[issue13386] Document documentation conventions for optional args

Ezio Melotti added the comment: > From Ezio's original post: ''' > If a function has optional arguments but it doesn't accept keyword > arguments, the "func([arg1])" notation is used instead. ... The > notation "func([arg=default])" should never be used, and "func([arg])" > should be used onl

[issue13349] Uninformal error message in index() and remove() functions

Ezio Melotti added the comment: > I found safe_repr() from Lib/unittest/util.py. The functions in Lib/unittest/util.py shouldn't be used outside unittest. > We would require a similar function, just implemented in C. > What is a good place to define such C helpers that could be used everywhere

[issue13349] Uninformal error message in index() and remove() functions

Petri Lehtinen added the comment: Ezio Melotti wrote: > You could start by adding it in the file where you need it. If it > starts becoming useful elsewhere too, it can then be moved somewhere > else. I would expect such function to be private, so we are free to > move it whenever we need it. W

[issue13423] Ranges cannot be meaningfully compared for equality or hashed

New submission from Chase Albert : My expectation was that range(2,5) == range(2,5), and that they should hash the same. This is not the case. -- messages: 147838 nosy: rob.anyone priority: normal severity: normal status: open title: Ranges cannot be meaningfully compared for equality o

[issue13423] Ranges cannot be meaningfully compared for equality or hashed

Florent Xicluna added the comment: this was implemented with ticket #13201. It will be available in version 3.3. -- nosy: +flox resolution: -> out of date stage: -> committed/rejected status: open -> closed superseder: -> Implement comparison operators for range objects type: behavio

[issue13424] Add examples for open’s new opener argument

New submission from Éric Araujo : The new opener argument to open and TextIOWrapper closed two bugs on this tracker: using O_CLOEXEC and replacing the unofficial 'c' mode (O_CREATE). I think it’d be nice to have these as examples (maybe not in the docs of TextIOWrapper which are already huge,

[issue12760] Add create mode to open()

Éric Araujo added the comment: See #13424 for a doc request about this. -- nosy: +eric.araujo ___ Python tracker ___ ___ Python-bugs-

[issue13424] Add examples for open’s new opener argument

Éric Araujo added the comment: s/TextIOWrapper/FileIO/ -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http

[issue12797] io.FileIO and io.open should support openat

Éric Araujo added the comment: See #13424 for a doc request about this. -- ___ Python tracker ___ ___ Python-bugs-list mailing list U

[issue12780] Clean up tests for pyc/pyo in __file__

Éric Araujo added the comment: > Seems reasonable to me. When did/does unicodedata ever have a __file__ > attribute? No idea. Maybe it has to do with static vs. dynamic linking? Or alternate VMs? -- ___ Python tracker

[issue2979] use_builtin_types in xmlrpc.server

Éric Araujo added the comment: Looks good. -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.pytho

[issue13358] HTMLParser incorrectly handles cdata elements.

Ezio Melotti added the comment: Attached patch should solve the issue. -- assignee: -> ezio.melotti keywords: +patch stage: test needed -> commit review versions: +Python 3.2, Python 3.3 Added file: http://bugs.python.org/file23721/issue13358.diff _

[issue13294] http.server: HEAD request should not return a body

Éric Araujo added the comment: Hi Michele, long time no see :) > Well, actually SimpleHTTPRequesthandler extends BaseHTTPHandler with basic > do_GET and > do_HEAD methods. > Unittests for http.server shows that this behavior is intended, since: [snip] Not sure what this test shows (maybe beca

[issue4147] xml.dom.minidom toprettyxml: omit whitespace for text-only elements

Ezio Melotti added the comment: I did some tests, creating an element ('elem') that contains two adjacent text nodes ('text'). With my latest patch the prettyprint is: text text Here both the text nodes are printed on a newline and they are indented. With your patch it sho

[issue13425] http.client.HTTPMessage.getallmatchingheaders() always returns []

New submission from Stanisław Jankowski : http.client.HTTPMessage.getallmatchingheaders() always returns [] Python 3.2.2: Calling the code below does not give the expected result. sjankowski@sjankowski:~$ python3 Python 3.2.2rc1 (default, Aug 14 2011, 18:43:44) [GCC 4.6.1] on linux2 Type "help

[issue13425] http.client.HTTPMessage.getallmatchingheaders() always returns []

Ezio Melotti added the comment: The problem seems to be in Lib/http/client.py:227. The code adds a ':' that is not found in the list of headers returned by self.keys(). -- nosy: +ezio.melotti ___ Python tracker _

