install ros on debian wheezy

edit

Hello! I am trying to install ROS indigo on a Beaglebone Black with debian wheezy. I have followed the tutorial and it worked until the step 1.3. The commands sudo apt-get install python-setuptools and sudo easy_install pip were ok but when I execute sudo pip install -U rosdep rosinstall_generator wstool rosinstall then I get the following message:

/usr/local/lib/python2.7/dist-packages/pip-7.0.3-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
Collecting rosdep
/usr/local/lib/python2.7/dist-packages/pip-7.0.3-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
/usr/local/lib/python2.7/dist-packages/pip-7.0.3-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning

Could not find a version that satisfies the requirement rosdep (from versions: )
No matching distribution found for rosdep

Does anyone know how to solve it? Thank you for your help! Cheers