Mailman 3 November 2010 - Python-Dev

Re: [Python-Dev] [Python-checkins] r86748 - in python/branches/py3k-urllib/Lib: http/client.py urllib/request.py
by Éric Araujo Nov. 25, 2010

Nov. 25, 2010

> Author: senthil.kumaran > New Revision: 86748 > > Log: > Experimental - Transparent gzip Encoding in urllib2. There should be a good way to deal with Content-Length. Cool feature! But... > Modified: > python/branches/py3k-urllib/Lib/http/client.py > python/branches/py3k-urllib/Lib/urllib/request.py No tests? Misc/NEWS? :) Regards

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Re: [Python-Dev] r86731 - in python/branches/py3k: Lib/distutils/command/install.py Lib/distutils/sysconfig.py Lib/sysconfig.py Makefile.pre.in Misc/python.pc.in configure configure.in
by Antoine Pitrou Nov. 24, 2010

Nov. 24, 2010

On Wed, 24 Nov 2010 20:43:47 +0100 (CET) barry.warsaw <python-checkins(a)python.org> wrote: > Author: barry.warsaw > Date: Wed Nov 24 20:43:47 2010 > New Revision: 86731 > > Log: > Final patch for issue 9807. This seems to have broken compilation under Windows: Build started: Project: ssl, Configuration: Debug|Win32 Performing Makefile project actions Traceback (most recent call last): File "d:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\site.py", line … [View More]

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collect2: library libpython2.6 not found while building extensions (--enable-shared)
by Anurag Chourasia Nov. 24, 2010

Nov. 24, 2010

All, When I configure python to enable shared libraries, none of the extensions are getting built during the make step due to this error. building 'cStringIO' extension gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I. -I/u01/home/apli/wm/GDD/Python-2.6.6/./Include -I. -IInclude -I./Include -I/opt/freeware/include -I/opt/freeware/include/readline -I/opt/freeware/include/ncurses -I/usr/local/include -I/u01/home/apli/wm/GDD/Python-2.6.6/Include -I/… [View More]

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Fwd: constant/enum type in stdlib
by Joao S. O. Bueno Nov. 24, 2010

Nov. 24, 2010

Hi -- If I may add my 0.02 cents - this sample has a sample implementation of the proposed features I found most interesting up to now: 1) inherit from int 2) display the constant's name on 'repr' 3) optionally populate a module with the constants 4) Optionally provide a starting value for the enum 5) Optionally provide a mapping with the values http://pastebin.com/6f1u35qJ (implementation is in python 2) Todo here: 6) Make them "read only" 7) Make the base type optional, with "int" as … [View More]

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Re: [Python-Dev] r86726 - python/branches/release27-maint/Objects/setobject.c
by Antoine Pitrou Nov. 24, 2010

Nov. 24, 2010

On Wed, 24 Nov 2010 11:39:23 +0100 (CET) armin.rigo <python-checkins(a)python.org> wrote: > Author: armin.rigo > Date: Wed Nov 24 11:39:23 2010 > New Revision: 86726 > > Log: > A no-op change. It looks like this call was not meant to be a recursive > call, but just call the helper (which the recursive call ends up doing). Since it's allegedly a no-op change, it doesn't come with a test, and 2.7.1 is in rc phase, is it really the right time to do it? What is the … [View More]

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http.server - reference to bug #427345
by Glenn Linderman Nov. 24, 2010

Nov. 24, 2010

Where might I find the bug #427345 that is referred to in a comment inside http.server ? Here is a code excerpt: # throw away additional data [see bug #427345] while select.select([self.rfile._sock], [], [], 0)[0]: if not self.rfile._sock.recv(1): break

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Centos 5.5 freeze during test_concurrent_futures
by Łukasz Langa Nov. 24, 2010

Nov. 24, 2010

Hi there! py3k built from trunk on Centos 5.5 freezes during regrtest on test_concurrent_futures with "Fatal Python error: Invalid thread state for this thread". As in a typical concurrent problem, subsequent calls freeze in different test cases, but the freeze itself is always reproducible and always during this test. A colorful example: http://bpaste.net/show/11493/ I created an issue for that here: http://bugs.python.org/issue10517 If necessary, I can provide Centos 5.5 shell access. I … [View More]

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Web servers, bytes, str, documentation, Python 3.2a4
by Glenn Linderman Nov. 24, 2010

