Stand-alone App (Windows) doesn't work

[fireattack]

It says ""ImportError: No module named calibre_plugins.dedrm".

F:\DeDRM_App\DeDRM_lib>py -2 DeDRM_App.pyw B076HLXHM7_EBOK.azw
Using Library AlfCrypto DLL/DYLIB/SO
Traceback (most recent call last):
  File "DeDRM_App.pyw", line 66, in <module>
    from scriptinterface import decryptepub, decryptpdb, decryptpdf, decryptk4mo
bi
  File "F:\DeDRM_App\DeDRM_lib\lib\scriptinterface.py", line 14, in <module>
    import k4mobidedrm
  File "F:\DeDRM_App\DeDRM_lib\lib\k4mobidedrm.py", line 93, in <module>
    import kfxdedrm
  File "F:\DeDRM_App\DeDRM_lib\lib\kfxdedrm.py", line 20, in <module>
    from calibre_plugins.dedrm import ion
ImportError: No module named calibre_plugins.dedrm

F:\DeDRM_App\DeDRM_lib>

[fireattack]

After some debugging I found that the problem is caused by the lack of backports.lzma that is used in ion.py.

(I'd agree the error info is a little bit confusing, since ion.py is called by kfxdedrm.py:

try:
    import ion
except:
    from calibre_plugins.dedrm import ion

And if ion.py errors out, it will try calibre_plugins.dedrm which doesn't exist.)

The problem is gone after I installed it (I did have some trouble to install that package on Windows due to peterjc/backports.lzma#22, but that's another story).

Thanks!

[ElleKayEm]

Looks like the stand-alone Mac app is having a similar issue #505.

[fireattack]

@ElleKayEm Yeah. Also #482

[frioux]

I don't think this should be closed. If the tools depend on ion.py, the docs don't clearly say so or how to install it.

[j-howell]

The ion.py module is included in the tools in order to support Amazon Kindle KFX format. The problem is that ion.py imports lzma and and if that is not present the fallback handling produces a misleading error message.

It appears that a fix has already been made (#489) and should be in the next release of the tools.

[frioux]

Got it. Thanks for the clarification

…

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On Sat, May 19, 2018, 9:28 AM John Howell ***@***.***> wrote: The ion.py module is included in the tools in order to support Amazon Kin dle KFX format. The problem is that ion.py imports lzma and and if that is not present the fallback handling produces a misleading error message. It appears that a fix has already been made (#489 <#489>) and should be in the next release of the tools. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#512 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAAf45fRrZKdOmNbA4utwxAVemT6kZ3Fks5t0EgVgaJpZM4UAZbQ> .