[jaapx]

I tried to use calibre on win7-32bits.
I get the error:
Python function terminated unexpectedly
MemoryLoadLibrary() failed loading PyQt5\QtWidgets.pyd (Error Code: 1)

I got the following debug output:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\jaap>calibre-debug -g
calibre 2.41 isfrozen: True is64bit: False
Windows-7-6.1.7601-SP1 Windows ('32bit', 'WindowsPE')
('Windows', '7', '6.1.7601')
Python 2.7.9
Windows: ('7', '6.1.7601', 'SP1', 'Multiprocessor Free')
Python function terminated unexpectedly
MemoryLoadLibrary() failed loading PyQt5\QtWidgets.pyd (Error Code: 1)
Traceback (most recent call last):
File "site.py", line 132, in main
File "site.py", line 109, in run_entry_point
File "site-packages\calibre\debug.py", line 223, in main
File "site-packages\calibre\gui_launch.py", line 61, in calibre
File "site-packages\calibre\gui_launch.py", line 48, in register_with_default_
programs
File "site.py", line 50, in load_module
File "site-packages\calibre\gui2\__init__.py", line 8, in <module>
File "site.py", line 60, in load_module
ImportError: MemoryLoadLibrary() failed loading PyQt5\QtWidgets.pyd

C:\Users\jaap>