Editor broken in 1.42

[kbatay]

The editor in 1.42 crashes with the following trace:

Traceback (most recent call last):
  File "/usr/bin/calibre-parallel", line 20, in <module>
    sys.exit(main())
  File "/usr/lib/calibre/calibre/utils/ipc/worker.py", line 195, in main
    result = func(*args, **kwargs)
  File "/usr/lib/calibre/calibre/gui2/tweak_book/main.py", line 30, in gui_main
    _run(['ebook-edit', path], notify=notify)
  File "/usr/lib/calibre/calibre/gui2/tweak_book/main.py", line 51, in _run
    from calibre.gui2.tweak_book.ui import Main
  File "/usr/lib/calibre/calibre/gui2/tweak_book/ui.py", line 37, in <module>
    from calibre.gui2.tweak_book.live_css import LiveCSS
  File "/usr/lib/calibre/calibre/gui2/tweak_book/live_css.py", line 20, in <module>
    from calibre.gui2.tweak_book.editor.text import default_font_family
  File "/usr/lib/calibre/calibre/gui2/tweak_book/editor/text.py", line 24, in <module>
    from calibre.gui2.tweak_book.editor.syntax.html import HTMLHighlighter, XMLHighlighter
  File "/usr/lib/calibre/calibre/gui2/tweak_book/editor/syntax/html.py", line 64, in <module>
    Tag = _speedup.Tag
AttributeError: 'module' object has no attribute 'Tag'

The same editor used to work fine in 1.41. Any hints?

[kovidgoyal]

Use the official calibre linux binaries from http://calibre-ebook.com/download_linux

[kbatay]

The official binaries work (well, sort of; now the Modify ePub plugin breaks, for reasons related to encoding ). But I'd still like to understand what's going on. Calibre 1.42 compiled from source has the problem noted above, which I suppose means I need to upgrade (or perhaps downgrade) some Python package(s).

[kovidgoyal]

No, that traceback indicates you have a module named html somewhere on your python path that is getting loaded before the html module from calibre. Find an remove that and you will be fine.

[kbatay]

Hmm. I did have a (trivial) html in site-python, and moving it away does indeed make the editor work. But this still doesn't look like the full story, since the module was a few month old. Why didn't it cause any problem before? Reinstalling 1.41 worked fine.

Also, possibly unrelated: I'm now running into this problem, which was supposedly solved. I'm pretty sure I'm using the latest version of the sources.

[kovidgoyal]

Because 1.42 uses a module named html and 1.41 does not. In any case, as is stated here:

http://calibre-ebook.com/download_linux

If you want to run calibre self-compiled from source, you are on your own, I really dont have the time to help with the myriad problems you are likely to encounter. If you want to run from source, use the officially supported way using CALIBRE_DEVELOP_FROM as described here: http://manual.calibre-ebook.com/develop.html