Hello!
I think I have solved my problem: for future reference, the solution was
written in the documentation
(http://doc.sagemath.org/html/en/developer/packaging.html).
I have opened ticket 18929 (http://trac.sagemath.org/ticket/18929) to
include igraph library: hopefully, soon it will be available in Sage!
Thank you very much!
Michele
On Thursday, July 16, 2015 at 12:04:28 PM UTC+2, Volker Braun wrote:
>
> I think that means you don't have openssl-devel so the pip built in Sage
> doesn't work.
>
>
> On Thursday, July 16, 2015 at 12:03:12 PM UTC+2, michele...@imtlucca.it
> wrote:
>>
>> Exactly, Nathann, this is what I meant. Sorry if I was not clear in the
>> first place.
>> Anyway, that command does not work: am I doing anything wrong?
>> Thank you for your time!
>>
>> michele@Lena:~/Programmi/sage$ ./sage -pip install python-igraph
>> Traceback (most recent call last):
>> File "/home/michele/Programmi/sage/local/bin/pip", line 9, in <module>
>> load_entry_point('pip==6.1.1', 'console_scripts', 'pip')()
>> File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line
>> 521, in load_entry_point
>> File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line
>> 2632, in load_entry_point
>> File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line
>> 2312, in load
>> File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line
>> 2318, in resolve
>> File
>> "/home/michele/Programmi/sage/local/lib/python2.7/site-packages/pip-6.1.1-py2.7.egg/pip/__init__.py",
>>
>> line 15, in <module>
>> from pip.vcs import git, mercurial, subversion, bazaar # noqa
>> File
>> "/home/michele/Programmi/sage/local/lib/python2.7/site-packages/pip-6.1.1-py2.7.egg/pip/vcs/mercurial.py",
>>
>> line 10, in <module>
>> from pip.download import path_to_url
>> File
>> "/home/michele/Programmi/sage/local/lib/python2.7/site-packages/pip-6.1.1-py2.7.egg/pip/download.py",
>>
>> line 32, in <module>
>> from pip._vendor import requests, six
>> File
>> "/home/michele/Programmi/sage/local/lib/python2.7/site-packages/pip-6.1.1-py2.7.egg/pip/_vendor/__init__.py",
>>
>> line 92, in load_module
>> raise ImportError("No module named '%s'" % (name,))
>> ImportError: No module named 'pip._vendor.requests'
>>
>> On Thursday, July 16, 2015 at 11:54:22 AM UTC+2, Nathann Cohen wrote:
>>>
>>> > sage -pip install python-igraph
>>>
>>> I think that he meant "how do we proceed to have such a package be
>>> shipped in Sage by default".
>>>
>>> Nathann
>>>
>>
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