[Solved] Can't upgrade calibre

[shuvashish76]

I'm on Debian13 and using Calibre 8.15, isolated installation. It shows following errors when running the mentioned command:

wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sh /dev/stdin install_dir=~/calibre-bin isolated=y

Errors:

failed: Connection timed out.
Using python executable: /usr/bin/python3
2025-12-06 13:07:15 URL:https://download.calibre-ebook.com/linux-installer.sh [35050/35050] -> "-" [1]
Installing to /home/ss/calibre-bin/calibre
Downloading tarball signature securely...
Traceback (most recent call last):
  File "<string>", line 1, in <module>
    import sys; script_launch=lambda:sys.exit('Download of installer failed!'); exec(sys.stdin.read()); script_launch()
                                                                                                        ~~~~~~~~~~~~~^^
  File "<string>", line 890, in script_launch
  File "<string>", line 846, in main
  File "<string>", line 708, in run_installer
  File "<string>", line 684, in download_and_extract
  File "<string>", line 672, in get_tarball_info
  File "<string>", line 624, in get_https_resource_securely
  File "/usr/lib/python3.13/http/client.py", line 1472, in connect
    super().connect()
    ~~~~~~~~~~~~~~~^^
  File "/usr/lib/python3.13/http/client.py", line 1003, in connect
    self.sock = self._create_connection(
                ~~~~~~~~~~~~~~~~~~~~~~~^
        (self.host,self.port), self.timeout, self.source_address)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/socket.py", line 840, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
               ~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/socket.py", line 977, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
               ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
socket.gaierror: [Errno -3] Temporary failure in name resolution

[shuvashish76]

Sorry, some misconfiguration at my side. From OpenSnitch allowed Calibre as always now it downloads 8.16.2. Marking this thread as Solved