diff --git a/blktrace.spec b/blktrace.spec
index b47e7b5cbde032fcf6dcbac9a9c1cc6a86fcedc9..91ab181962bceff5e365d801dc1e46bcbeb24a0e 100644
--- a/blktrace.spec
+++ b/blktrace.spec
@@ -1,17 +1,18 @@
 Name:    blktrace
 Version: 1.2.0
-Release: 9
+Release: 11
 Summary: Block IO tracer in the Linux kernel
 License: GPLv2+
 Source:  http://brick.kernel.dk/snaps/blktrace-%{version}.tar.bz2
 URL:     http://brick.kernel.dk/snaps
 
-BuildRequires: gcc, git, xz, libaio-devel, python2, librsvg2-devel blktrace sysstat theora-tools
+BuildRequires: gcc, git, xz, libaio-devel, python3, librsvg2-devel blktrace sysstat theora-tools
 Provides:      iowatcher
 Obsoletes:     iowatcher
-Requires:      python2
+Requires:      python3
 
 Patch0: blktrace-fix-btt-overflow.patch
+Patch1: remove-python2-dependency.patch
 
 %description
 blktrace is a block layer IO tracing mechanism which provides detailed
@@ -46,6 +47,12 @@ make dest=%{buildroot} prefix=%{buildroot}/%{_prefix} mandir=%{buildroot}/%{_man
 %{_mandir}/man8/*
 
 %changelog
+* Mon Feb 17 2020 sunshihao<sunshihao@huawei.com> - 1.2.0-11
+- Type:enhancemnet
+- ID:NA
+- SUG:restart
+- DESCi:blktrace remove python2 dependency
+
 * Fri Aug 30 2019 zoujing<zoujing13@huawei.com> - 1.2.0-10
 - Type:enhancemnet
 - ID:NA
diff --git a/remove-python2-dependency.patch b/remove-python2-dependency.patch
new file mode 100644
index 0000000000000000000000000000000000000000..4ace0f6b53aafcda77d442692e92092014228aa4
--- /dev/null
+++ b/remove-python2-dependency.patch
@@ -0,0 +1,36 @@
+From d8b5a8105a76d390ae9bb197448235dfc663fdac Mon Sep 17 00:00:00 2001
+From: sunshihao <sunshihao@huawei.com>
+Date: Mon, 3 Feb 2020 17:58:10 +0800
+Subject: [PATCH] blktrace: remove python2 dedpendency
+
+in order to remove python2 dependency,we
+use python3 as Default interpreter.
+
+Signed-off-by: sunshihao <sunshihao@huawei.com>
+---
+ btt/bno_plot.py | 2 +-
+ btt/btt_plot.py | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/btt/bno_plot.py b/btt/bno_plot.py
+index aa92480..bb0cae7 100644
+--- a/btt/bno_plot.py
++++ b/btt/bno_plot.py
+@@ -1,4 +1,4 @@
+-#! /usr/bin/env python
++#! /usr/bin/env python3
+ #
+ # btt blkno plotting interface
+ #
+diff --git a/btt/btt_plot.py b/btt/btt_plot.py
+index b81dad5..7e10f92 100755
+--- a/btt/btt_plot.py
++++ b/btt/btt_plot.py
+@@ -1,4 +1,4 @@
+-#! /usr/bin/env python
++#! /usr/bin/env python3
+ #
+ # btt_plot.py: Generate matplotlib plots for BTT generate data files
+ #
+--
+1.8.3.1