Getting https://pypi.python.org/packages/source/n/networkx/networkx-1.8.1.tar.gz to ./networkx-1.8.1.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100  787k  100  787k    0     0  1458k      0 --:--:-- --:--:-- --:--:-- 1461k
./networkx_reference.pdf already exists, skipping download
./networkx_tutorial.pdf already exists, skipping download
./networkx-documentation.zip already exists, skipping download
Getting http://networkx.github.io/documentation/latest/_downloads/networkx_reference.pdf to ./networkx_reference.pdf
Getting http://networkx.github.io/documentation/latest/_downloads/networkx_tutorial.pdf to ./networkx_tutorial.pdf
Getting http://networkx.github.io/documentation/latest/_downloads/networkx-documentation.zip to ./networkx-documentation.zip