You might be easily mislead into thinking that this code
try:
eggs()
except IOError, OSError:
pass
will catch both IOError and OSError exceptions. In fact, it will not, as
it is more or less equivalent to:
try:
eggs()
except IOError, ex:
OSError = ex # Whoo, overwrite the built-in name
There are about 50 packages in the archive whose developers make this
kind of mistake. I have attached log file and dd-list. I'm not willing
to do MBF, but if someone else is, please feel free to use my data.
-- Jakub Wilk
Adam Cécile (Le_Vert) <gandalf@le-vert.net> hellanzb Tim Abbott <tabbott@mit.edu> sagemath Rahul Amaram <rahul@amaram.name> python-twisted-calendarserver python-twisted-calendarserver (U) David Andel <andel@ailab.ch> uligo Kumar Appaiah <akumar@ee.iitm.ac.in> harvestman (U) Luciano Bello <luciano@debian.org> w3af-console Bastian Blank <waldi@debian.org> xen-utils-4.0 (U) Andreas Bombe <aeb@debian.org> anki Joachim Breitner <nomeata@debian.org> fso-frameworkd (U) Luca Bruno <lucab@debian.org> uzbl (U) Calendarserver Maintainers <calendarserver-maintainers@lists.alioth.debian.org> python-vobject Luca Capello <luca@pca.it> fso-frameworkd (U) Sargis Dallakyan <sargis@scripps.edu> mgltools-molkit (U) Julien Danjou <acid@debian.org> mbot xen-utils-4.0 (U) Debian freesmartphone.org Team <pkg-fso-maint@lists.alioth.debian.org> fso-frameworkd Debian Multimedia Maintainers <pkg-multimedia-maintainers@lists.alioth.debian.org> idjc Debian Python Modules Team <python-modules-team@lists.alioth.debian.org> python-apptools python-enable python-nose (U) Debian Xen Team <pkg-xen-devel@lists.alioth.debian.org> xen-utils-4.0 Debian-Med Packaging Team <debian-med-packaging@lists.alioth.debian.org> mgltools-molkit Sebastian Dröge <slomo@debian.org> pitivi (U) Free Ekanayaka <freee@debian.org> idjc (U) python-twisted-core (U) Alexandre Fayolle <afayolle@debian.org> spambayes Devid Antonio Filoni <d.filoni@ubuntu.com> emesene (U) Morten Werner Forsbring <werner@debian.org> python-sss (U) Freevo Debian Dream Team <pkg-freevo-maint@lists.alioth.debian.org> python-freevo Cristian Greco <cristian@regolo.cc> deluge-common deluge-gtk Guido Günther <agx@sigxcpu.org> python-vobject (U) Wen Heping <wenheping@gmail.com> python-tables Varun Hiremath <varun@debian.org> python-apptools (U) python-enable (U) Philipp Huebner <debalance@debian.org> anyremote2html ganyremote kanyremote Philipp Kern <pkern@debian.org> python-pydhcplib Julian Andres Klode <jak@debian.org> python-aptdaemon Matthias Klose <doko@debian.org> python-twisted-core qmtest Ondřej Kuzník <ondra@mistotebe.net> quodlibet-plugins (U) Chris Lamb <lamby@debian.org> python-django-treebeard rst2pdf Chris Lawrence <lawrencc@debian.org> python-reportbug (U) Thomas Leonard <talex5@gmail.com> zeroinstall-injector Georg W. Leonhardt <leonhardt@geole.info> python-freevo (U) Maintainers of GStreamer packages <pkg-gstreamer-maintainers@lists.alioth.debian.org> moovida-plugins-ugly Torsten Marek <shlomme@debian.org> python-nose (U) A Mennucc1 <mennucc1@debian.org> python-freevo (U) Loic Minier <lool@dooz.org> moovida-plugins-ugly (U) pitivi Steffen Moeller <moeller@debian.org> mgltools-molkit (U) Emilio Pozuelo Monfort <pochu@debian.org> emesene Sam Morris <sam@robots.org.uk> pymsnt Toni Mueller <toni@debian.org> roundup Xavier Oswald <xoswald@debian.org> magicor Anand Pillai <abpillai@gmail.com> harvestman (U) Python Applications Packaging Team <python-apps-team@lists.alioth.debian.org> emesene (U) harvestman pyaimt (U) pyicqt (U) scribes (U) Arnaud Quette <aquette@debian.org> moovida-plugins-ugly (U) Petter Reinholdtsen <pere@debian.org> python-sss Reportbug Maintainers <reportbug-maint@lists.alioth.debian.org> python-reportbug Patrick Ringl <patrick_@freenet.de> pyicqt (U) Stefan Ritter <xeno@thehappy.de> uzbl Miriam Ruiz <little_miry@yahoo.es> treeline Filippo Rusconi <rusconi-debian@laposte.net> mmass (U) Chris Silva <racerx@makeworld.com> scribes