Ubuntu first configuration - Price Network example
Hello, I'm really really new to Ubuntu and Python, so be gentle with me, and moreover don't give anything for granted with me, thank you! I installed graph tool via 'sudo apt-get install graph-tool', and everything seemed to go fine. I'm now trying to run the example code from the documentation (Price Network example), but I cannot make it work :-( These are the steps I followed: 1 - sudo gedit first.py 2 - copy and paste of example code 3 - save (so it gets in my home) 4 - python first.py Here I get the following error: /Traceback (most recent call last): File "first.py", line 10, in <module> from graph_tool.all import * ImportError: No module named graph_tool.all/ I tried the following: 1: reissue the installing command, but it says that graph-tool is already installed with last version 2: if I write 'graph-tool --help' it says command not found 3: gcc -v says /Target: i686-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.1-9ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --enable-targets=all --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu Thread model: posix gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) / 4: python -v says /# installing zipimport hook import zipimport # builtin # installed zipimport hook # /usr/lib/python2.7/site.pyc matches /usr/lib/python2.7/site.py import site # precompiled from /usr/lib/python2.7/site.pyc # /usr/lib/python2.7/os.pyc matches /usr/lib/python2.7/os.py import os # precompiled from /usr/lib/python2.7/os.pyc import errno # builtin import posix # builtin # /usr/lib/python2.7/posixpath.pyc matches /usr/lib/python2.7/posixpath.py import posixpath # precompiled from /usr/lib/python2.7/posixpath.pyc # /usr/lib/python2.7/stat.pyc matches /usr/lib/python2.7/stat.py import stat # precompiled from /usr/lib/python2.7/stat.pyc # /usr/lib/python2.7/genericpath.pyc matches /usr/lib/python2.7/genericpath.py import genericpath # precompiled from /usr/lib/python2.7/genericpath.pyc # /usr/lib/python2.7/warnings.pyc matches /usr/lib/python2.7/warnings.py import warnings # precompiled from /usr/lib/python2.7/warnings.pyc # /usr/lib/python2.7/linecache.pyc matches /usr/lib/python2.7/linecache.py import linecache # precompiled from /usr/lib/python2.7/linecache.pyc # /usr/lib/python2.7/types.pyc matches /usr/lib/python2.7/types.py import types # precompiled from /usr/lib/python2.7/types.pyc # /usr/lib/python2.7/UserDict.pyc matches /usr/lib/python2.7/UserDict.py import UserDict # precompiled from /usr/lib/python2.7/UserDict.pyc # /usr/lib/python2.7/_abcoll.pyc matches /usr/lib/python2.7/_abcoll.py import _abcoll # precompiled from /usr/lib/python2.7/_abcoll.pyc # /usr/lib/python2.7/abc.pyc matches /usr/lib/python2.7/abc.py import abc # precompiled from /usr/lib/python2.7/abc.pyc # /usr/lib/python2.7/_weakrefset.pyc matches /usr/lib/python2.7/_weakrefset.py import _weakrefset # precompiled from /usr/lib/python2.7/_weakrefset.pyc import _weakref # builtin # /usr/lib/python2.7/copy_reg.pyc matches /usr/lib/python2.7/copy_reg.py import copy_reg # precompiled from /usr/lib/python2.7/copy_reg.pyc # /usr/lib/python2.7/traceback.pyc matches /usr/lib/python2.7/traceback.py import traceback # precompiled from /usr/lib/python2.7/traceback.pyc # /usr/lib/python2.7/sysconfig.pyc matches /usr/lib/python2.7/sysconfig.py import sysconfig # precompiled from /usr/lib/python2.7/sysconfig.pyc # /usr/lib/python2.7/re.pyc matches /usr/lib/python2.7/re.py import re # precompiled from /usr/lib/python2.7/re.pyc # /usr/lib/python2.7/sre_compile.pyc matches /usr/lib/python2.7/sre_compile.py import sre_compile # precompiled from /usr/lib/python2.7/sre_compile.pyc import _sre # builtin # /usr/lib/python2.7/sre_parse.pyc matches /usr/lib/python2.7/sre_parse.py import sre_parse # precompiled from /usr/lib/python2.7/sre_parse.pyc # /usr/lib/python2.7/sre_constants.pyc matches /usr/lib/python2.7/sre_constants.py import sre_constants # precompiled from /usr/lib/python2.7/sre_constants.pyc # /usr/lib/python2.7/sitecustomize.pyc matches /usr/lib/python2.7/sitecustomize.py import sitecustomize # precompiled from /usr/lib/python2.7/sitecustomize.pyc # /usr/lib/python2.7/dist-packages/apport_python_hook.pyc matches /usr/lib/python2.7/dist-packages/apport_python_hook.py import apport_python_hook # precompiled from /usr/lib/python2.7/dist-packages/apport_python_hook.pyc import encodings # directory /usr/lib/python2.7/encodings # /usr/lib/python2.7/encodings/__init__.pyc matches /usr/lib/python2.7/encodings/__init__.py import encodings # precompiled from /usr/lib/python2.7/encodings/__init__.pyc # /usr/lib/python2.7/codecs.pyc matches /usr/lib/python2.7/codecs.py import codecs # precompiled from /usr/lib/python2.7/codecs.pyc import _codecs # builtin # /usr/lib/python2.7/encodings/aliases.pyc matches /usr/lib/python2.7/encodings/aliases.py import