!1 python-taskflow：Add source packages and spec file

From: @zhangy1317
Reviewed-by: @joec88
Signed-off-by: @joec88

python-taskflow.spec

@@ -0,0 +1,102 @@
+%global _empty_manifest_terminate_build 0
+Name:		python-taskflow
+Version:	4.5.0
+Release:	1
+Summary:	Taskflow structured state management library.
+License:	Apache-2.0
+URL:		https://github.com/openstack/taskflow
+Source0:	https://files.pythonhosted.org/packages/b0/5f/47fe65a6d42863997b30d49182dfa54d3358411fb8f196a894a85ec9bbca/taskflow-4.5.0.tar.gz
+BuildArch:	noarch
+
+Requires:	python3-automaton
+Requires:	python3-cachetools
+Requires:	python3-fasteners
+Requires:	python3-futurist
+Requires:	python3-jsonschema
+Requires:	python3-networkx
+Requires:	python3-pbr
+Requires:	python3-pydot
+Requires:	python3-six
+Requires:	python3-stevedore
+Requires:	python3-tenacity
+Requires:	python3-PyMySQL
+Requires:	python3-SQLAlchemy
+Requires:	python3-SQLAlchemy-Utils
+Requires:	python3-alembic
+Requires:	python3-psycopg2
+Requires:	python3-eventlet
+Requires:	python3-redis
+Requires:	python3-hacking
+Requires:	python3-mock
+Requires:	python3-oslotest
+Requires:	python3-pydotplus
+Requires:	python3-stestr
+Requires:	python3-testscenarios
+Requires:	python3-testtools
+Requires:	python3-kombu
+Requires:	python3-kazoo
+Requires:	python3-zake
+
+%description
+A library to complete workflows/tasks in HA manner
+
+
+%package -n python3-taskflow
+Summary:	Taskflow structured state management library.
+Provides:	python-taskflow
+BuildRequires:	python3-devel
+BuildRequires:	python3-setuptools
+%description -n python3-taskflow
+A library to complete workflows/tasks in HA manner
+
+
+%package help
+Summary:	Development documents and examples for taskflow
+Provides:	python3-taskflow-doc
+%description help
+A library to complete workflows/tasks in HA manner
+
+
+%prep
+%autosetup -n taskflow-4.5.0
+
+%build
+%py3_build
+
+%install
+%py3_install
+install -d -m755 %{buildroot}/%{_pkgdocdir}
+if [ -d doc ]; then cp -arf doc %{buildroot}/%{_pkgdocdir}; fi
+if [ -d docs ]; then cp -arf docs %{buildroot}/%{_pkgdocdir}; fi
+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
+fi
+if [ -d usr/lib64 ]; then
+	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
+fi
+if [ -d usr/sbin ]; then
+	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
+fi
+popd
+mv %{buildroot}/filelist.lst .
+mv %{buildroot}/doclist.lst .
+
+%files -n python3-taskflow -f filelist.lst
+%dir %{python3_sitelib}/*
+
+%files help -f doclist.lst
+%{_docdir}/*
+
+%changelog
+* Thu Dec 31 2020 Python_Bot <Python_Bot@openeuler.org>
+- Package Spec generated