metadata.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
 <maintainer type="project">
 <email>sci@gentoo.org</email>
 <name>Gentoo Science Project</name>
 </maintainer>
 <longdescription lang="en">
 ffnet is a fast and easy-to-use feed-forward neural
 network training library for python.
 </longdescription>
 <use>
 <flag name="matplotlib">Use matplotlib for drawing</flag>
 </use>
 <upstream>
 <remote-id type="pypi">ffnet</remote-id>
 <remote-id type="sourceforge">ffnet</remote-id>
 </upstream>
</pkgmetadata>