[issue13425] http.client.HTTPMessage.getallmatchingheaders() always returns []

Changes by Petri Lehtinen : -- nosy: +petri.lehtinen ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mai

[issue13426] The Python Standard Library >> 11. Data Persistence

New submission from Nebelhom : -- Python v3.3a0 documentation >> The Python Standard Library >> 11. Data Persistence Section 11.1 pickle module #1 11.1.3. Module Interface exception pickle.UnpicklingError Error raised when there a problem unpickling an object, s

[issue13425] http.client.HTTPMessage.getallmatchingheaders() always returns []

Ezio Melotti added the comment: Actually the headers are already parsed, so the code should use self.items() instead of self.keys(), check if the key (without ':') matches, and append the key-value pair to the list. Having a list of key-value pairs seems more useful than having a bare string,

[issue13349] Uninformal error message in index() and remove() functions

Nick Coghlan added the comment: Please don't stress too much about providing an indication that the repr has been truncated - it's an error message, not part of the normal program output. Besides, the lack of a closing ')', ']', '}' or '>' will usually indicate something is amiss in long repr

[issue13427] string comparison with ==

New submission from Alan Beccati : Hello, did I discover a python string comparison bug or is this behaviour expected and I am doing something wrong? This is the code I run: for line in lines[4:]: currColl=line.split(":")[1].strip() print "'",currColl,"'","==","'",collName,"'"

[issue13427] string comparison with ==

Florent Xicluna added the comment: collName is probably not what you expect. You can print repr(collName), repr(currColl) to verify this. It is not a bug on Python side. -- nosy: +flox resolution: -> works for me stage: -> committed/rejected status: open -> pending _

[issue13426] The Python Standard Library >> 11. Data Persistence

Roundup Robot added the comment: New changeset ce34e9223450 by Ezio Melotti in branch '2.7': #13426: fix typo in pickle doc. http://hg.python.org/cpython/rev/ce34e9223450 New changeset 1f31061afdaf by Ezio Melotti in branch '3.2': #13426: fix typos in pickle doc. http://hg.python.org/cpython/re

[issue13426] The Python Standard Library >> 11. Data Persistence

Ezio Melotti added the comment: This is fixed now, thanks for the report! Regarding #4, sqlite3 is included in the official installer provided for Windows, so that shouldn't be a problem. Regarding the output, I don't think is necessary to add it. The example is fairly complex, so people that n

[issue13428] PyUnicode_FromFormatV: support width and precision for string codes, e.g %S and %R

New submission from Petri Lehtinen : Currently, the width and precision information for string codes are accepted but ignored. They should be used to pad short strings (width) and truncate long ones (precision), just like printf() (only in terms of code points rather than bytes, since those co

[issue13349] Uninformal error message in index() and remove() functions

Petri Lehtinen added the comment: Nick Coghlan wrote: > Please don't stress too much about providing an indication that the > repr has been truncated - it's an error message, not part of the > normal program output. Besides, the lack of a closing ')', ']', '}' > or '>' will usually indicate some

[issue13428] PyUnicode_FromFormatV: support width and precision for string codes, e.g %S and %R

STINNER Victor added the comment: Duplicate of #7330. -- nosy: +haypo resolution: -> duplicate status: open -> closed ___ Python tracker ___ ___

[issue7330] PyUnicode_FromFormat: implement width and precision for %s, %S, %R, %V, %U, %A

STINNER Victor added the comment: Issue #13428 has been marked as a duplicate of this issue. -- nosy: +petri.lehtinen ___ Python tracker ___ _

[issue13427] string comparison with ==

Changes by Florent Xicluna : -- status: pending -> closed ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http:

[issue13426] Typos in pickle docs

Changes by Éric Araujo : -- nosy: +eric.araujo title: The Python Standard Library >> 11. Data Persistence -> Typos in pickle docs ___ Python tracker ___

[issue13426] The Python Standard Library >> 11. Data Persistence

Nebelhom added the comment: Hi Ezio, "Regarding the output, I don't think is necessary to add it." I left it in because of a discussion in core-mentorship, where they mentioned that it would be beneficial to have it in. I pasted the exchange below if you are interested. Thanks for looking at

[issue6570] Tutorial clarity: section 4.7.2, parameters and arguments

Ezio Melotti added the comment: Here is a new patch. -- Added file: http://bugs.python.org/file23722/issue6570-2.diff ___ Python tracker ___ _

