From: Yaroslav Halchenko <debian@onerussian.com>
Subject: overcome difficulty figuring out either keyrings.alt is needed

 There is no __version__ specification in keyring until 8.1.  Anyways
 we are providing *Depends within debian/control and these requirements
 are just a sanity check here

Origin: NeuroDebian
Last-Update: 2016-05-20

--- a/setup.py
+++ b/setup.py
@@ -65,6 +65,11 @@ if dist[0] == 'debian' and dist[1].split
 req_lzma = ['pyliblzma'] if sys.version_info < (3, 3) else []
 
 
+# Debian patch:  do not demand any specific version of keyring via setup
+#  we will rely on debian/control specification specific for the distribution
+#  and available versions
+keyring_requires = ['keyring']
+
 requires = {
     'core': [
         'appdirs',
