Debug:

    stdClass::__set_state(array(
       'request' => 'POST /+request-token HTTP/1.0
    Host: staging.launchpad.net
    User-Agent: Drupal (+http://drupal.org/)
    Content-Length: 170

    oauth_version=1.0&oauth_nonce=fcc97c291d4d19c539ea6135055ab436&oauth_timestamp=1330538626&oauth_consumer_key=drupallp&oauth_signature_method=PLAINTEXT&oauth_signature=%26',
       'data' => 'oauth_token=2tsvsDdMLfK7sJXzvglv&oauth_token_secret=dXsCTw6sQ7XSKc8GGkxfSRB3WtpZGQwFPwxcHRStPPkvwKjgdCnC10NNpx36T1mSbb3X82pQDm57B44b',
       'protocol' => 'HTTP/1.1',
       'status_message' => 'OK',
       'headers' =>
      array (
        'date' => 'Wed, 29 Feb 2012 18:03:47 GMT',
        'server' => 'zope.server.http (HTTP)',
        'x-powered-by' => 'Zope (www.zope.org), Python (www.python.org)',
        'x-content-type-warning' => 'guessed from content',
        'content-type' => 'text/plain;charset=utf-8',
        'content-length' => '132',
        'vary' => 'Cookie,Authorization,Accept-Encoding',
        'x-cache' => 'MISS from arsenic.canonical.com',
        'x-cache-lookup' => 'MISS from arsenic.canonical.com:3128',
        'via' => '1.0 staging.launchpad.net',
        'x-scheme' => 'https',
        'connection' => 'close',
      ),
       'code' => '200',
    ))

    in Launchpad->request() (line 138 of /usr/share/nginx/www/sites/all/modules/launchpad/launchpad.lib.php).
    Debug:

    stdClass::__set_state(array(
       'request' => 'POST /+access-token HTTP/1.0
    Host: staging.launchpad.net
    User-Agent: Drupal (+http://drupal.org/)
    Content-Length: 283

    oauth_version=1.0&oauth_nonce=f30e5ec8550e081acdf37b6a5a950d6e&oauth_timestamp=1330538639&oauth_consumer_key=drupallp&oauth_token=2tsvsDdMLfK7sJXzvglv&oauth_signature_method=PLAINTEXT&oauth_signature=%26dXsCTw6sQ7XSKc8GGkxfSRB3WtpZGQwFPwxcHRStPPkvwKjgdCnC10NNpx36T1mSbb3X82pQDm57B44b',
       'data' => 'oauth_token=FZzh41rhXj3xQdKbB2sV&oauth_token_secret=bclsfHKdS91vpCLNlzsWrrQZlxNtg5ctCR1Q1pD3xb6t1dZxv3l1V6ZDWgC0WxFd7HKl0wVM1vrdkmkJ&lp.context=None',
       'protocol' => 'HTTP/1.1',
       'status_message' => 'OK',
       'headers' =>
      array (
        'date' => 'Wed, 29 Feb 2012 18:03:59 GMT',
        'server' => 'zope.server.http (HTTP)',
        'x-powered-by' => 'Zope (www.zope.org), Python (www.python.org)',
        'x-content-type-warning' => 'guessed from content',
        'content-type' => 'text/plain;charset=utf-8',
        'content-length' => '148',
        'vary' => 'Cookie,Authorization,Accept-Encoding',
        'x-cache' => 'MISS from arsenic.canonical.com',
        'x-cache-lookup' => 'MISS from arsenic.canonical.com:3128',
        'via' => '1.0 staging.launchpad.net',
        'x-scheme' => 'https',
        'connection' => 'close',
      ),
       'code' => '200',
    ))

    in Launchpad->request() (line 138 of /usr/share/nginx/www/sites/all/modules/launchpad/launchpad.lib.php).
    Debug:

    stdClass::__set_state(array(
       'request' => 'GET /1.0/people/+me HTTP/1.0
    Host: api.staging.launchpad.net
    User-Agent: Drupal (+http://drupal.org/)

    ',
       'data' => 'You need to be logged in to view this URL.',
       'protocol' => 'HTTP/1.1',
       'status_message' => 'Unauthorized',
       'headers' =>
      array (
        'date' => 'Wed, 29 Feb 2012 18:04:00 GMT',
        'server' => 'zope.server.http (HTTP)',
        'x-powered-by' => 'Zope (www.zope.org), Python (www.python.org)',
        'content-length' => '42',
        'content-type' => 'text/plain',
        'x-cache' => 'MISS from arsenic.canonical.com',
        'x-cache-lookup' => 'MISS from arsenic.canonical.com:3128',
        'via' => '1.0 api.staging.launchpad.net',
        'vary' => 'Accept-Encoding',
        'connection' => 'close',
      ),
       'code' => '401',
       'error' => 'Unauthorized',
    ))

    in Launchpad->request() (line 138 of /usr/share/nginx/www/sites/all/modules/launchpad/launchpad.lib.php).