diff --git a/python-pexpect.spec b/python-pexpect.spec
index 424938f..a392d1d 100644
--- a/python-pexpect.spec
+++ b/python-pexpect.spec
@@ -1,17 +1,16 @@
 %global _empty_manifest_terminate_build 0
-Name:		python-pexpect
-Version:	4.8.0
-Release:	1
-Summary:	Pexpect allows easy control of interactive console applications.
-License:	ISC license
-URL:		https://pexpect.readthedocs.io/
-Source0:	https://files.pythonhosted.org/packages/e5/9b/ff402e0e930e70467a7178abb7c128709a30dfb22d8777c043e501bc1b10/pexpect-4.8.0.tar.gz
-BuildArch:	noarch
+Name:                python-pexpect
+Version:             4.8.0
+Release:             1
+Summary:             Pexpect allows easy control of interactive console applications.
+License:             ISC license
+URL:                 https://pexpect.readthedocs.io/
+Source0:             https://files.pythonhosted.org/packages/e5/9b/ff402e0e930e70467a7178abb7c128709a30dfb22d8777c043e501bc1b10/pexpect-4.8.0.tar.gz
+BuildArch:           noarch
 
-Requires:	python3-ptyprocess
+Requires:            python3-ptyprocess
 
 %description
-
 Pexpect is a pure Python module for spawning child applications; controlling
 them; and responding to expected patterns in their output. Pexpect works like
 Don Libes' Expect. Pexpect allows your script to spawn a child application and
@@ -24,10 +23,9 @@ automated software testing. Pexpect is in the spirit of Don Libes' Expect, but
 Pexpect is pure Python.
 
 %package -n python3-pexpect
-Summary:	Pexpect allows easy control of interactive console applications.
-Provides:	python-pexpect
-BuildRequires:	python3-devel
-BuildRequires:	python3-setuptools
+Summary:             Pexpect allows easy control of interactive console applications.
+Provides:            python-pexpect
+BuildRequires:       python3-devel python3-setuptools
 
 %description -n python3-pexpect
 Pexpect is a pure Python module for spawning child applications; controlling
@@ -42,8 +40,8 @@ automated software testing. Pexpect is in the spirit of Don Libes' Expect, but
 Pexpect is pure Python.
 
 %package help
-Summary:	Development documents and examples for pexpect
-Provides:	python3-pexpect-doc
+Summary:             Development documents and examples for pexpect
+Provides:            python3-pexpect-doc
 
 %description help
 Pexpect is a pure Python module for spawning child applications; controlling
@@ -72,20 +70,20 @@ if [ -d example ]; then cp -arf example %{buildroot}/%{_pkgdocdir}; fi
 if [ -d examples ]; then cp -arf examples %{buildroot}/%{_pkgdocdir}; fi
 pushd %{buildroot}
 if [ -d usr/lib ]; then
-	find usr/lib -type f -printf "/%h/%f\n" >> filelist.lst
+    find usr/lib -type f -printf "/%h/%f\n" >> filelist.lst
 fi
 if [ -d usr/lib64 ]; then
-	find usr/lib64 -type f -printf "/%h/%f\n" >> filelist.lst
+    find usr/lib64 -type f -printf "/%h/%f\n" >> filelist.lst
 fi
 if [ -d usr/bin ]; then
-	find usr/bin -type f -printf "/%h/%f\n" >> filelist.lst
+    find usr/bin -type f -printf "/%h/%f\n" >> filelist.lst
 fi
 if [ -d usr/sbin ]; then
-	find usr/sbin -type f -printf "/%h/%f\n" >> filelist.lst
+    find usr/sbin -type f -printf "/%h/%f\n" >> filelist.lst
 fi
 touch doclist.lst
 if [ -d usr/share/man ]; then
-	find usr/share/man -type f -printf "/%h/%f.gz\n" >> doclist.lst
+    find usr/share/man -type f -printf "/%h/%f.gz\n" >> doclist.lst
 fi
 popd
 mv %{buildroot}/filelist.lst .
@@ -98,5 +96,8 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
-* Sat Oct 10 2020 wangxiao <wangxiao65@huawei.com> - 4.8.0-1
+* Mon Oct 12 2020 wangxiao <wangxiao65@huawei.com> - 4.8.0-1
+- upgrade to 4.8.0, add yaml file 
+
+* Sat Oct 10 2020 Lijin Yang <yanglijin@huawei.com> - 4.6-2
 - Package init