinger＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Lib/test In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26988/Lib/test Modified Files: regrtest.py Added Files: test_decimal.py Log Message: Move Decimal from the sandbox into production. --- NEW FILE: test_decimal.py --- # Copyright (c) 2004 Python Software Foundation. # All rights reserved. # Written by Eric Price <eprice at tjhsst.edu> # and Facundo Batista <facundo at taniquetil.com.ar> # and Raymond Hettinger <python at rcn.com> # and Aahz (aahz at pobox.com) # and Tim Peters """ These are the test cases for the Decimal module. There are two groups of tests, Arithmetic and Behaviour. The former test the Decimal arithmetic using the tests provided by Mike Cowlishaw. The latter test the pythonic behaviour according to PEP 327. Cowlishaw's tests can be downloaded from: www2.hursley.ibm.com/decimal/dectest.zip [...1043 lines suppressed...] if arith or is_resource_enabled('decimal'): test_classes.extend([DecimalTest]) run_unittest(*test_classes) import decimal as DecimalModule run_doctest(DecimalModule, verbose) return if __name__ == '__main__': # Calling with no arguments runs all tests. # Calling with "Skip" will skipover the arithmetic tests. if len(sys.argv) == 1: test_main(arith=True, verbose=True) elif len(sys.argv) == 2: arith = sys.argv[1].lower() != 'skip' test_main(arith=arith, verbose=True) else: raise ValueError("test called with wrong arguments, use test_Decimal [Skip]") Index: regrtest.py =================================================================== RCS file: /cvsroot/python/python/dist/src/Lib/test/regrtest.py,v retrieving revision 1.153 retrieving revision 1.154 diff -C2 -d -r1.153 -r1.154 *** regrtest.py 6 Jun 2004 15:53:18 -0000 1.153 --- regrtest.py 1 Jul 2004 11:01:31 -0000 1.154 *************** *** 72,75 **** --- 72,78 ---- a long time to complete. + decimal - Test the decimal module against a large suite that + verifies compliance with standards. + To enable all resources except one, use '-uall,-<resource>'. For example, to run all the tests except for the bsddb tests, give the *************** *** 113,117 **** from test import test_support ! RESOURCE_NAMES = ('audio', 'curses', 'largefile', 'network', 'bsddb') --- 116,121 ---- from test import test_support ! RESOURCE_NAMES = ('audio', 'curses', 'largefile', 'network', 'bsddb', ! 'decimal')

1 0

python/dist/src/Misc NEWS,1.1016,1.1017
by rhettinger＠users.sourceforge.net July 1, 2004

July 1, 2004

Update of /cvsroot/python/python/dist/src/Misc In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26988/Misc Modified Files: NEWS Log Message: Move Decimal from the sandbox into production. Index: NEWS =================================================================== RCS file: /cvsroot/python/python/dist/src/Misc/NEWS,v retrieving revision 1.1016 retrieving revision 1.1017 diff -C2 -d -r1.1016 -r1.1017 *** NEWS 30 Jun 2004 09:09:38 -0000 1.1016 --- NEWS 1 Jul 2004 11:01:27 -0000 1.1017 *************** *** 351,354 **** --- 351,356 ---- ------- + - Added Decimal.py per PEP 327. + - Bug #981299: rsync is now a recognized protocol in urlparse that uses a "netloc" portion of a URL.

1 0