I tried the following command in Python and ipython prompt (2.7 version)
--------------------------------------------------------------------------- In [1]: from graph_tool.all import * ---------------------------------------------------------------------------
Its giving the following error. How can we solve it?
--------------------------------------------------------------------------- ImportError Traceback (most recent call last) <ipython-input-1-100bbe2bc9d9> in <module>() ----> 1 from graph_tool.all import *
/usr/lib/python2.7/dist-packages/graph_tool/__init__.py in <module>() 103 104 from .dl_import import * --> 105 dl_import("from . import libgraph_tool_core as libcore") 106 __version__ = libcore.mod_info().version 107
/usr/lib/python2.7/dist-packages/graph_tool/dl_import.pyc in dl_import(import_expr) 55 56 try: ---> 57 exec(import_expr, local_dict, global_dict) 58 finally: 59 sys.setdlopenflags(orig_dlopen_flags) # reset it to normal case to
<string> in <module>()
ImportError: /usr/lib/python2.7/dist-packages/graph_tool/libgraph_tool_core.so: undefined symbol: _ZN5boost9iostreams4zlib6finishE ---------------------------------------------------------------------------
Thanks
On 28.06.2016 07:38, vineesh vs wrote:
ImportError: /usr/lib/python2.7/dist-packages/graph_tool/libgraph_tool_core.so: undefined symbol: _ZN5boost9iostreams4zlib6finishE
Undefined symbols like this probably just mean a compilation problem. Probably you are linking with a different boost version than the one you used to compile.
In order to make it possible to people to help you, it is not sufficient to simply show the error message. You need to give more precise information about your system (OS, compiler, boost version, etc), and how you performed the compilation (arguments passed to configure, contents of config.log, etc).
Best, Tiago
You need to give more precise information about your system (OS, compiler, boost version, etc), and how you performed the compilation (arguments passed to configure, contents of config.log, etc).
System info: Mem: 3.7 GiB Processor: Intel® Core™ i5-3550 CPU @ 3.30GHz × 4 Graphics: Intel® Ivybridge Desktop OS: Ubuntu 16.04 LTS, 64-bit
Compiler gcc (Ubuntu 5.3.1-14ubuntu2.1) 5.3.1 20160413 g++ (Ubuntu 5.3.1-14ubuntu2.1) 5.3.1 20160413
boost version: 1.61
Config command used ./configure LDFLAGS=-L/home/vineeshvs/software/boost_1_61_0/libs --with-boost-coroutine=boost_coroutine
PFA config.log config.log http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/file/n4026631/config.log
-- 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 29.06.2016 18:08, vineeshvs wrote:
OS: Ubuntu 16.04 LTS, 64-bit
If you are using Ubuntu 16.04, you can just install numpy that comes with the system.
if this is due to linking to the boost which I did not use to compile,
How would I go about figuring out which boost I am linked with? I only have one boost, it is locally installed, and the python is in a virtual environment to which I manually installed graph tool. I know that everything is here, and that it should work, but I am getting this exact error, and am not sure where to look for this incorrect linkage on the python side...???
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Am 20.06.2018 um 19:49 schrieb cdon:
if this is due to linking to the boost which I did not use to compile,
How would I go about figuring out which boost I am linked with? I only have one boost, it is locally installed, and the python is in a virtual environment to which I manually installed graph tool. I know that everything is here, and that it should work, but I am getting this exact error, and am not sure where to look for this incorrect linkage on the python side...???
It is impossible to say anything without more concrete information, i.e. output of ./configure, contents of config.log, etc.
-
cdon -
Tiago de Paula Peixoto -
vineesh vs -
vineeshvs