Hello, Mr.Tiago de Paula Peixoto, I have installed python-graph-tool with apt-get command. But another problem occurs. When I execute the example, Building a Price Network and then draw the network with graph_draw() function, my python2.7.5 crashs down. It reports that python has a segmentation fault. I have the core dumped. I have installed all requirements to use graph_tool. Is there any wrong setting I made? Or it is a bug? best regards, Liu 在 2014年1月3日星期五UTC+8上午2时20分58秒，Tiago Peixoto写道：

On 01/02/2014 01:44 PM, Liu wrote:

...

Hi,everyone

I have some problems with installing graph-tools. After I execure ./configure graph-tools, it stops with a message saying libstdc++ config.status: executing libtool commands configure: Modifying libtool to correctly link libstdc++ before anything else...I am not fimiliar with Linux...so I don't know how I can I link my libstd to libtool.

This is not an error message. After the configure script finishes, you have to compile and install the package with "make" and "make install".

...

I install boost-1.55.0 ipython-dev, python with spyder, scipy, numpy, expat, cgal and sparsehash. My OS is Ubuntu 13.10 64bit with gnome 3.10.

The Internet access is not good. So I cannot use the sources that you provide.

Are you referring to the pre-compiled packages for ubuntu? Why can you download the source but not the binary packages? It is much easier than compiling it by hand.

Best, Tiago

-- Tiago de Paula Peixoto <ti...@skewed.de <javascript:>>

Hello, Mr.Tiago de Paula Peixoto I am sorry for the late reply. I have not checked Google Forums for a while. It seems that there is something wrong with pre-compiled packages for Ubuntu 13.10 64Bit version. If I complie the source code and install graph-tool, graph_draw() works well under graph-tool 2.27 and graph-tool 2.28 version. But after I install python-graph-tool with apt-get command, graph_draw() fails drawing any graph which has more than 1000 vertexes. Here is the test python code I used: ######################################################## import sys, os from graph_tool.all import * g = load_graph("price.xml.gz") age = g.vertex_properties["age"] graph_draw(g, output_size=(1000, 1000), vertex_color=age, vertex_fill_color=age, vertex_size=1, edge_pen_width=1.2, output="price.png") ######################################################## And the "price.xml.gz" is produced by a example in the documention of graph-tool(http://graph-tool.skewed.de/static/doc/quickstart.html#an-example-building-a...). The attachment also can be used. I hope these may help you. Best, Liu 在 2014年1月5日星期日UTC+8上午12时14分19秒，Tiago Peixoto写道：

On 01/04/2014 05:34 AM, boxili...@gmail.com <javascript:> wrote:

...

Hello, Mr.Tiago de Paula Peixoto,

I have installed python-graph-tool with apt-get command. But another problem occurs. When I execute the example, Building a Price Network and then draw the network with graph_draw() function, my python2.7.5 crashs down. It reports that python has a segmentation fault. I have the core dumped. I have installed all requirements to use graph_tool. Is there any wrong setting I made? Or it is a bug?

I cannot reproduce this with Ubuntu 13.10. Could you provide a minimal but complete example of when you observer the crash?

A new version of graph-tool (2.2.28) was released today. Do you observe the crash with this version as well?

Best, Tiago

-- Tiago de Paula Peixoto <ti...@skewed.de <javascript:>>

Hello, Mr. Mr.Tiago de Paula Peixoto I tested the example Mr.Klingelschmitt's example. And the same problem occurs with Ubuntu internal error which says python2.7 crashed with SIGSEGV in void get_mapping::operator() and python concole also reports "Python console reports "UMD has deleted: gi.repository.Gtk, gi.repository.Gdk, gi.repository.GdkPixbuf, gi.repository.GLib, gi.repository.GObject, gi.repository.cairo, gi.repository.Atk". I hope these may help. Best, Liu 在 2014年1月5日星期日UTC+8上午12时14分19秒，Tiago Peixoto写道：

On 01/04/2014 05:34 AM, boxili...@gmail.com <javascript:> wrote:

...