Gustavo Noronha Silva <kov@debian.org> python-nose Jonas Smedegaard <dr@jones.dk> python-swap Jose Carlos Garcia Sogo <jsogo@debian.org> conduit Christine Spang <christine@debian.org> quodlibet-plugins Reinhard Tartler <siretart@tauware.de> idjc (U) The Debichem Group <debichem-devel@lists.alioth.debian.org> mmass Paul van Tilburg <paulvt@debian.org> moovida-plugins-ugly (U) Sandro Tosi <morph@debian.org> python-reportbug (U) Alessio Treglia <alessio@debian.org> idjc (U) Guido Trotter <ultrotter@debian.org> xen-utils-4.0 (U) Daiki Ueno <ueno@unixuser.org> ibus-skk Julien Valroff <julien@kirya.net> ajaxterm Frederic Wagner <wagnerf@imag.fr> magicor (U) Erik Wenzel <erik@debian.org> dynagen gns3 Jonathan Wiltshire <debian@jwiltshire.org.uk> rednotebook Michal Čihař <nijel@debian.org> pyaimt pyicqt
ajaxterm_0.10-6 IOError /usr/share/ajaxterm/qweb.py:855 ajaxterm_0.10-6 IOError /usr/share/ajaxterm/qweb.py:872 anki_0.9.9.8.6-2.1 OSError /usr/share/anki/anki/sync.py:1166 anyremote2html_1.3-1 NameError /usr/bin/anyremote2html:371 conduit_0.3.17-1 TypeError /usr/share/pyshared/conduit/SyncSet.py:213 deluge-common_1.2.3+git20100712.0b609bf-1 ValueError /usr/share/pyshared/deluge/core/torrentmanager.py:542 deluge-gtk_1.2.3+git20100712.0b609bf-1 TypeError /usr/share/pyshared/deluge/ui/gtkui/torrentview.py:448 dynagen_0.11.0-5 AttributeError /usr/share/pyshared/confConsole.py:922 emesene_1.6.3-1 TypeError /usr/share/emesene/plugins_base/NotifyOsdImproved.py:453 fso-frameworkd_0.8.5.1-1 IOError /usr/share/pyshared/framework/subsystems/ogsmd/helpers.py:151 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:542 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:923 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:1091 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:1706 ganyremote_5.11.5-1 AttributeError /usr/bin/ganyremote:2350 ganyremote_5.11.5-1 AttributeError /usr/bin/ganyremote:2394 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:3649 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:3656 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:3735 ganyremote_5.11.5-1 AttributeError /usr/bin/ganyremote:3744 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4276 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4389 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4396 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4419 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4430 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4440 ganyremote_5.11.5-1 NameError /usr/bin/ganyremote:4450 gns3_0.7.2-1 AttributeError /usr/share/pyshared/GNS3/Dynagen/confConsole.py:952 harvestman_2.0~alpha20022008-2 TypeError /usr/share/pyshared/harvestman/lib/urlqueue.py:675 harvestman_2.0~alpha20022008-2 TypeError /usr/share/pyshared/harvestman/lib/urlqueue.py:686 hellanzb_0.13-6.1 ValueError /usr/share/pyshared/Hellanzb/NewzbinDownloader.py:135 ibus-skk_0.0.9-1 AssertionError /usr/share/ibus-skk/engine/skk.py:722 ibus-skk_0.0.9-1 UnicodeDecodeError /usr/share/ibus-skk/engine/skk.py:1332 idjc_0.8.3-1 IOError /usr/share/pyshared/idjcgui.py:1892 idjc_0.8.3-1 TypeError /usr/share/pyshared/idjc/IDJCfree.py:65 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:1282 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:1366 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:1505 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:1735 kanyremote_5.11.7-1 KeyError /usr/bin/kanyremote:2821 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:2968 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:3255 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:3271 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:3907 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:3920 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:3933 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:3995 kanyremote_5.11.7-1 NameError /usr/bin/kanyremote:4029 magicor_1.1-3 IndexError /usr/share/pyshared/magicor/sprites/stones.py:35 mbot_0.3-7 SyntaxError /usr/share/mbot/modules/NewsHandler.py:47 mgltools-molkit_1.5.4.cvs.20090603-1.1 IndexError /usr/share/pyshared/MolKit/pdb2pqr/pdb.py:369 mgltools-molkit_1.5.4.cvs.20090603-1.1 IndexError /usr/share/pyshared/MolKit/pdb2pqr/pdb.py:496 mgltools-molkit_1.5.4.cvs.20090603-1.1 NameError /usr/share/pyshared/MolKit/pdb2pqr/src/protein.py:188 mgltools-molkit_1.5.4.cvs.20090603-1.1 IndexError /usr/share/pyshared/MolKit/pdb2pqr/src/pdb.py:417 mgltools-molkit_1.5.4.cvs.20090603-1.1 IndexError /usr/share/pyshared/MolKit/pdb2pqr/src/pdb.py:685 mmass_2.4.0-4 TypeError /usr/share/mmass/modules/mimport/document_mmass.py:266 moovida-plugins-ugly_1.0.9+bzr1614-1 AttributeError /usr/share/pyshared/elisa/plugins/youtube/resource_provider.py:152 moovida-plugins-ugly_1.0.9+bzr1614-1 AttributeError /usr/share/pyshared/elisa/plugins/youtube/resource_provider.py:162 pitivi_0.13.4-3 OSError /usr/lib/pitivi/python/pitivi/settings.py:212 pyaimt_0.8.0.1-2 TypeError /usr/share/pyaimt/src/register.py:153 pyaimt_0.8.0.1-2 TypeError /usr/share/pyaimt/src/register.py:232 pyaimt_0.8.0.1-2 UnicodeDecodeError /usr/share/pyaimt/src/xdb/xmlfiles.py:352 pyicqt_0.8.1.5-3 TypeError /usr/share/pyicqt/src/register.py:153 pyicqt_0.8.1.5-3 TypeError /usr/share/pyicqt/src/register.py:232 pyicqt_0.8.1.5-3 UnicodeDecodeError /usr/share/pyicqt/src/xdb/xmlfiles.py:448 pymsnt_0.11.3-5 TypeError /usr/share/pymsnt/src/register.py:126 python-apptools_3.3.2-1 NotImplementedError /usr/share/doc/python-apptools/examples/permissions/server/server.py:549 python-aptdaemon_0.31+bzr413-1 IndexError /usr/share/pyshared/aptdaemon/progress.py:504 python-django-treebeard_1.61-1 KeyError /usr/share/pyshared/treebeard/models.py:558 python-enable_3.3.1-1 SystemExit /usr/share/pyshared/enthought/enable/toolkit.py:39 python-enable_3.3.1-1 SystemExit /usr/share/pyshared/enthought/savage/traits/ui/toolkit.py:34 python-freevo_1.9.0-4 SystemExit /usr/share/pyshared/freevo/helpers/passwd.py:43 python-nose_0.11.1-1 SystemExit /usr/share/pyshared/nose/plugins/multiprocess.py:493 python-pydhcplib_0.6.2-2 TypeError /usr/share/pyshared/pydhcplib/dhcp_packet.py:146 python-reportbug_4.12.4 OSError /usr/share/pyshared/reportbug/utils.py:864 python-sss_1.2.1-1 KeyError /usr/share/pyshared/SSSDConfig.py:289 python-sss_1.2.1-1 KeyError /usr/share/pyshared/SSSDConfig.py:308 python-sss_1.2.1-1 KeyError /usr/share/pyshared/SSSDConfig.py:323 python-swap_1.2.1-4.1 AssertionError /usr/share/pyshared/swap/cwm_time.py:44 python-tables_2.1.2-3+b1 AttributeError /usr/share/pyshared/tables/nra/nestedrecords.py:694 python-twisted-calendarserver_0.2.0.svn19773-5+b2 AttributeError /usr/share/pyshared/twisted/internet/gtkreactor.py:28 python-twisted-calendarserver_0.2.0.svn19773-5+b2 ValueError /usr/share/pyshared/twisted/words/protocols/jabber/xmlstream.py:534 python-twisted-calendarserver_8.2.0.svn27622-1 AttributeError /usr/lib/twisted-calendarserver/lib/python2.6/site-packages/twisted/internet/gtkreactor.py:22 python-twisted-calendarserver_8.2.0.svn27622-1 AttributeError /usr/lib/twisted-calendarserver/lib/python2.5/site-packages/twisted/internet/gtkreactor.py:22 python-twisted-core_10.1.0-2 AttributeError /usr/lib/python2.6/dist-packages/twisted/internet/gtkreactor.py:22 python-twisted-core_10.1.0-2 AttributeError /usr/lib/python2.5/site-packages/twisted/internet/gtkreactor.py:22 python-twisted-core_10.1.0-2 AttributeError /usr/share/pyshared/twisted/internet/gtkreactor.py:22 python-vobject_0.8.1c-3 KeyError /usr/share/pyshared/vobject/icalendar.py:391 python-vobject_0.8.1c-3 KeyError /usr/share/pyshared/vobject/icalendar.py:399 python-vobject_0.8.1c-3 KeyError /usr/share/pyshared/vobject/icalendar.py:473 qmtest_2.4.1-1 AttributeError /usr/share/pyshared/qm/external/DocumentTemplate/pDocumentTemplate.py:93 qmtest_2.4.1-1 KeyError /usr/share/pyshared/qm/external/DocumentTemplate/DT_In.py:701 qmtest_2.4.1-1 KeyError /usr/share/pyshared/qm/external/DocumentTemplate/DT_In.py:710 quodlibet-plugins_1:2.2.1-1 IOError /usr/share/pyshared/quodlibet/plugins/songsmenu/albumart.py:1116 rednotebook_1.0.0-2 UnicodeEncodeError /usr/share/rednotebook/rednotebook/util/unicode.py:69 roundup_1.4.13-3.1 TypeError /usr/share/pyshared/roundup/hyperdb.py:1104 roundup_1.4.13-3.1 TypeError /usr/share/pyshared/roundup/anypy/sets_.py:27 rst2pdf_0.14.2-1 UnicodeEncodeError /usr/share/pyshared/rst2pdf/pdfbuilder.py:781 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/lib/sagemath/devel/sage-main/sage/server/simple/twist.py:176 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/lib/sagemath/devel/sage-main/sage/server/simple/twist.py:283 sagemath_3.0.5dfsg-5.1+b1 KeyboardInterrupt /usr/lib/sagemath/devel/sage-main/sage/schemes/elliptic_curves/ell_padic.py:71 sagemath_3.0.5dfsg-5.1+b1 AttributeError /usr/lib/sagemath/devel/sage-main/sage/schemes/elliptic_curves/sha.py:152 sagemath_3.0.5dfsg-5.1+b1 KeyboardInterrupt /usr/lib/sagemath/devel/sage-main/sage/schemes/elliptic_curves/padic_height.py:51 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/lib/sagemath/devel/sage-main/sage/rings/coerce_python.py:54 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/lib/sagemath/devel/sage-main/sage/rings/coerce_python.py:58 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/lib/sagemath/devel/sage-main/sage/misc/interpreter.py:316 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/lib/sagemath/devel/sage-main/sage/misc/interpreter.py:322 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/lib/sagemath/devel/sage-main/sage/misc/interpreter.py:328 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/lib/sagemath/devel/sage-main/sage/misc/preparser.py:928 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/share/pyshared/sage/server/simple/twist.py:176 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/share/pyshared/sage/server/simple/twist.py:283 sagemath_3.0.5dfsg-5.1+b1 KeyboardInterrupt /usr/share/pyshared/sage/schemes/elliptic_curves/ell_padic.py:71 sagemath_3.0.5dfsg-5.1+b1 AttributeError /usr/share/pyshared/sage/schemes/elliptic_curves/sha.py:152 sagemath_3.0.5dfsg-5.1+b1 KeyboardInterrupt /usr/share/pyshared/sage/schemes/elliptic_curves/padic_height.py:51 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/share/pyshared/sage/rings/coerce_python.py:54 sagemath_3.0.5dfsg-5.1+b1 ValueError /usr/share/pyshared/sage/rings/coerce_python.py:58 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/share/pyshared/sage/misc/interpreter.py:316 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/share/pyshared/sage/misc/interpreter.py:322 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/share/pyshared/sage/misc/interpreter.py:328 sagemath_3.0.5dfsg-5.1+b1 OSError /usr/share/pyshared/sage/misc/preparser.py:928 scribes_0.4~r543-2 IOError /usr/share/pyshared/SCRIBES/PluginInitializer/HomePluginPathCreator.py:33 spambayes_1.0.4-5.1 ValueError /usr/share/pyshared/spambayes/classifier.py:614 spambayes_1.0.4-5.1 ValueError /usr/share/pyshared/spambayes/classifier.py:633 treeline_1.2.4-1 AttributeError /usr/share/treeline/p3.py:39 uligo_0.3-6 OSError /usr/games/uligo:307 uligo_0.3-6 OSError /usr/share/games/uligo/uligo.py:307 uzbl_0.0.0~git.20100403-2 ValueError /usr/bin/uzbl-event-manager:247 uzbl_0.0.0~git.20100403-2 ValueError /usr/share/uzbl/examples/data/scripts/uzbl-event-manager:247 w3af-console_1.0-rc3svn3489-1 SystemExit /usr/share/w3af/extlib/nltk/internals.py:486 w3af-console_1.0-rc3svn3489-1 KeyboardInterrupt /usr/share/w3af/extlib/nltk/classify/weka.py:67 xen-utils-4.0_4.0.1~rc3-1 TypeError /usr/lib/xen-4.0/lib/python/xen/sv/Wizard.py:217 zeroinstall-injector_0.49-1 ValueError /usr/share/pyshared/zeroinstall/0launch-gui/properties.py:77
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