From 0b386c3cc76874afc00c50d273ecbc4a7cfe3848 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 4 Oct 2020 18:26:51 +0530
Subject: [PATCH] ODT Input: Fix a regression that broke conversion of ODT
 files with footnotes. Fixes #1898441 [Problem converting from .odt to
 .epub](https://bugs.launchpad.net/calibre/+bug/1898441)

---
 src/odf/odf2xhtml.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/odf/odf2xhtml.py b/src/odf/odf2xhtml.py
index 5669fa3feb..7d0f7e2c27 100644
--- a/src/odf/odf2xhtml.py
+++ b/src/odf/odf2xhtml.py
@@ -927,9 +927,9 @@ dl.notes dd:last-of-type { page-break-after: avoid }
 #           self.closetag('sup', False)
             self.writeout('[')
             self.opentag('a', {'href': "#citation-%d" % key})
-            self.writeout(u"\u2190%d".encode('utf-8') % key)
+            self.writeout("←%d" % key)
             self.closetag('a')
-            self.writeout(u']\xa0'.encode('utf-8'))
+            self.writeout(']\xa0')
             self.closetag('dt')
             self.opentag('dd')
             self.writeout(note['body'])
@@ -1604,7 +1604,7 @@ dl.notes dd:last-of-type { page-break-after: avoid }
         return self.xhtml()
 
     def _wlines(self,s):
-        if s != '':
+        if s:
             self.lines.append(s)
 
     def xhtml(self):
@@ -1613,7 +1613,7 @@ dl.notes dd:last-of-type { page-break-after: avoid }
         return ''.join(self.lines)
 
     def _writecss(self, s):
-        if s != '':
+        if s:
             self._csslines.append(s)
 
     def _writenothing(self, s):