From 4f1e9fcf43b70cfb2032bf2959c5a170bc3b2225 Mon Sep 17 00:00:00 2001
From: Zhuoyun Wei <wzyboy@wzyboy.org>
Date: Wed, 18 Apr 2018 04:57:07 -0400
Subject: [PATCH] Use pylzma as a fallback

---
 DeDRM_calibre_plugin/DeDRM_plugin/ion.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/DeDRM_calibre_plugin/DeDRM_plugin/ion.py b/DeDRM_calibre_plugin/DeDRM_plugin/ion.py
index c100191..40433ca 100644
--- a/DeDRM_calibre_plugin/DeDRM_plugin/ion.py
+++ b/DeDRM_calibre_plugin/DeDRM_plugin/ion.py
@@ -23,13 +23,17 @@ from Crypto.Util.py3compat import bchr, bord
 try:
     # lzma library from calibre 2.35.0 or later
     import lzma.lzma1 as calibre_lzma
-except:
+except ImportError:
     calibre_lzma = None
     try:
         import lzma
-    except:
+    except ImportError:
         # Need pip backports.lzma on Python <3.3
-        from backports import lzma
+        try:
+            from backports import lzma
+        except ImportError:
+            # Windows-friendly choice: pylzma wheels
+            import pylzma as lzma
 
 
 TID_NULL = 0