diff -up Botan-1.10.17/doc/conf.py.orig Botan-1.10.17/doc/conf.py
--- Botan-1.10.17/doc/conf.py.orig	2017-10-02 08:00:00.000000000 +0200
+++ Botan-1.10.17/doc/conf.py	2021-09-11 17:57:38.159934955 +0200
@@ -40,10 +40,10 @@ version.
 def check_sphinx_version():
     import sphinx
 
-    version = map(int, sphinx.__version__.split('.'))
+    version = list(map(int, sphinx.__version__.split('.')))
     if version[0] == 1 and version[1] == 0 and version[2] < 7:
         # Exit rather than throwing to avoid a confusing backtrace
-        print "This Sphinx is too old - upgrade to at least 1.0.7"
+        print("This Sphinx is too old - upgrade to at least 1.0.7")
         import sys
         sys.exit(1)
 
@@ -66,8 +66,8 @@ source_suffix = '.txt'
 master_doc = 'contents'
 
 # General information about the project.
-project = u'botan'
-copyright = u'2000-2011, Jack Lloyd'
+project = 'botan'
+copyright = '2000-2011, Jack Lloyd'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -214,8 +214,8 @@ htmlhelp_basename = 'botandoc'
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual]).
 latex_documents = [
-  ('contents', 'botan.tex', u'botan Reference Manual',
-   u'Jack Lloyd', 'manual'),
+  ('contents', 'botan.tex', 'botan Reference Manual',
+   'Jack Lloyd', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of