Add dependencies on python-certifi and python-urllib3.

debian/changelog

@@ -1,6 +1,7 @@
 dulwich (0.19.0-1) UNRELEASED; urgency=medium
 
   * New upstream release.
+   + Add dependencies on python-certifi and python-urllib3.
 
  -- Jelmer Vernooij <jelmer@debian.org>  Sat, 10 Mar 2018 21:31:25 +0000
 

debian/control

@@ -4,7 +4,7 @@ Priority: optional
 Maintainer: Debian Python Modules Team <python-modules-team@lists.alioth.debian.org>
 Uploaders: Jelmer Vernooij <jelmer@debian.org>
 Homepage: https://www.dulwich.io/
-Build-Depends: python-all-dev (>= 2.6.6-3), python-all-dbg (>= 2.6.6-3), python3-all-dev, python3-all-dbg, debhelper (>= 9.20160114), python-unittest2, git (>= 1:1.7.0.4-2) [!alpha !ppc64 !sparc64 !x32], python-fastimport (>= 0.9.0~bzr293), python3-fastimport, pypy-dev [!hurd-any !m68k !sh4 !x32], dh-python
+Build-Depends: python-all-dev (>= 2.6.6-3), python-all-dbg (>= 2.6.6-3), python3-all-dev, python3-all-dbg, debhelper (>= 9.20160114), python-unittest2, git (>= 1:1.7.0.4-2) [!alpha !ppc64 !sparc64 !x32], python-fastimport (>= 0.9.0~bzr293), python3-fastimport, pypy-dev [!hurd-any !m68k !sh4 !x32], dh-python, python-certifi, python3-certifi, python-urllib3, python3-urllib
 Standards-Version: 4.1.1
 X-Python-Version: >= 2.7
 X-Python3-Version: >= 3.2