diff --git a/productmd-add-support-generic-os.patch b/productmd-add-support-generic-os.patch
new file mode 100644
index 0000000..4b1e6ab
--- /dev/null
+++ b/productmd-add-support-generic-os.patch
@@ -0,0 +1,13 @@
+diff -uNrp a/productmd/treeinfo.py b/productmd/treeinfo.py
+--- a/productmd/treeinfo.py	2016-11-15 15:04:26.000000000 +0000
++++ b/productmd/treeinfo.py	2019-01-10 16:44:48.998592066 +0000
+@@ -245,6 +245,9 @@ class Release(BaseProduct):
+         elif self.name.startswith("CentOS"):
+             self.name = "CentOS"
+             self.short = "CentOS"
++        elif self.name.startswith("generic_os"):
++            self.name = "generic_os"
++            self.short = "generic_os"
+         else:
+             self.short = None
+ 
diff --git a/python-productmd.spec b/python-productmd.spec
index 6bad93b..27184aa 100644
--- a/python-productmd.spec
+++ b/python-productmd.spec
@@ -1,27 +1,20 @@
 Name:            python-productmd
 Version:         1.26
-Release:         1
+Release:         3
 Summary:         Python library providing parsers for metadata
 License:         LGPLv2+
 URL:             https://github.com/release-engineering/productmd
 Source0:         https://files.pythonhosted.org/packages/source/p/productmd/productmd-%{version}.tar.bz2
 
+Patch9000:productmd-add-support-generic-os.patch
+
 BuildArch:       noarch
 
 %description
 This package is a Python library providing parsers for metadata related to
 composes and installation media.
 
-%package      -n python2-productmd
-Summary:         productmd for python2
-Obsoletes:       productmd <= %{version}-%{release}
-Provides:        productmd = %{version}-%{release}
-BuildRequires:   python2-devel python2-setuptools python2-six
-Requires:        python2-six
-%{?python_provide:%python_provide python2-productmd}
 
-%description  -n python2-productmd
-Productmd for python2.
 
 %package      -n python3-productmd
 Summary:         productmd for python3
@@ -37,15 +30,15 @@ Productmd for python3.
 sed -i "s/generic_os/%{_vendor}/g" productmd/treeinfo.py
 
 %build
-%py2_build
+
 %py3_build
 
 %install
-%py2_install
+
 %py3_install
 
 %check
-%{__python2} ./setup.py test
+
 %{__python3} ./setup.py test
 
 %pre
@@ -56,10 +49,7 @@ sed -i "s/generic_os/%{_vendor}/g" productmd/treeinfo.py
 
 %postun
 
-%files -n python2-productmd
-%license LICENSE AUTHORS
-%{python2_sitelib}/productmd/
-%{python2_sitelib}/productmd-%{version}-py?.?.egg-info
+
 
 %files -n python3-productmd
 %license LICENSE AUTHORS
@@ -67,6 +57,18 @@ sed -i "s/generic_os/%{_vendor}/g" productmd/treeinfo.py
 %{python3_sitelib}/productmd-%{version}-py?.?.egg-info
 
 %changelog
+* Wed Nov 4 2020 wangjie<wangjie294@huawei.com> -1.26-3
+- Type:NA
+- ID:NA
+- SUG:NA
+- DESC:remove python2
+
+* Tue Oct 20 2020 tianwei <tianwei12@huawei.com> - 1.26-2
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC:add support generic os patch
+
 * Fri Jul 24 2020 tianwei <tianwei12@huawei.com> - 1.26-1
 - Type:enhancement
 - ID:NA