encodings.aliases # precompiled from /usr/lib/python2.7/encodings/aliases.pyc # /usr/lib/python2.7/encodings/utf_8.pyc matches /usr/lib/python2.7/encodings/utf_8.py import encodings.utf_8 # precompiled from /usr/lib/python2.7/encodings/utf_8.pyc Python 2.7.2+ (default, Oct 4 2011, 20:03:08) [GCC 4.6.1] on linux2 Type "help", "copyright", "credits" or "license" for more information. dlopen("/usr/lib/python2.7/lib-dynload/readline.so", 2); import readline # dynamically loaded from /usr/lib/python2.7/lib-dynload/readline.so/ 5: if I look for graph-tool on the computer, there are two folders in usr/share/doc and usr/doc 6: If I look for python on the computer, I see there is both python2.6 and python2.7 and python3 under usr/lib 7: May it depend on the first row of the code? (#! /usr/bin/env python) Should it refer to some place in particular? Feel free to ask for any extra configuration, but if I need to write some commands, please state them clearly, since I'm a newbie! Thank you very much! Fabio -- View this message in context: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/... Sent from the Main discussion list for the graph-tool project mailing list archive at Nabble.com.
Hi Fabio, On 02/11/2012 10:35 PM, Fabio wrote:
These are the steps I followed: 1 - sudo gedit first.py
You do not need to run "sudo", since there is no need to edit the program as the superuser.
2 - copy and paste of example code 3 - save (so it gets in my home) 4 - python first.py Here I get the following error: /Traceback (most recent call last): File "first.py", line 10, in <module> from graph_tool.all import * ImportError: No module named graph_tool.all/
Is the trailing slash "/" really in the error message? Try the following to see if graph-tool was properly installed: 1. Type "python"; 2. inside the python prompt, type "import graph_tool". If not error is given, then graph-tool was properly installed.
6: If I look for python on the computer, I see there is both python2.6 and python2.7 and python3 under usr/lib
Try the same command as before, but with "python2.6" instead of "python". Cheers, Tiago -- Tiago de Paula Peixoto <tiago@skewed.de>
Hi Tiago, thank you very much for the very quick reply! Tiago Peixoto wrote
4 - python first.py Here I get the following error: /Traceback (most recent call last): File "first.py", line 10, in <module> from graph_tool.all import * ImportError: No module named graph_tool.all/
Is the trailing slash "/" really in the error message?
No, I'm sorry, it's just a typo... no slash :D Tiago Peixoto wrote
Try the following to see if graph-tool was properly installed: 1. Type "python"; 2. inside the python prompt, type "import graph_tool". If not error is given, then graph-tool was properly installed.
It says: /Python 2.7.2+ (default, Oct 4 2011, 20:03:08) [GCC 4.6.1] on linux2/ etc etc... and at import graph_tool it says /Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named graph_tool/ Tiago Peixoto wrote
6: If I look for python on the computer, I see there is both python2.6 and python2.7 and python3 under usr/lib
Try the same command as before, but with "python2.6" instead of "python".
It says: /Python 2.6.7 (r267:88850, Aug 11 2011, 12:16:10) [GCC 4.6.1] on linux2/ etc etc... and at import graph_tool it seems to work, meaning that no error appears, and the prompt is ready for another command! So I tried the following command: python2.6 first.py and it worked! It created the PDF graph, as expected! So, the error is that graph_tool is installed in a python version that is not the default one, is that right? Which version should graph_tool be installed on? 2.6 or 2.7? Thank you very much! Fabio -- View this message in context: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/... Sent from the Main discussion list for the graph-tool project mailing list archive at Nabble.com.
On 02/12/2012 08:41 PM, Fabio wrote:
6: If I look for python on the computer, I see there is both python2.6 and python2.7 and python3 under usr/lib
Try the same command as before, but with "python2.6" instead of "python".
It says: /Python 2.6.7 (r267:88850, Aug 11 2011, 12:16:10) [GCC 4.6.1] on linux2/ etc etc... and at import graph_tool it seems to work, meaning that no error appears, and the prompt is ready for another command!
So I tried the following command: python2.6 first.py and it worked! It created the PDF graph, as expected!
So, the error is that graph_tool is installed in a python version that is not the default one, is that right? Which version should graph_tool be installed on? 2.6 or 2.7?
It seems graph-tool is installed against python 2.6 on ubuntu, so you have to use that version. In the next version I will make sure it is installed against the latest version. Cheers, Tiago -- Tiago de Paula Peixoto <tiago@skewed.de>
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Tiago de Paula Peixoto