Installation of "python pip" does not work

opkg update                 # updates the available packages list
opkg install distribute     # it contains the easy_install command line tool
opkg install python-openssl # adds ssl support to python

Just heer it works fin, bad then:

easy_install pip            # installs pip

i get thes messages:

root@Arduino:~# easy_install pip
Searching for pip
Reading http://pypi.python.org/simple/pip/
Download error on http://pypi.python.org/simple/pip/: [Errno -2] Name or service not known -- Some packages may not be found!
Reading http://pypi.python.org/simple/pip/
Download error on http://pypi.python.org/simple/pip/: [Errno -2] Name or service not known -- Some packages may not be found!
Couldn't find index page for 'pip' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading http://pypi.python.org/simple/
Download error on http://pypi.python.org/simple/: [Errno -2] Name or service not known -- Some packages may not be found!
No local packages or download links found for pip
error: Could not find suitable distribution for Requirement.parse('pip')

Who can help me? Found no such message with Google .... Latest firmware is installed ... maybe that is the problem Thanks for the help

If following command work.

ping pypi.python.org
wget https://pypi.python.org/packages/source/p/pip/pip-6.0.8.tar.gz#md5=2332e6f97e75ded3bddde0ced01dbda3  --no-check-certificate
easy_install pip-6.0.8.tar.gz

When I enter this code on pc then it works fine.

On the Arduino Yun I get the following message:

ping: bad address 'pypi.python.org'

opkg update no problem! Why this address can not be resolved?

Problem solved:

VI /etc/config/network

add dns server to used netservice, in my case 'lan'

option 'dns' '8.8.8.8'

thanks to sonnyyu