I thinkI've done something wrong because this is the log:
Spoiler:
File "runpy.py", line 198, in _run_module_as_main
File "runpy.py", line 88, in _run_code
File "site.py", line 95, in <module>
File "site.py", line 90, in main
File "site.py", line 50, in run_entry_point
File "C:\git\calibre\src\calibre\debug.py", line 233, in main
File "C:\git\calibre\src\calibre\debug.py", line 189, in run_debug_gui
File "C:\git\calibre\src\calibre\gui_launch.py", line 73, in calibre
File "C:\git\calibre\src\calibre\gui2\main.py", line 552, in main
File "C:\git\calibre\src\calibre\gui2\main.py", line 564, in run_main
File "C:\git\calibre\src\calibre\gui2\main.py", line 402, in run_gui
File "C:\git\calibre\src\calibre\gui2\main.py", line 418, in run_gui_
File "C:\git\calibre\src\calibre\gui2\actions\show_temp late_tester.py", line 67, in show_template_editor
File "C:\git\calibre\src\calibre\gui2\dialogs\template_ dialog.py", line 412, in __init__