[issue13125] test_all_project_files() expected failure

Changes by Éric Araujo : -- nosy: +eric.araujo ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.pyth

[issue10772] Several actions for argparse arguments missing from docs

Éric Araujo added the comment: Looks good to me. -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mai

[issue10772] Several actions for argparse arguments missing from docs

Changes by Ezio Melotti : -- stage: patch review -> commit review ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe

[issue4508] distutils compiler not handling spaces in path to output/src files

Éric Araujo added the comment: > Ok, I found a similar problem with MMTK. I don’t know what that is. > I am currently altering my distutils package to add a function called > nt_quote_dir > that adds quotes to paths with spaces and then applies it to each path if the > platform > is win32. Yo

[issue13294] http.server: HEAD request should not return a body

Michele Orrù added the comment: These tests shows how SimpleHTTPRequestHandler behaves: if the class contains a do_FOO method, it is called, otherwise error501 is raised. That's what Karl said with «Or to modify the library code that for any resources not yet defined.». Since SimpleHTTPRequestHa

[issue13427] string comparison with ==

Alan added the comment: Using repr highlights the issue which lies in the behaviour of str.strip() which does not strip away null spaces as I would have expected: ' 'utm10\x00' ' == ' 'utm10' ' not equal Changing the code to: currColl=line.split(":")[1].strip().strip("\0") works but I think

[issue13420] newer() function in dep_util.py discard changes in the same second

Éric Araujo added the comment: Hi David. Thanks for reporting the issue. I have to warn you that there is a high bar for distutils changes; due to the mass of code out there that relies on undocumented internal behavior or works around old bugs, a feature freeze is in effect and we try to b

[issue13427] string comparison with ==

Ezio Melotti added the comment: Nope, str.strip only strips whitespace, and \x00 is not considered whitespace: >>> '\x00'.isspace() False -- nosy: +ezio.melotti resolution: works for me -> invalid ___ Python tracker

[issue13294] http.server: HEAD request should not return a body

Michele Orrù added the comment: As Ezio just pointed out, strip('\r\n') is still behaves differently from the previous code. Sorry for that. -- ___ Python tracker ___ _

[issue13420] newer() function in dep_util.py discard changes in the same second

David Amian added the comment: sorry, I didn't explain well. I've a project, in the setup.py file, I've a function called update_prefix, that updates the 'path_project' variable with prefix arguments from setup.py If you runs setup.py with --prefix=/usr, then the file in 'projectname/projectna

[issue13426] Typos in pickle docs

Éric Araujo added the comment: >> Regarding the output, I don't think is necessary to add it. > I left it in because of a discussion in core-mentorship, where they > mentioned that it would be beneficial to have it in. Well, people can have diverging opinions. Terry’s was that “having the outp

[issue13424] Add examples for open’s new opener argument

Changes by Ross Lagerwall : -- nosy: +rosslagerwall ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail

[issue12779] Update packaging documentation

Éric Araujo added the comment: I worked on this a bit more and the current boring diff has more than 1000 deleted lines and more than 1000 added lines. After thinking about it, maybe I should not make a mega-patch with markup/boring changes first but rather fix markup as part of more consist

[issue13420] newer() function in dep_util.py discard changes in the same second

Éric Araujo added the comment: > I've a project, in the setup.py file, I've a function called update_prefix, > that updates the > 'path_project' variable with prefix arguments from setup.py > If you runs setup.py with --prefix=/usr, then the file in > 'projectname/projectnameconfig.py' is > mo

[issue4442] document immutable type subclassing via __new__

Changes by Éric Araujo : -- nosy: +eric.araujo ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.pytho

[issue4395] Document auto __ne__ generation; provide a use case for non-trivial __ne__

Changes by Éric Araujo : -- nosy: +eric.araujo ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.pytho

[issue13322] buffered read() and write() does not raise BlockingIOError

sbt added the comment: > Thanks again. Just a nit: the tests should be in MiscIOTest, since > they don't directly instantiate the individual classes. Also, perhaps > it would be nice to check that the exception's "errno" attribute is > EAGAIN. Done. -- Added file: http://bugs.pytho

[issue13388] document hg commit hooks in the devguide

Éric Araujo added the comment: > The commit details (including its changeset, branch and commit message) In Mercurial terminology, a changeset *is* a commit (or if you really want to make a distinction, a commit is the action that creates a changeset). I think you meant “diff”. Moreover, on