Hello, Mr.Tiago de Paula Peixoto,

I have installed python-graph-tool with apt-get command. But another problem occurs. When I execute the example, Building a Price Network and then draw the network with graph_draw() function, my python2.7.5 crashs down. It reports that python has a segmentation fault. I have the core dumped. I have installed all requirements to use graph_tool. Is there any wrong setting I made? Or it is a bug?

I cannot reproduce this with Ubuntu 13.10. Could you provide a minimal but complete example of when you observer the crash?

A new version of graph-tool (2.2.28) was released today. Do you observe the crash with this version as well?

Best, Tiago

-- Tiago de Paula Peixoto <ti...@skewed.de <javascript:>>

Hello, Mr.Klingelschmitt I have just tested your example on my machine(Ubuntu 13.10 64Bit Gnome 3.10). I compiled the source code of graph-tool v.2.28 and then intalled it. The same problem occurs when using subgraph_isomorphism function. Python console reports "UMD has deleted: gi.repository.Gtk, gi.repository.Gdk, gi.repository.GdkPixbuf, gi.repository.GLib, gi.repository.GObject, gi.repository.cairo, gi.repository.Atk". 在 2014年2月14日星期五UTC+8上午3时13分21秒，Stefan Klingelschmitt写道：

Seems like I have a similiar Problem, using ubuntu 13.10 on a 64-Bit machine. The boost library + python seems to have a Problem, Everything works fine until the first function uses the boos library... my guess. Example:

# -*- coding: utf-8 -*-

import numpy as np import graph_tool.all as gt

import graph_tool.topology as gt_topo

G = gt.Graph()

G_sub = gt.Graph()

#Decleration of needed properties v_prop_entity = G.new_vertex_property("string") v_prop_globalName = G.new_vertex_property('string') e_prop_type = G.new_edge_property('string')

#gt_topo.subgraph_isomorphism()

v1 = G.add_vertex() v2 = G.add_vertex()

v3 = G_sub.add_vertex()

e1 = G.add_edge(v1, v2)

#v_prop_entity[v1] = 'car'

#make internal property maps G.vertex_properties['type'] = v_prop_entity G.vertex_properties['globalName'] = v_prop_globalName G.edge_properties['type'] = e_prop_type

G_sub.vertex_properties['type'] = v_prop_entity G_sub.vertex_properties['globalName'] = v_prop_globalName G_sub.edge_properties['type'] = e_prop_type

#write/change internal property maps G.vertex_properties['type'][v1] = 'Car' G.vertex_properties['type'][v2] = 'T-Crossing'

G_sub.vertex_properties['type'][v1] = 'Car'

#gt_topo.subgraph_isomorphism(G_sub, G, (G_sub.vertex_properties['type'], \ # G.vertex_properties['type']) ) print gt_topo.subgraph_isomorphism(G_sub, G)

following error: xxx:~/Code$ python graph-tool_test2.py Speicherzugriffsfehler (Speicherabzug geschrieben)

which means: memory <http://www.dict.cc/englisch-deutsch/memory.html> access <http://www.dict.cc/englisch-deutsch/access.html> error:

The problem occurs, when using the subgraph_isomorphism function...

Am Donnerstag, 2. Januar 2014 13:44:21 UTC+1 schrieb Liu:

...

Hi,everyone

I have some problems with installing graph-tools. After I execure ./configure graph-tools, it stops with a message saying libstdc++ config.status: executing libtool commands configure: Modifying libtool to correctly link libstdc++ before anything else...I am not fimiliar with Linux...so I don't know how I can I link my libstd to libtool.

I install boost-1.55.0 ipython-dev, python with spyder, scipy, numpy, expat, cgal and sparsehash. My OS is Ubuntu 13.10 64bit with gnome 3.10.

The Internet access is not good. So I cannot use the sources that you provide.

thx for help, Liu

-- 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. _______________________________________________ graph-tool mailing list graph...@skewed.de http://lists.skewed.de/mailman/listinfo/graph-tool

...

(Note that finding a subgraph with zero edges is a silly task, since the result will be trivial.)

This is true, I just started a very basic example to get used to the interface. Indeed, adding an edge solves the problem. Thanks!