diff --git a/debian/patches/2to3.patch b/debian/patches/2to3.patch
new file mode 100644
index 0000000..32abb24
--- /dev/null
+++ b/debian/patches/2to3.patch
@@ -0,0 +1,92 @@
+Author: Andreas Tille <tille@debian.org>
+Last-Update: Fri, 24 Apr 2020 12:49:17 +0200
+Description: Test script somehow remained at Python2 -> fix this using 2to3
+
+--- a/pauvre/lsi/test.py
++++ b/pauvre/lsi/test.py
+@@ -3,10 +3,10 @@
+ # Email: splichte@princeton.edu
+ # Date: 09/02/2013
+ 
+-from lsi import intersection
++from .lsi import intersection
+ import random
+ import time, sys
+-from helper import *
++from .helper import *
+ 
+ ev = 0.00000001
+ 
+@@ -42,20 +42,20 @@ es = False
+ now = time.time()
+ for seg1 in S:
+ 	if approx_equal(seg1[0][0], seg1[1][0], ev):
+-		print 'VERTICAL SEG'
+-		print ''
+-		print ''
++		print('VERTICAL SEG')
++		print('')
++		print('')
+ 		vs = True
+ 	if approx_equal(seg1[0][1], seg1[1][1], ev):
+-		print 'HORIZONTAL SEG'
+-		print ''
+-		print ''
++		print('HORIZONTAL SEG')
++		print('')
++		print('')
+ 		hs = True
+ 	for seg2 in S:
+ 		if seg1 is not seg2 and segs_equal(seg1, seg2):
+-			print 'EQUAL SEGS'
+-			print ''
+-			print ''
++			print('EQUAL SEGS')
++			print('')
++			print('')
+ 			es = True
+ 		if seg1 is not seg2 and (seg2, seg1) not in seen:
+ 			i = intersect(seg1, seg2)
+@@ -68,17 +68,17 @@ for seg1 in S:
+ 				seen.append((seg1, seg2))
+ later = time.time()
+ n2time = later-now
+-print "Line sweep results:"
++print("Line sweep results:")
+ now = time.time()
+ lsinters = intersection(S)
+ inters = []
+-for k, v in lsinters.iteritems():
++for k, v in lsinters.items():
+ 	#print '{0}: {1}'.format(k, v)
+ 	inters.append(k)
+ #	inters.append(v)
+ later = time.time()
+-print 'TIME ELAPSED: {0}'.format(later-now)
+-print "N^2 comparison results:"
++print('TIME ELAPSED: {0}'.format(later-now))
++print("N^2 comparison results:")
+ pts_seen = []
+ highestseen = 0
+ for i in intersections:
+@@ -97,14 +97,14 @@ for i in intersections:
+ 		if approx_equal(k[0], i[0][0], ev) and approx_equal(k[1], i[0][1], ev):
+ 			in_k = True
+ 	if in_k == False:
+-		print 'Not in K: {0}: {1}'.format(i[0], i[1])
++		print('Not in K: {0}: {1}'.format(i[0], i[1]))
+ #	print i
+-print highestseen
+-print 'TIME ELAPSED: {0}'.format(n2time)
++print(highestseen)
++print('TIME ELAPSED: {0}'.format(n2time))
+ #print 'Missing from line sweep but in N^2:'
+ #for i in seen:
+ #	matched = False
+-print len(lsinters)
+-print len(pts_seen)
++print(len(lsinters))
++print(len(pts_seen))
+ if len(lsinters) != len(pts_seen):
+-	print 'uh oh!'
++	print('uh oh!')
diff --git a/debian/patches/series b/debian/patches/series
new file mode 100644
index 0000000..998d10f
--- /dev/null
+++ b/debian/patches/series
@@ -0,0 +1 @@
+2to3.patch