[issue13343] Lambda keyword-only argument not updating co_freevars

Éric Araujo added the comment: > It's made my day. I get to boast at school now! You could do more of that if you got a patch committed! See http://docs.python.org/devguide and http://mail.python.org/mailman/listinfo/core-mentorship for more info if you’re interested. -- nosy: +eric

[issue13292] missing versionadded for bytearray

Éric Araujo added the comment: Thanks for cleaning up the reports. I’m not a numbers person :) -- ___ Python tracker ___ ___ Python-

[issue4147] xml.dom.minidom toprettyxml: omit whitespace for text-only elements

Roundup Robot added the comment: New changeset 7262f8f276ff by Ezio Melotti in branch '2.7': #4147: minidom's toprettyxml no longer adds whitespace around a text node when it is the only child of an element. Initial patch by Dan Kenigsberg. http://hg.python.org/cpython/rev/7262f8f276ff New ch

[issue4147] xml.dom.minidom toprettyxml: omit whitespace for text-only elements

Ezio Melotti added the comment: I committed my patch with a few more tests. This should be fixed now. Thanks for the report and the patch! -- resolution: -> fixed stage: commit review -> committed/rejected status: open -> closed ___ Python tracker

[issue13429] provide __file__ to extension init function

New submission from Stefan Behnel : In Python modules, the top-level module code sees the __file__ variable and can use it to refer to resources in package subdirectories, for example. This is not currently possible in extension modules, because __file__ is only set after running the module in

[issue13430] Add a curry function to the functools module

New submission from Marko Nervo : I think it would be very usefull to add a curry function to the functools module. It should be like this. def curry(func, *args, **kwargs): if (len(args) + len(kwargs)) >= func.__code__.co_argcount: return func(*args, **kwargs) return (lambd

[issue13358] HTMLParser incorrectly handles cdata elements.

Roundup Robot added the comment: New changeset 91163aa3d5b4 by Ezio Melotti in branch '2.7': #13358: HTMLParser now calls handle_data only once for each CDATA. http://hg.python.org/cpython/rev/91163aa3d5b4 New changeset 0a32e7e3aa1f by Ezio Melotti in branch '3.2': #13358: HTMLParser now calls

[issue13358] HTMLParser incorrectly handles cdata elements.

Ezio Melotti added the comment: This should be fixed now, let me know if you find other problems with the parser. -- resolution: -> fixed stage: commit review -> committed/rejected status: open -> closed ___ Python tracker

[issue13430] Add a curry function to the functools module

Ezio Melotti added the comment: This sounds similar to http://wiki.python.org/moin/PythonDecoratorLibrary#Pseudo-currying Do you have a concrete use case for this? -- nosy: +ezio.melotti versions: +Python 3.3 -Python 2.7, Python 3.4 ___ Python trac

[issue13430] Add a curry function to the functools module

Antoine Pitrou added the comment: You can use functools.partial for similar effect. Not sure what a dedicated curry() primitive would improve. -- nosy: +pitrou ___ Python tracker _

[issue13430] Add a curry function to the functools module

Alex Gaynor added the comment: This already exists, as functools.partial: http://docs.python.org/library/functools.html#functools.partial -- nosy: +alex resolution: -> invalid status: open -> closed ___ Python tracker

[issue13429] provide __file__ to extension init function

Changes by Stefan Behnel : -- keywords: +patch nosy: +loewis Added file: http://bugs.python.org/file23725/ext_module_init_file_path.patch ___ Python tracker ___ _

[issue9614] _pickle is not entirely 64-bit safe

Changes by Ezio Melotti : -- nosy: +brian.curtin stage: -> patch review ___ Python tracker ___ ___ Python-bugs-list mailing list Unsub

[issue13429] provide __file__ to extension init function

Stefan Behnel added the comment: Here is an extension to the patch that implements the protocol also for extension module reinitialisation, so that the module creation can also set __file__ and the proper package in that case. Currently without tests (and users, I guess). -- Added fi

[issue3430] httplib.HTTPResponse documentations inconsistent

Changes by Ezio Melotti : -- nosy: +ezio.melotti resolution: accepted -> versions: +Python 3.3 -Python 2.6, Python 3.1 ___ Python tracker ___

[issue10469] test_socket fails using Visual Studio 2010

Sébastien Sablé added the comment: I can also confirm that this patch corrects the problem with test_asyncore for Python 2.7 built with VS2010. -- nosy: +sable ___ Python tracker _

