diff -Nru dstat-0.7.4/debian/changelog dstat-0.7.4/debian/changelog
--- dstat-0.7.4/debian/changelog	2019-08-04 18:47:20.000000000 +0000
+++ dstat-0.7.4/debian/changelog	2021-04-07 20:31:28.000000000 +0000
@@ -1,3 +1,11 @@
+dstat (0.7.4-6.1) unstable; urgency=medium
+
+  * Non-maintainer upload.
+  * Apply patch to fix SyntaxWarnings from python3.9. (Closes: #976678)
+    Thanks: Cam Hutchison, Andres Salomon
+
+ -- Chris Hofstaedtler <zeha@debian.org>  Wed, 07 Apr 2021 20:31:28 +0000
+
 dstat (0.7.4-6) unstable; urgency=medium
 
   * debian/patches/make-test-no-plugins: there is a misterious failure to test
diff -Nru dstat-0.7.4/debian/patches/python3 dstat-0.7.4/debian/patches/python3
--- dstat-0.7.4/debian/patches/python3	2019-07-29 11:41:41.000000000 +0000
+++ dstat-0.7.4/debian/patches/python3	2021-04-07 20:31:28.000000000 +0000
@@ -3,13 +3,39 @@
 Bug-Debian: https://bugs.debian.org/857973
 Last-Update: 2019-07-29
 
-diff --git a/dstat b/dstat
-index 9359965..f250f06 100755
---- a/dstat
-+++ b/dstat
+Index: dstat/dstat
+===================================================================
+--- dstat.orig/dstat
++++ dstat/dstat
 @@ -1,4 +1,4 @@
 -#!/usr/bin/env python
 +#!/usr/bin/env python3
  
  ### This program is free software; you can redistribute it and/or
  ### modify it under the terms of the GNU General Public License
+Index: dstat/plugins/dstat_mysql_keys.py
+===================================================================
+--- dstat.orig/plugins/dstat_mysql_keys.py
++++ dstat/plugins/dstat_mysql_keys.py
+@@ -38,7 +38,7 @@ class dstat_plugin(dstat):
+             for name in self.vars: self.val[name] = -1
+ 
+         except Exception as e:
+-            if op.debug > 1: print('%s: exception' (self.filename, e))
++            if op.debug > 1: print('%s: exception: %s' % (self.filename, e))
+             for name in self.vars: self.val[name] = -1
+ 
+ # vim:ts=4:sw=4:et
+Index: dstat/plugins/dstat_squid.py
+===================================================================
+--- dstat.orig/plugins/dstat_squid.py
++++ dstat/plugins/dstat_squid.py
+@@ -45,7 +45,7 @@ class dstat_plugin(dstat):
+             if op.debug > 1: print('%s: lost pipe to squidclient, %s' % (self.filename, e))
+             for name in self.vars: self.val[name] = -1
+         except Exception as e:
+-            if op.debug > 1: print('%s: exception' (self.filename, e))
++            if op.debug > 1: print('%s: exception: %s' % (self.filename, e))
+             for name in self.vars: self.val[name] = -1
+ 
+ # vim:ts=4:sw=4:et