Traceback (most recent call last):


 "site-packages\calibre\customize\ui.py", line 172, in _run_filetype_plugins


 "calibre_plugins.dedrm.__init__", line 636, in run


 "calibre_plugins.dedrm.__init__", line 305, in ePubDecrypt
DeDRMError: DeDRM v6.8.0: Ultimately failed to decrypt after 0.1 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md


Traceback (most recent call last):


 "<string>", line 1, in <module>


 "/tmp/pip-build-lq905omt/pyarrow/setup.py", line 37, in <module>

from Cython.Distutils import build_ext as _build_ext

ModuleNotFoundError: No module named 'Cython'
