From 3ac6c9ec3a6d24c7ecd9c77464aaf65d7c0aee43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cristi=20V=C3=AEjdea?= <cristi@cvjd.me>
Date: Sun, 9 Sep 2018 22:29:11 +0300
Subject: [PATCH] Remove dependency on future

Sole use was raise_from.

six.raise_from loses exception detail on Python 2, so god help the programmers of the past.

Fixes #196.
---
 requirements/base.txt  | 1 -
 src/drf_yasg/codecs.py | 2 +-
 tox.ini                | 2 +-
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/requirements/base.txt b/requirements/base.txt
index 0cfefb0..188a36d 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -2,7 +2,6 @@ coreapi>=2.3.3
 coreschema>=0.0.4
 ruamel.yaml>=0.15.34
 inflection>=0.3.1
-future>=0.16.0
 six>=1.10.0
 uritemplate>=3.0.0
 
diff --git a/src/drf_yasg/codecs.py b/src/drf_yasg/codecs.py
index c150d50..83563ea 100644
--- a/src/drf_yasg/codecs.py
+++ b/src/drf_yasg/codecs.py
@@ -1,4 +1,4 @@
-from future.utils import raise_from
+from six import raise_from
 
 import copy
 import json
diff --git a/tox.ini b/tox.ini
index a206c4b..0e385d1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -60,7 +60,7 @@ not_skip = __init__.py
 atomic = true
 multi_line_output = 5
 line_length = 120
-known_future_library = future,six
+known_future_library = six
 known_standard_library =
     collections,copy,distutils,functools,inspect,io,json,logging,operator,os,pkg_resources,re,setuptools,sys,
     types,warnings