ZCML File
configure.zcml

<configure
    xmlns="http://namespaces.zope.org/zope"
    xmlns:apidoc="http://namespaces.zope.org/apidoc"
    xmlns:zcml="http://namespaces.zope.org/zcml"
    i18n_domain="zope"
    >
<include
    file="enabled.zcml"
    zcml:condition="have devmode"
    />
<include
    file="disabled.zcml"
    zcml:condition="not-have devmode"
    />
</configure>