Internal Program Version: httplib2  0.20.4

HTTP and HTTPS
    HTTPS support is only available if the socket module was compiled
    with SSL support.
Keep-Alive
    Supports HTTP 1.1 Keep-Alive, keeping the socket open and performing
    multiple requests over the same connection if possible.
Authentication
    The following three types of HTTP Authentication are supported.
    These can be used over both HTTP and HTTPS.

        Digest
        Basic
        WSSE

Caching
    The module can optionally operate with a private cache that understands
    the Cache-Control: header and uses both the ETag and Last-Modified cache
    validators. Both file system and memcached based caches are supported.
All Methods
    The module can handle any HTTP request method, not just GET and POST.
Redirects
    Automatically follows 3XX redirects on GETs.
Compression
    Handles both ‘deflate’ and ‘gzip’ types of compression.
Lost update support
    Automatically adds back ETags into PUT requests to resources we have already
    cached. This implements Section 3.2 of Detecting the Lost Update Problem
Using Unreserved Checkout
Unit Tested
    A large and growing set of unit tests.

https://pypi.python.org/pypi/httplib2