ERROR: Error downloading file https://downloads.sourceforge.net/project/giflib/giflib-5.2.1.tar.gz: 'HTTPSConnectionPool(host='svwh.dl.sourceforge.net', port=443): Max retries exceeded with url: /project/giflib/giflib-5.2.1.tar.gz (Caused by ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x111959a58>, 'Connection to svwh.dl.sourceforge.net timed out. (connect timeout=60.0)'))'