From bdec8b8ea705cb56440afef565bb36af88ad50e2 Mon Sep 17 00:00:00 2001
From: Hugo Lefeuvre <hle@debian.org>
Date: Tue, 22 Jan 2019 21:51:12 +0100
Subject: Fix AttributeError when plotting graph inline in jupyter notebook.

Origin: upstream
Bug-Debian: https://bugs.debian.org/862054
Applied-Upstream: https://github.com/igraph/python-igraph/commit/8864b46849b031a3013764d03e167222963c0f5d
---
 igraph/drawing/__init__.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/igraph/drawing/__init__.py b/igraph/drawing/__init__.py
index 1a232fa..b07a3b3 100644
--- a/igraph/drawing/__init__.py
+++ b/igraph/drawing/__init__.py
@@ -14,7 +14,6 @@ I'm not linking to it :)).
 
 from __future__ import with_statement
 
-from cStringIO import StringIO
 from warnings import warn
 
 import os
@@ -351,7 +350,11 @@ class Plot(object):
         context.show_page()
         surface.finish()
         # Return the raw SVG representation
-        return io.getvalue().encode("utf-8")
+        result = io.getvalue()
+        if hasattr(result, "encode"):
+            return result.encode("utf-8")          # for Python 2.x
+        else:
+            return result.decode("utf-8")          # for Python 3.x
 
     @property
     def bounding_box(self):