Mailman 3 September 2012 - Twisted

[Twisted-Python] Getting deprecation warnings?
by Laurens Van Houtven Sept. 5, 2012

Sept. 5, 2012

Hey, What is the appropriate way to run twistd apps in such a way that I get nice and loud deprecation warnings? I ran into an issue with one of my apps with the new release because t.w.error.NoResource is now t.w.resource.NoResource, I would like to make my code as forward compatible as possible as we go along, of course :) (Actually this issue was because I stole some non-released code from #4173, which wasn't being tested, but the not being tested part is now fixed.) -- cheers lvh

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[Twisted-Python] Profiling problem: "bad marshal data"
by Peter Westlake Sept. 5, 2012

Sept. 5, 2012

When I pass twistd the --savestats option to save profile information as a pstats.Stats object instead of a textual report, the output file cannot be read: import pstats p = pstats.Stats(filename) gives: ValueError: bad marshal data (unknown type code) An output file generated with cProfile.run() can be read. Running twistd without --savestats generates a valid-looking textual report. This is Python 2.7.3, Twisted 12.0.0, on Debian. Peter.

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[Twisted-Python] tap2deb problem with building package
by Klaudiusz Staniek Sept. 4, 2012

Sept. 4, 2012

Hi when I try to build the deb package I'm getting the error message: cp: cannot create regular file `debian/tmp/etc/': No such file or directory What is wrong? See below output: Cheers, Klaudiusz tap2deb --unsigned -m "Klaudiusz Staniek <kstaniek(a)gmail.com>" --type=python -t xplhub.tac dpkg-buildpackage: set CFLAGS to default value: -g -O2 dpkg-buildpackage: set CPPFLAGS to default value: dpkg-buildpackage: set LDFLAGS to default value: -Wl,-Bsymbolic-functions dpkg-buildpackage: set FFLAGS to default value: -g -O2 dpkg-buildpackage: set CXXFLAGS to default value: -g -O2 dpkg-buildpackage: source package twisted-xplhub dpkg-buildpackage: source version 1.0 dpkg-buildpackage: source changed by Klaudiusz Staniek <kstaniek(a)gmail.com> dpkg-buildpackage: host architecture armel fakeroot debian/rules clean dh_testdir dh_testroot rm -f build-stamp install-stamp dh_clean dpkg-source -b twisted-xplhub-1.0 dpkg-source: info: using source format `1.0' dpkg-source: info: building twisted-xplhub in twisted-xplhub_1.0.tar.gz dpkg-source: info: building twisted-xplhub in twisted-xplhub_1.0.dsc debian/rules build dh_testdir touch build-stamp fakeroot debian/rules binary dh_testdir dh_testroot dh_clean -k dh_installdirs # Add here commands to install the package into debian/tmp. cp xplhub.tac debian/tmp/etc/ cp: cannot create regular file `debian/tmp/etc/': No such file or directory make: *** [install-stamp] Error 1 dpkg-buildpackage: error: fakeroot debian/rules binary gave error exit status 2

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[Twisted-Python] Twisted 12.2.0 released
by Ashwini Oruganti Sept. 3, 2012

Sept. 3, 2012

On behalf of Twisted Matrix Laboratories, I am honored to announce the release of Twisted 12.2. Highlights for this release include: * To be able to work on Python3 support, Python 2.5 is no longer supported. * twisted.mail.imap4 now serves BODYSTRUCTURE responses which provide more information and conform to the IMAP4 RFC more closely. * twisted.conch now supports commercial SSH implementations which don't comply with the IETF standard. * twisted.internet.endpoints now provides several new endpoints, including a TCP client endpoint that resolves hostnames to IPv6 host addresses. * IReactorSocket.adoptStreamConnection, implemented by some reactors, allows adding an existing established connection to the reactor. Starting with the release after 12.2, Twisted will begin requiring zope.interface 3.6 (as part of Python 3 support). This is the last Twisted release supporting Python 2.6 on Windows. For more information, see the NEWS file here: http://twistedmatrix.com/Releases/Twisted/12.2/NEWS.txt Download it now from: http://pypi.python.org/packages/source/T/Twisted/Twisted-12.2.0.tar.bz2 or http://pypi.python.org/packages/2.6/T/Twisted/Twisted-12.2.0.win32-py2.6.exe or http://pypi.python.org/packages/2.6/T/Twisted/Twisted-12.2.0.win32-py2.6.msi or http://pypi.python.org/packages/2.7/T/Twisted/Twisted-12.2.0.win32-py2.7.exe or http://pypi.python.org/packages/2.7/T/Twisted/Twisted-12.2.0.win32-py2.7.msi Thanks to the supporters of Twisted and to the many contributors for this release. -- Ashwini Oruganti

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com Sept. 1, 2012

Sept. 1, 2012

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[Twisted-Python] blocking code alongside with Twisted
by Shuai Lin Aug. 31, 2012

Aug. 31, 2012

Hi all, My server mainly consists of two modules: -- http api handling (using twisted) -- backend blocking tasks The backend tasks have to block, because I have to call some third-party API, which is always blocking. What's more, since the third-party api call is blocking, I plan to use a thread pool to implement a connection pool. My question is: Is it ok to use twisted in this manner? i.e. I just run `reactor.run()' in the main thread (to handle the http api request), and the rest of the program is blocking -- and intrinsically not related to twisted. Any suggestion is appreciated. Thanks! Lin

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