DeadUrl: version 5.15.0_p6: SRC_URI: HTTPSConnectionPool(host='downloads.sourceforge.net', port=443): Read timed out. (read timeout=5.0): https://downloads.sourceforge.net/plplot/plplot-5.15.0.tar.gz
  DeadUrl: version 5.15.0_p6: metadata.xml: remote-id: 429 Client Error: Too Many Requests for url: https://sourceforge.net/projects/plplot/