When using idle.py I got next erro, so I belive that this is a bug inside Python 2.2.2 A similar error happens when you import LinearAlgebra (in Numeric) from the prompt. Python 2.2.2 (#1, Dec 22 2002, 17:44:21) [GCC 3.2.1] on linux2 Type "copyright", "credits" or "license" for more information. IDLE 0.8 -- press F1 for help >>> Exception in Tkinter callback Traceback (most recent call last): File "/usr/lib/python2.2/lib-tk/Tkinter.py", line 1300, in __call__ return apply(self.func, args) File "/usr/lib/python2.2/tools/idle/TreeWidget.py", line 124, in flip self.item.OnDoubleClick() File "/usr/lib/python2.2/tools/idle/ClassBrowser.py", line 206, in OnDoubleClick edit.gotoline(self.cl.methods[self.name]) File "/usr/lib/python2.2/tools/idle/EditorWindow.py", line 397, in gotoline self.center() File "/usr/lib/python2.2/tools/idle/EditorWindow.py", line 488, in center top, bot = self.getwindowlines() File "/usr/lib/python2.2/tools/idle/EditorWindow.py", line 497, in getwindowlines bot = self.getlineno("@0,65535") File "/usr/lib/python2.2/tools/idle/EditorWindow.py", line 506, in getlineno return int(float(text.index(mark))) OverflowError: float too large to convert
This looks like a very strange bug indeed. The bug is very simple to demonstrate (for me at least): $ python Python 2.2.2 (#1, Dec 31 2002, 13:29:44) [GCC 3.2.1 20021207 (Gentoo Linux 3.2.1-20021207)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> int(2.2) 0 >>> int(4) 4 >>> int(5.4) 0 >>> int(10.2) Traceback (most recent call last): File "<stdin>", line 1, in ? OverflowError: float too large to convert >>>^D I've tried compiling python with the following sets of CFLAGS: CFLAGS="-march=pentium4 -O3 -pipe" CFLAGS="-mcpu=pentium4 -O3 -pipe" CFLAGS="-O2 -pipe (this is all with gcc-3.2.1-r6 of the "unstable" gentoo portage).
Subject: Re: [gentoo-user] int(float(1)) == 0 ? in Python 2.2.2 From: Nicholas Hockey <tilt@bluecherry.net> To: gentoo-user@gentoo.org Date: 02 Jan 2003 01:13:40 -0500 X-Mew: Text/Html in Multipart/Alternative as a singlepart Text/Html in Multipart/Alternative as a singlepart Text/Html in Multipart/Alternative as a singlepart X-Mew: <8 body> No his/her public key. ID = not found X-Mew: <12 body> No his/her public key. ID = not found X-Mew: <14 body> No his/her public key. ID = not found I think you got bit by a gcc-3 bug, http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8988 we got similare seg faults in BitchX, and if you notice the one of three ppl who said it worked fine, was the one using an odd version of gcc, i compiled it with the optamizer flags set to -O3 -march=i686 which defuses the bug... another quick fix would be putting -fno-strength-reduce in your CFLAGS till you can upgrade [tilt@blackhole] ~ > python Python 2.2.2 (#1, Dec 10 2002, 14:18:33) [GCC 3.2.1] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> int(1) 1 >>> int(1.0) 1 >>> int(9.01754349826526) 9 >>> int(9.01754) 9 >>> int(10) 10 >>> On Sun, 2002-12-29 at 23:44, Cong wrote: Could you help me to figure out what happened ! $ python Python 2.2.2 (#1, Dec 30 2002, 13:03:14) [GCC 3.2.1] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> int(1) 1 >>> int(1.0) 0 >>> int(9.01754349826526) Traceback (most recent call last): File "<stdin>", line 1, in ? OverflowError: float too large to convert >>> int(9.01754) 0 >>> int(10) 10 >>>
The int() bug is a showstopper for me doing any Python development on Gentoo. I also tried using -march-i686 -O3, and that didn't help any. Rob.
Ok, can you please attach the output of 'emerge info'? thanks!
# emerge info Portage 2.0.46-r9 (default-x86-1.4, gcc-3.2.1, glibc-2.3.1-r2) ================================================================= System uname: 2.4.20-gentoo-r1 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz GENTOO_MIRRORS="http://www.ibiblio.org/pub/Linux/distributions/gentoo" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/kde/3/share/config /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" PORTDIR="/usr/portage" DISTDIR="/opt/tmp/distfiles" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/opt/tmp" PORTDIR_OVERLAY="/opt/portage" USE="x86 oss apm avi crypt cups encode gif jpeg libg++ mmx mpeg nls pdflib png quicktime spell truetype xmms xv zlib directfb gtkhtml alsa readline arts tetex aalib nas bonobo tcltk java guile ruby X gpm tcpd pam libwww ssl perl python esd gnome gtk qt kde opengl mozilla gphoto2 cdr scanner -3dnow acpi atlas -berkdb canna cjk dvd freewnn -gdbm icc icc-pgo imap -imlib jikes leim maildir mbox -mikmod -motif mule -ncurses oav -oggvorbis pic plotutils pnp -qtmt -sdl -slang slp sse -svga tiff wmf -xml2" COMPILER="gcc3" CHOST="i686-pc-linux-gnu" CFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer" CXXFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer" ACCEPT_KEYWORDS="x86" MAKEOPTS="-j2" AUTOCLEAN="true" SYNC="rsync://rsync.gentoo.org/gentoo-portage" FEATURES="sandbox ccache"
Could it be that the python ebuild script overrides the -O3 compiler flag with -O2 exposing this problem? I'm also running into this problem in the emerge of media-sound/lilypond (bug 13396).
