Error running networkx tests

[Munasur12]

Hi,
I installed networkx using sudo pip install networkx[all] onto an Ubuntu 17.10 system. However, when I run the test:

>>> import networkx as nx
>>> nx.test()

the following error occurs:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "networkx/tests/test.py", line 24, in run
    "The nose package is needed to run the NetworkX tests.")
ImportError: The nose package is needed to run the NetworkX tests.
>>> 




Any help is much appreciated.

[Henri Girard]

As I use it with sage i pip it with sage

./sage -pip install networkx --upgrade

My sage directory is is in my home I don't need sudo and python 2 ca be used too

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[Henri Girard]

I forget to say restart sage kernel in sage -n=jupyter

There are few dependencies to install too... Look the networkx tutorial for installation it's well done.

Le 04/04/2018 à 19:23, Munasur12 a écrit :

[Munasur12]

Thanks @Henri for the reply. Can you give be more information about sage? I have not heard about it.

[Henri Girard]

Sorry I didn't notice it wasn't sagemath mailing list, because I just install networkx  few days ago and I asked some help from them

https://groups.google.com/forum/#!forum/sage-support

http://www.sagemath.org/tour.html

Sage has already a good graphs tools, many free books are written for it  (sagebook in french which is actually translated in english and is free) sage for graduate mister bard (lol) very good man and very good book, sagemath is a very quick developing software with many tools, python, numpy sympy etc...

Hope this help

Henri

[Henri Girard]

Here is the installation from the tutoriel (install the import with sudo apt install "file" and if you can't find it install it from pip or python in sage :

./sage -pip install "file"

./sage -python setup.py install if you have one (for example from a git)

Le 04/04/2018 à 19:23, Munasur12 a écrit :