[issue11112] UDPTimeoutTest derives from SocketTCPTest

Roundup Robot added the comment: New changeset 0fdf7f7c353d by Ezio Melotti in branch '2.7': #2: Fix typo in a base class in test_socket. http://hg.python.org/cpython/rev/0fdf7f7c353d New changeset b410bcd300a1 by Ezio Melotti in branch '3.2': #2: Fix typo in a base class in test_socket

[issue10469] test_socket fails using Visual Studio 2010

Brian Curtin added the comment: FYI: this would likely be handled through #13210. I have a conversion sandbox started at http://hg.python.org/sandbox/vs2010port/ and am working through fixing test failures after the initial conversion. -- ___ Pytho

[issue11112] UDPTimeoutTest derives from SocketTCPTest

Ezio Melotti added the comment: Fixed, thanks for the report! -- assignee: -> ezio.melotti nosy: +ezio.melotti resolution: -> fixed stage: needs patch -> committed/rejected status: open -> closed versions: -Python 3.1 ___ Python tracker

[issue11107] Cache constant "slice" instances

Changes by Ezio Melotti : -- stage: -> needs patch ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail

[issue13210] Support Visual Studio 2010

Brian Curtin added the comment: I mentioned this on another issue, but I created a clone at http://hg.python.org/sandbox/vs2010port/. I've already gone through the port in the past but wasn't able to release the code at the time. As I work through it, I'll occasionally announce large mileston

[issue13210] Support Visual Studio 2010

Tim Golden added the comment: Thanks. I was going to ask about this to see if anyone had already done the legwork. -- nosy: +tim.golden ___ Python tracker ___ _

[issue10980] http.server Header Unicode Bug

Ezio Melotti added the comment: Now it's too late for 3.1, should this still go to 2.7? -- nosy: +ezio.melotti versions: -Python 3.1 ___ Python tracker ___

[issue10980] http.server Header Unicode Bug

Benjamin Peterson added the comment: Please. -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.py

[issue13430] Add a curry function to the functools module

Marko Nervo added the comment: In [1]: import functools In [2]: def adder(x, y, z): ...: return (x + y + z) ...: In [3]: adder = functools.partial(adder) In [4]: adder(2)(3)(4) --- TypeError

[issue13387] suggest assertIs(type(obj), cls) for exact type checking

Ezio Melotti added the comment: Fixed. -- assignee: docs@python -> ezio.melotti resolution: -> fixed stage: needs patch -> committed/rejected status: open -> closed versions: +Python 2.7, Python 3.2 ___ Python tracker

[issue13430] Add a curry function to the functools module

Éric Araujo added the comment: To go back to your original message: > I think it would be very usefull to add a curry function to the functools > module. For what use cases? > Curried functions could be used as follow. >>> adder(2, 3, 4) >>> adder(2, 3)(4) >>> adder(2)(3)(4) >>> adder(z = 4)

[issue13387] suggest assertIs(type(obj), cls) for exact type checking

Roundup Robot added the comment: New changeset fd9d7a8e45bc by Ezio Melotti in branch '2.7': #13387: add note about checking the exact type in assertIsInstance doc. http://hg.python.org/cpython/rev/fd9d7a8e45bc New changeset 583aff635ce1 by Ezio Melotti in branch '3.2': #13387: add note about c

[issue2286] Stack overflow exception caused by test_marshal on Windows x64

Sébastien Sablé added the comment: I had the exact same problem when compiling the Python 2.7 branch with Visual Studio 2010. In debug mode and 64 bits, python will crash on test_loads_recursion in test_marshal and on the code provided in msg63536. Could you please reopen this issue? --

[issue10227] Improve performance of MemoryView slicing

Stefan Behnel added the comment: Updated single slice caching patch for latest Py3.3 hg tip. -- Added file: http://bugs.python.org/file23727/slice-object-cache.patch ___ Python tracker

[issue13387] suggest assertIs(type(obj), cls) for exact type checking

Éric Araujo added the comment: + To check for a specific type (without including superclasses) use + :func:`assertIs(type(obj), cls) `. Don’t you mean “without accepting subclasses”, not superclasses? -- ___ Python tracker

[issue13430] Add a curry function to the functools module

Ezio Melotti added the comment: FWIW there is a somewhat related thread that proposed a new syntax for curried functions: http://mail.python.org/pipermail/python-ideas/2009-March/003220.html -- stage: -> committed/rejected ___ Python tracker

