Re: [igraph] igraph 0.5 and Graph.Tree()

[Marco]

Tamas,

I knew about locally using libraries, but I never knew about this.
I am gonna try it right now!

Thank you!

marco

--
restituiremo il riso ai salici



On Fri, Jun 26, 2009 at 12:49 PM, Tamas Nepusz<address@hidden> wrote:
> Hi,
>
> Note that you don't need sysadmin permissions to upgrade. You can set up a
> Python virtual environment inside your home directory using
> python-virtualenv, compile and install igraph locally into your home
> directory and then use that. A few tweaks are required, though, the whole
> process is roughly as follows:
>
> 1. Get the igraph source code
> 2. Configure it using ./configure --prefix=/home/marco (or wherever your
> home directory is)
> 3. make && make install (it will put the necessary files in
> /home/marco/include and /home/marco/lib)
> 4. Set up your library path to include /home/marco/lib (otherwise Fedora
> won't find the igraph libs): export LD_LIBRARY_PATH=/home/marco/lib
> 5. Create a Python virtual environment (see, e.g.,
> http://peak.telecommunity.com/DevCenter/EasyInstall#creating-a-virtual-python 
> )
> 6. Make sure that "python" points to your virtual environment (i.e., type
> "which python" in your shell and check the path).
> 7. Install easy_install into your virtual environment using
> http://peak.telecommunity.com/dist/ez_setup.py .
> 8. easy_install python-igraph into your virtual environment
>
> Note that the changes in step #4 should be done whenever you plan to use the
> locally installed igraph (that's in your home directory). Your best bet is
> probably to add it to your .profile or .bashrc.
>
> --
> T.
>
>
> On 2009.06.26., at 11:35, Marco wrote:
>
>> Hello all igraphers!
>>
>> I am using an old version of the library on an old Fedora machine.
>>
>> When I build a tree, using:
>>
>> g=igraph.Graph.Tree(100,3)
>>
>> and then write the graph to a file (GML format) the result is a
>> directed graph: the GML file reads:
>>
>> Creator "igraph version 0.5 Fri Jun 26 12:31:25 2009"
>> Version 1
>> graph
>> [
>>  directed 1
>> ....
>>
>> Which is not obvious, since the Tree() should default to
>> "type=TREE_UNDIRECTED".
>>
>> Is that a glitch in the old version I am using, or it's a bug?
>> And if it is the latter, has it been fixed in more recent versions?
>> Is there a fix without updating?
>>
>> I guess I should update, but I don't know if the admin will let me :)
>>
>> Thanks,
>>
>> marco
>>
>> --
>> restituiremo il riso ai salici
>>
>>
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>
>
>
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