Trouble installing v7.1.0

[kattor]

I'm running Windows 10 (on Virtualbox 6.1 on Ubuntu 20.10, but I don't think that should matter). Fresh install of Calibre 5.12, library newly imported.

I downloaded v7.1.0, and unzipped it. I go to Preferences -> Advanced -> Plugins -> Load plugin from file, select DeDRM_calibre_plugin, then DeDRM_plugin, then click Open. I get the security warning and click Yes.

I get a syntax error:

calibre 5.12 embedded-python: True is64bit: False
Windows-10-10.0.19041 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.19041')
Python 3.8.5
Windows: ('10', '10.0.19041', '', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Obok DeDRM (6, 5, 3)
Traceback (most recent call last):
File "calibre\gui2\preferences\plugins.py", line 316, in add_plugin
File "calibre\customize\ui.py", line 472, in add_plugin
File "calibre\customize\ui.py", line 61, in load_plugin
File "calibre\customize\zipplugin.py", line 293, in load
File "importlib_init_.py", line 127, in import_module
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "calibre\customize\zipplugin.py", line 185, in exec_module
File "calibre\customize\zipplugin.py", line 181, in get_code
File "calibre_plugins.dedrm.init", line 155
print u"{0} v{1}: Copying needed library files from plugin's zip".format(PLUGIN_NAME, PLUGIN_VERSION)
^
SyntaxError: invalid syntax

I can install the obok_plugin, apparently successfully, but it doesn't show up in the Calibre menu. (I guess maybe it depends on the DeDRM plugin?)

Any help would be appreciated.

[ElleKayEm]

You're trying to install an old version. Make sure you're in the unzipped 7.1.0 folder. There is no DeDRM_calibre_plugin folder with this version. And the 7.1.0 Obok plugin will also be directly in the main folder too.

[kattor]

Thank you! (Yep, I'm a total Windows newb.)