Where I am, it seems these nodes don't work (filtered). are there any other ways to install them manually ?
supervisor logs example:
selecting download node...
https://download.bt.cn
Looking in indexes: http://pypi.douban.com/simple
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPConnection object at 0x7f26c5b17850>, 'Connection to pypi.douban.com timed out. (connect timeout=15)')': /simple/supervisor/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPConnection object at 0x7f26c5b17f90>, 'Connection to pypi.douban.com timed out. (connect timeout=15)')': /simple/supervisor/
although it says its installed, the corresponding folder have the files with correct name, but they are all 0 byte empty files and I cannot work with it, same with redis and redis as PHP extention.