[issue13429] provide __file__ to extension init function

Amaury Forgeot d'Arc added the comment: I suppose that the value of _Py_ModuleImportContext is protected by the import lock? -- nosy: +amaury.forgeotdarc ___ Python tracker ___

[issue13387] suggest assertIs(type(obj), cls) for exact type checking

Ezio Melotti added the comment: > + To check for a specific type (without including superclasses) use > + :func:`assertIs(type(obj), cls) `. > > Don’t you mean “without accepting subclasses”, not superclasses? I mean: >>> class MyInt(int): pass # my specific type ... >>> isinstance(MyInt(5)

[issue10980] http.server Header Unicode Bug

Armin Ronacher added the comment: 2.7 does not suffer from this since 2.7 does not support unicode in headers. -- ___ Python tracker ___

[issue13404] Add support for system.methodSignature() to XMLRPC Server

Changes by Éric Araujo : -- nosy: +eric.araujo ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.pyth

[issue2286] Stack overflow exception caused by test_marshal on Windows x64

Sébastien Sablé added the comment: I don't have the issue anymore when bumping the stack size to 230. -- ___ Python tracker ___ __

[issue13397] Option for XMLRPC clients to automatically transform Fault exceptions into standard exceptions

Changes by Éric Araujo : -- nosy: +eric.araujo ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.pyth

[issue2286] Stack overflow exception caused by test_marshal on Windows x64

Changes by Brian Curtin : -- components: +Windows nosy: +brian.curtin status: closed -> open ___ Python tracker ___ ___ Python-bugs-lis

[issue13429] provide __file__ to extension init function

Stefan Behnel added the comment: I don't know how the import lock applies here. Would it have to be protected by it? The lifetime is restricted to the call of the extension module init function, and its value is saved recursively if the init function triggers further imports. It works exactl

[issue13429] provide __file__ to extension init function

Amaury Forgeot d'Arc added the comment: But the GIL can be released in many places (e.g. a Py_DECREF), and another thread can enter the same function and update the same static variable. -- ___ Python tracker ___

[issue13430] Add a curry function to the functools module

Marko Nervo added the comment: I totally disagree with the syntax for curried function, but I think a curry function is perfect for the functools module and I also think it could be useful at least as functools.partial. In addition, a lot of languages support currying, such as Haskell, Scala,

[issue13430] Add a curry function to the functools module

Antoine Pitrou added the comment: > However, here an example less confusional > > >>> adder = curry(lambda (x, y): (x + y)) > >>> adder3 = adder(3) > >>> adder3(4) > 7 > >>> adder3(5) > 8 > > Currying let you defining new functions on other functions. But so does functools.partial. So the que

[issue13430] Add a curry function to the functools module

Ezio Melotti added the comment: In that thread Guido said: """ Haskell has this too, perhaps even more extreme: there's not really such a thing in Haskell as a function of N arguments (N > 1). "f a b = ..." defines a function f of one argument a which returns another function ("f a") of one argu

[issue10227] Improve performance of MemoryView slicing

Roundup Robot added the comment: New changeset fa2f8dd077e0 by Antoine Pitrou in branch 'default': Issue #10227: Add an allocation cache for a single slice object. http://hg.python.org/cpython/rev/fa2f8dd077e0 -- nosy: +python-dev ___ Python tracker

[issue10227] Improve performance of MemoryView slicing

Antoine Pitrou added the comment: Thanks Stefan. I'm leaving the issue open since the original topic is a bit different. -- ___ Python tracker ___ _

[issue13322] buffered read() and write() does not raise BlockingIOError

Antoine Pitrou added the comment: Thanks. Who should I credit? "sbt"? -- ___ Python tracker ___ ___ Python-bugs-list mailing list Uns

[issue9614] _pickle is not entirely 64-bit safe

Antoine Pitrou added the comment: This issue is obsolete, there are no 64-bit warnings in _pickle.c anymore. See issue 11564. -- resolution: -> out of date stage: patch review -> committed/rejected status: open -> closed ___ Python tracker

[issue13430] Add a curry function to the functools module

Marko Nervo added the comment: > But so does functools.partial. So the question is, what use case does it > help that functools.partial doesn't? Sure, it's common `defining new functions on other functions`... more times. Here a stupid example with fold (our reduce). @curry def fold(function

[issue13430] Add a curry function to the functools module

Antoine Pitrou added the comment: > Sure, it's common `defining new functions on other functions`... more > times. Here a stupid example with fold (our reduce). > > @curry > def fold(function, start, sequence): > if len(sequence) == 0: > return start > else: > return fol

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