Merge pull request #489 from wzyboy/backports/pylzma
Support pylzma as a fallback
This commit is contained in:
commit
dd09da7dd9
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@ -23,13 +23,17 @@ from Crypto.Util.py3compat import bchr, bord
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try:
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try:
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# lzma library from calibre 2.35.0 or later
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# lzma library from calibre 2.35.0 or later
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import lzma.lzma1 as calibre_lzma
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import lzma.lzma1 as calibre_lzma
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except:
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except ImportError:
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calibre_lzma = None
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calibre_lzma = None
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try:
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try:
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import lzma
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import lzma
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except:
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except ImportError:
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# Need pip backports.lzma on Python <3.3
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# Need pip backports.lzma on Python <3.3
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try:
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from backports import lzma
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from backports import lzma
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except ImportError:
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# Windows-friendly choice: pylzma wheels
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import pylzma as lzma
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TID_NULL = 0
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TID_NULL = 0
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@ -15,9 +15,9 @@ except ImportError:
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from StringIO import StringIO
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from StringIO import StringIO
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try:
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try:
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import ion
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except:
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from calibre_plugins.dedrm import ion
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from calibre_plugins.dedrm import ion
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except ImportError:
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import ion
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__license__ = 'GPL v3'
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__license__ = 'GPL v3'
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@ -23,13 +23,17 @@ from Crypto.Util.py3compat import bchr, bord
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try:
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try:
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# lzma library from calibre 2.35.0 or later
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# lzma library from calibre 2.35.0 or later
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import lzma.lzma1 as calibre_lzma
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import lzma.lzma1 as calibre_lzma
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except:
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except ImportError:
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calibre_lzma = None
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calibre_lzma = None
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try:
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try:
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import lzma
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import lzma
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except:
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except ImportError:
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# Need pip backports.lzma on Python <3.3
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# Need pip backports.lzma on Python <3.3
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try:
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from backports import lzma
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from backports import lzma
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except ImportError:
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# Windows-friendly choice: pylzma wheels
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import pylzma as lzma
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TID_NULL = 0
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TID_NULL = 0
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@ -15,9 +15,9 @@ except ImportError:
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from StringIO import StringIO
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from StringIO import StringIO
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try:
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try:
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import ion
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except:
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from calibre_plugins.dedrm import ion
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from calibre_plugins.dedrm import ion
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except ImportError:
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import ion
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__license__ = 'GPL v3'
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__license__ = 'GPL v3'
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@ -23,13 +23,17 @@ from Crypto.Util.py3compat import bchr, bord
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try:
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try:
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# lzma library from calibre 2.35.0 or later
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# lzma library from calibre 2.35.0 or later
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import lzma.lzma1 as calibre_lzma
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import lzma.lzma1 as calibre_lzma
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except:
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except ImportError:
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calibre_lzma = None
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calibre_lzma = None
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try:
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try:
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import lzma
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import lzma
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except:
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except ImportError:
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# Need pip backports.lzma on Python <3.3
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# Need pip backports.lzma on Python <3.3
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try:
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from backports import lzma
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from backports import lzma
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except ImportError:
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# Windows-friendly choice: pylzma wheels
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import pylzma as lzma
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TID_NULL = 0
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TID_NULL = 0
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@ -15,9 +15,9 @@ except ImportError:
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from StringIO import StringIO
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from StringIO import StringIO
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try:
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try:
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import ion
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except:
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from calibre_plugins.dedrm import ion
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from calibre_plugins.dedrm import ion
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except ImportError:
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import ion
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__license__ = 'GPL v3'
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__license__ = 'GPL v3'
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@ -107,6 +107,15 @@ In addition, Windows Users need PyCrypto:
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Once Windows users have installed Python 2.7, and the matching PyCrypto, they are ready to run the DeDRM application or individual scripts.
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Once Windows users have installed Python 2.7, and the matching PyCrypto, they are ready to run the DeDRM application or individual scripts.
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For (experimental) KFX support, you also need LZMA support. LZMA is built-in
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in Python 3.3+ but not present in Python 2. Choices are backports.lzma and
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pylzma, both of which need compiling. Compiling Python extensions on Windows
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requires Visual Studio and is a PITA. The recommended way is to install wheels
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(binary) directly.
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Windows binary wheels for backports.lzma and pylzma could be found here:
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https://www.lfd.uci.edu/~gohlke/pythonlibs/
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Apple's iBooks FairPlay DRM
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Apple's iBooks FairPlay DRM
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