problem in import graph-tool

graph-tool
1

Hi

I've installed graph-tool and when I try to import it, I get the following
message:

import graph_tool

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "graph_tool/__init__.py", line 101, in <module>
    dl_import("from . import libgraph_tool_core as libcore")
  File "graph_tool/dl_import.py", line 57, in dl_import
    exec(import_expr, local_dict, global_dict)
  File "<string>", line 1, in <module>
ImportError: cannot import name libgraph_tool_core

Any one can help to solve this problem?

Cheers!
M

2

This is most likely an installation problem, but it is difficult to say
without you giving us more information. What operating system and
versions of Python and Boost were you using? Did you compile it
yourself? If so, what options did you pass to the configure script, and
what was the output in the config.log file?

Best,
Tiago

3

Hi Tiago

I'm using OS X Yosemite, Python 2.7.9, and Boost Version 1.57.0. In terms of
the installations, I followed the instructions in here
<http://graph-tool.skewed.de/download&gt; and here
<https://gist.github.com/openp2pdesign/8864593&gt; .

Regards
M

4

I can't vouch for these installation instructions myself, since I never
used homebrew, but it seems that there is a mismatch between the python
you are using and the one for which graph-tool was installed.

Unfortunately, you are still giving too little information to precisely
pinpoint the problem. That error message by itself does not say much...

I recommend you install graph-tool with macports, since it requires less
manual intervention.

Best,
Tiago

5

Thanks

Yes, I did install graph-tool using macports. This problem occur when the
installations done.
Please let me know What king of information do you want me to provide you?

6

Yes, I did install graph-tool using macports. This problem occur when
the installations done.

Then why did you link to the install instructions with homebrew?

Please let me know What king of information do you want me to provide you?

You can send the full output and logs from the "port install" command.

But since you are using macports, you are better off opening a ticket at
their website. They are usually quick to respond:

      https://trac.macports.org/newticket

Best,
Tiago

7

Thank,

just quick question, does this tool graph-tool able to check the isomorphism
of graphs which written in .dot(graphviz) which produced from other tool?

8

Yes.

Best,
Tiago

9

Hi

Again another problem, I've solved the previous problem and I got something
else which is:

import graph_tool

Fatal Python error: PyThreadState_Get: no current thread
Abort trap: 6

Any one face same problem?

Best

10

It looks like you are using a different python interpreter than the one
which was used to compile graph-tool. Beware that macports and homebrew
both install different python interpreters, which are in turn different
than the system's version.

Best,
Tiago

11

Thanks Tiago, It works now!