Jon, If you look closely at the output of emerge python, then it is clear that it does pass all the arguments in the CFLAGS. In fact the ebuild teaches that only an option of "-malign-double" would be filtered out. I believe Cong has the proper answer to this problem if only I could manage to reproduce the problem somehow... Cong, I've recompiled python a few times now including exactly your settings from emerge info, I haven't been able to reproduce this issue. Have you verified that your system is "up to date"? (The only difference between my tries and yours is that I had to use -march=i686 since I run on an Athlon and P4 code wouldn't run on it.)
Hi , I'd like to keep SYSTEM and my favorite apps up-to-date. Have a look at my /var/cache/edb/world too. $ emerge system -up --deep These are the packages that I would merge, in order: Calculating system dependencies ...done! $ emerge world -up --deep These are the packages that I would merge, in order: Calculating world dependencies ...done! [ebuild UD] media-video/nvidia-kernel-1.0.3123-r2 [1.0.4191-r1] [ebuild UD] media-video/nvidia-glx-1.0.3123 [1.0.4191] [ebuild U ] media-libs/glut-3.7.1 [3.7-r2] [ebuild U ] app-text/openjade-1.3.1-r6 [1.3.1-r5] [ebuild UD] app-text/docbook-sgml-dtd-4.0-r1 [4.1-r1] [ebuild N ] net-libs/openslp-1.0.9a [ebuild UD] kde-base/arts-1.0.5a [1.1.0_rc6] [ebuild UD] kde-base/kdelibs-3.0.5a [3.1_rc6] [ebuild UD] media-libs/xine-lib-0.9.13-r2 [1_beta2] [ebuild UD] media-libs/libpng-1.0.15 [1.2.5-r3] [ebuild U ] media-libs/libsdl-1.2.5-r1 [1.2.4.20020601] [ebuild UD] media-video/vlc-0.4.4 [0.4.5] [ebuild UD] app-cdr/cdrtools-1.11.33 [2.0] [ebuild UD] app-cdr/xcdroast-0.98_alpha10-r2 [0.98_alpha13] [ebuild UD] x11-wm/metacity-2.4.1 [2.4.8] [ebuild U ] x11-libs/wxGTK-2.4.0 [2.3.3] [ebuild U ] dev-python/wxPython-2.4.0.1 [2.3.3.1-r2] [ebuild N ] media-video/mplayer-0.90_rc2 [ebuild UD] dev-util/anjuta-1.0.0 [1.0.1] [ebuild UD] media-video/transcode-0.6.0 [0.6.3.20021205] [ebuild UD] media-video/dvdrip-0.46 [0.48.5] [ebuild UD] sys-apps/eject-2.0.10 [2.0.12] [ebuild U ] x11-libs/libzvt-2.0.1-r2 [2.0.1-r1] [ebuild U ] gnome-extra/gconf-editor-0.4.0 [0.3.1] [ebuild N ] media-sound/sox-12.17.3-r3 [ebuild UD] kde-base/kdebase-3.0.5a-r1 [3.1_rc6]
Created attachment 7489 [details] the WORLD file
> (The only difference between my tries and yours is that I had to > use -march=i686 since I run on an Athlon and P4 code wouldn't run on it.) This seems to be the exact problem. I suspect that gcc-3.2.1-r7 (which was patched with patches that supposedly should have fixed this problem, but apparently didn't) is miscompiling glibc-2.3.1, which in turn causes this problem in python. I can do jed /etc/make.conf (changing the CFLAGS to "-march=p4 -O3 ...") emerge glibc python <do python test> jed /etc/make.conf (change CFLAGS to "-mcpu=p4 -O3 ...") emerge glibc python <do python test> and the int() function *will* fail in the first instance, but int() will work fine in the second test. So it seems that there are still problems with glibc. (I haven't actually tried it, but the above should also reproduce the errors without recompiling python since it's dynamically linked with glibc).
I have verified both 1 and 2 on my box: 1. > and the int() function *will* fail in the first instance, but int() will work fine in the > second test. So it seems that there are still problems with glibc. 2. > (I haven't actually > tried it, but the above should also reproduce the errors without recompiling python > since it's dynamically linked with glibc).
Known problems with -march=pentium4 -O3 ... please recompile glibc with "-march=pentium3 -O2 -pipe". Its actually a gcc3 problem.
With CFLAGS="-O3 -mcpu=pentium4 -pipe -fomit-frame-pointer" it works too. Now I use it to compile glibc and the next for compiling others: CFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer"
Since this has been confirmed as a gcc/libc bug I am going to close this particular bug as it contains a workaround which will resolve the problem. This will hopefully be corrected permanently with the next gcc/glibc release.
