By the way, when I run the upload command I get the following error :

Retrying (Retry(total=2, connect=2, read=5, redirect=5, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fd72e900130>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known')': /