Nov. 24, 2010

So maybe this is the wrong forum, if so please tell me what the right forum is for each of the various pieces. I'm assuming that I should file some bugs in the tracker, but I'm not exactly sure whether to file them on cgitb, http.server, or subprocess, or all of the above. Pretty sure there are at least some in http.server, but maybe some of those will be considered "enhancement requests" since they are long outstanding in the predecessor code. So I've been writing CGI scripts in … [View More]Python behind Apache. No framework, just raw CGI. Got everything working on Python 2.6 (it's the newest that the hosting company has). Whacked at 2.6's CGIHTTPServer.py until I got an environment that would actually run CGI programs in the same sort of way that Apache does, so I can test faster, locally. Got the site working. Am happy. Now I decided to tackle porting the code to Python 3, in hopes that someday the hosting company might have it, and to see what I could learn about the "Subject:" matters, and to altruistically see if 3.2a4 has a consistent story. Um. Well. Some of me, Python 3.2a4, or its documentation is missing something. Maybe several somethings. Here's some code to ponder. import sys import traceback sys.stdout = open("sob", "wb") # WSGI sez data should be binary, so stdout should be binary??? import cgitb sys.stdout.write(b"out") fhb = open("fhb", "wb") cgitb.enable(0,"d:\temp") fhb.write("abcdef") # try writing non-binary to binary file. Expect an error, of course. Feed it to python32... d:\temp>c:\python32\python.exe test11.py Error in sys.excepthook: TypeError: 'str' does not support the buffer interface Original exception was: Traceback (most recent call last): File "d:\my\py\test11.py", line 8, in <module> fhb.write("abcdef") # try writing non-binary to binary file. Expect an err or, of course. TypeError: 'str' does not support the buffer interface So it seems that cgitb can't write to binary files, to report the error? Or how else should I interpret the Error in sys.excepthook ? So then I tweaked the code for cgitb's enjoyment: import sys import traceback sys.stdout = open("sob", "w", encoding="UTF-8") # WSGI sez data should be binary, so stdout should be binary??? import cgitb sys.stdout.write("out") fhb = open("fhb", "wb") cgitb.enable(0,"d:\temp") fhb.write("abcdef") # try writing non-binary to binary file. Expect an error, of course. Now I get the following report in the stdout file: out <body bgcolor="#f0f0f8"><font color="#f0f0f8" size="-5"> --> --> </font> </font> </font> </script> </object> </blockquote> </pre> </table> </table> </table> </table> </table> </font> </font> </font><p>A problem occurred in a Python script. and the following error on the console: d:\temp>c:\python32\python.exe test12.py Error in sys.excepthook: Traceback (most recent call last): File "c:\python32\lib\tempfile.py", line 209, in _mkstemp_inner fd = _os.open(file, flags, 0o600) OSError: [Errno 22] Invalid argument Original exception was: Traceback (most recent call last): File "d:\my\py\test12.py", line 8, in <module> fhb.write("abcdef") # try writing non-binary to binary file. Expect an error, of course. TypeError: 'str' does not support the buffer interface I was expecting see a whole cgitb in sob, but no such luck. Not sure why it is trying to create a temporary file, but it seems to fail to do that. Of course, the next test, would have been to write binary data into fhb, and try to copy it to stdout, which would fail, because stdout has to not be binary to make cgitb work??? That brings me to http.server, the 3.2a4 replacement for CGIHTTPServer. There are definitely some improvements here, and some reported-but-yet-unfixed bugs. And some pitiful missing features, especially on Windows. I applied some of the whacks I had applied to CGIHTTPServer, and got some things working, but, per what I was trying to demonstrate above, there seems to be an incompatibility with the idea of using cgitb (which wants stdout open with some encoding provided) and serving binary files (which wants stdout open in binary) [this latter is supported by the WSGI spec too]. So it seems to be that there are some problems. Yet, it seems that http.server can some accept the data sent by cgitb, which comes from subprocess running my CGI script, but my CGI script fails to be able to copy a binary file to its stdout (a subprocess created PIPE). The subprocess documentation doesn't say what encoding is supplied to the PIPE-created handles, if any, but since cgitb data is accepted but binary file data is not, I infer it must be a non-binary handle, encoding unknown. The subprocess documentation doesn't document any way to specify what encoding should be used on the PIPE-created handles, either. So this isn't very enlightening. In the absence of a specification or parameter, I would have expected the PIPEs to be binary, but this seems to be experimentally false. Yet http.server, when serving plain files, seems to open them in binary mode, and transfer them successfully to the browser. And it can also accept the non-binary?? data from cgitb from my CGI script, and display it in the browser. The former comes from a file it opens in binary mode, and the latter from the subprocess PIPE in unknown mode. It seems that the socketfile.server opens the socket in "wb" mode, and encodes most data. That in turn, seems to imply that the binary data from SimpleHTTPServer files are reasonably returned, and I note the headers and such are expliticly encoded before being written to wfile... again, consistent with the socket, wfile, being in binary mode. But the data coming back from the subprocess PIPE from my CGI script seems to be acceptable to be written to wfile also, implying that the PIPEs are binary, like the absence of specifications and parameters and knowledge of pipes as being bytestreams would be expected. But then, it would seem that the cgitb output should be in binary to get into the PIPE, but it seems that using a binary stdout makes cgitb fail, in the above experiment... and I can't find any code in cgitb that does explicit encoding. So I'm confused, and it seems a little extra documentation might help decide which are the modules that have bugs or missing features, and which do not. One of the cgitb outputs from my attempt to serve the binary file claims that my CGI script's output file (which comes from a subprocess PIPE) is a TextIOWrapper with encoding cp1252. Maybe that is the default that comes when a new Python is launched, even though it gets a subprocess PIPE as stdout? [View Less]

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Sporadic problems with bugs.python.org
by Jesus Cea Nov. 24, 2010

Nov. 24, 2010

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Happen to me last Sunday, and happening just now. I can access http://bugs.python.org/ just fine, but trying to post a message, open a new bug, change nosy, etc., takes a LONG time (minutes) and it is finally failing with a "400 Bad Request" error: """ Bad Request Your browser sent a request that this server could not understand. Apache/2.2.9 (Debian) mod_python/3.3.1 Python/2.5.2 mod_ssl/2.2.9 OpenSSL/0.9.8g mod_wsgi/2.5 Server at bugs.python.… [View More]

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is this a bug? no environment variables
by Glenn Linderman Nov. 23, 2010

Nov. 23, 2010

In reviewing my notes from my experimentations with CGIHTTPServer (Python2.6) and then http.server (Python 3.2a4), I note one behavior I haven't reported as a bug, nor do I know where to start to figure it out, other than experimentally. The experiment: launching CGIHTTPServer without environment variables, by the simple expedient of using a batch file to unset all the existing environment variables, and then launching Python2.6 with CGIHTTPServer. So it failed early: random.py fails at … [View More]

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