diff --git a/pubs/beets_ui.py b/pubs/beets_ui.py
index bb839bc..1adf87a 100644
--- a/pubs/beets_ui.py
+++ b/pubs/beets_ui.py
@@ -18,8 +18,7 @@
 import locale
 import sys
 
-from . import p3
-from p3 import input
+from .p3 import input
 
 
 class UserError(Exception):
diff --git a/pubs/bibstruct.py b/pubs/bibstruct.py
index c3e481e..9b85728 100644
--- a/pubs/bibstruct.py
+++ b/pubs/bibstruct.py
@@ -1,11 +1,11 @@
 import unicodedata
 import re
 
-from .p3 import ustr
+from .p3 import ustr, uchr
 
     # citekey stuff
 
-CONTROL_CHARS = ''.join(map(unichr, range(0, 32) + range(127, 160)))
+CONTROL_CHARS = ''.join(map(uchr, list(range(0, 32)) + list(range(127, 160))))
 CITEKEY_FORBIDDEN_CHARS = '@\'\\,#}{~%/'  # '/' is OK for bibtex but forbidden
 # here since we transform citekeys into filenames
 CITEKEY_EXCLUDE_RE = re.compile('[%s]'
diff --git a/pubs/commands/__init__.py b/pubs/commands/__init__.py
index a68ab16..60f514f 100644
--- a/pubs/commands/__init__.py
+++ b/pubs/commands/__init__.py
@@ -1,19 +1,19 @@
 # core
-import init_cmd
-import add_cmd
-import rename_cmd
-import remove_cmd
-import list_cmd
+from . import init_cmd
+from . import add_cmd
+from . import rename_cmd
+from . import remove_cmd
+from . import list_cmd
 # doc
-import attach_cmd
-import open_cmd
-import tag_cmd
-import note_cmd
+from . import attach_cmd
+from . import open_cmd
+from . import tag_cmd
+from . import note_cmd
 # bulk
-import export_cmd
-import import_cmd
+from . import export_cmd
+from . import import_cmd
 # bonus
-import websearch_cmd
+from . import websearch_cmd
 
-import edit_cmd
-# import update_cmd
+from . import edit_cmd
+# from . import update_cmd
diff --git a/pubs/commands/add_cmd.py b/pubs/commands/add_cmd.py
index 7c5bba3..8800b7a 100644
--- a/pubs/commands/add_cmd.py
+++ b/pubs/commands/add_cmd.py
@@ -112,6 +112,6 @@ def command(args):
     try:
         p.docpath = docfile
         rp.push_paper(p)
-    except ValueError, v:
+    except ValueError as v:
         ui.error(v.message)
         ui.exit(1)
diff --git a/pubs/commands/attach_cmd.py b/pubs/commands/attach_cmd.py
index dc5e6bf..0ecf1d8 100644
--- a/pubs/commands/attach_cmd.py
+++ b/pubs/commands/attach_cmd.py
@@ -39,9 +39,9 @@ def command(args):
             pass # TODO warn if file does not exists
         paper.docpath = document
         rp.push_paper(paper, overwrite=True, event=False)
-    except ValueError, v:
+    except ValueError as v:
         ui.error(v.message)
         ui.exit(1)
-    except IOError, v:
+    except IOError as v:
         ui.error(v.message)
         ui.exit(1)
diff --git a/pubs/content.py b/pubs/content.py
index 8b89b31..f113f9b 100644
--- a/pubs/content.py
+++ b/pubs/content.py
@@ -3,9 +3,7 @@ import subprocess
 import tempfile
 import shutil
 
-import urlparse
-import httplib
-import urllib2
+from .p3 import urlparse, HTTPConnection, urlopen
 
 
 # files i/o
@@ -62,7 +60,7 @@ def system_path(path):
 # dealing with formatless content
 
 def content_type(path):
-    parsed = urlparse.urlparse(path)
+    parsed = urlparse(path)
     if parsed.scheme == 'http':
         return 'url'
     else:
@@ -70,8 +68,8 @@ def content_type(path):
 
 
 def url_exists(url):
-    parsed = urlparse.urlparse(url)
-    conn = httplib.HTTPConnection(parsed.netloc)
+    parsed = urlparse(url)
+    conn = HTTPConnection(parsed.netloc)
     conn.request('HEAD', parsed.path)
     response = conn.getresponse()
     conn.close()
diff --git a/pubs/filebroker.py b/pubs/filebroker.py
index 1c0beb0..09e6079 100644
--- a/pubs/filebroker.py
+++ b/pubs/filebroker.py
@@ -1,6 +1,6 @@
 import os
 import re
-import urlparse
+from .p3 import urlparse
 
 from .content import (check_file, check_directory, read_file, write_file,
                       system_path, check_content, content_type, get_content)
@@ -125,7 +125,7 @@ class DocBroker(object):
 
     def in_docsdir(self, docpath):
         try:
-            parsed = urlparse.urlparse(docpath)
+            parsed = urlparse(docpath)
         except Exception:
             return False
         return parsed.scheme == self.scheme
@@ -139,7 +139,7 @@ class DocBroker(object):
             Return absoluted paths of regular ones otherwise.
         """
         if self.in_docsdir(docpath):
-            parsed = urlparse.urlparse(docpath)
+            parsed = urlparse(docpath)
             if parsed.path == '':
                 docpath = os.path.join(self.docdir, parsed.netloc)
             else:
diff --git a/pubs/p3.py b/pubs/p3.py
index 4897960..9257eab 100644
--- a/pubs/p3.py
+++ b/pubs/p3.py
@@ -5,10 +5,18 @@ if sys.version_info[0] == 2:
     import StringIO as io
     input = raw_input
     ustr = unicode
+    uchr = unichr
+    from urlparse import urlparse
+    from urllib2 import urlopen
+    from httplib import HTTPConnection
 else:
     import configparser
     import io
     ustr = str
+    uchr = chr
+    from urllib.parse import urlparse
+    from urllib.request import urlopen
+    from http.client import HTTPConnection
 
 configparser = configparser
 io = io
diff --git a/pubs/repo.py b/pubs/repo.py
index 9afc9d8..7ff8354 100644
--- a/pubs/repo.py
+++ b/pubs/repo.py
@@ -3,7 +3,7 @@ from datetime import datetime
 
 from . import bibstruct
 from . import events
-from datacache import DataCache
+from .datacache import DataCache
 from .paper import Paper
 
 
diff --git a/tests/test_color.py b/tests/test_color.py
index 58ba672..0590ecf 100644
--- a/tests/test_color.py
+++ b/tests/test_color.py
@@ -1,10 +1,12 @@
 import dotdot
 from pubs import color
 
+
 def perf_color():
-    s = str(range(1000))
+    s = str(list(range(1000)))
     for _ in range(5000000):
         color.dye(s, color.red)
 
+
 if __name__ == '__main__':
     perf_color()
diff --git a/tests/test_endecoder.py b/tests/test_endecoder.py
index f176f9b..4dd72be 100644
--- a/tests/test_endecoder.py
+++ b/tests/test_endecoder.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import print_function
 import unittest
 
 import yaml
@@ -8,6 +9,7 @@ from pubs import endecoder
 
 from str_fixtures import bibtex_raw0, metadata_raw0, turing_bib
 
+
 def compare_yaml_str(s1, s2):
     if s1 == s2:
         return True
@@ -72,9 +74,9 @@ class TestEnDecode(unittest.TestCase):
         biblines = turing_bib.splitlines()
         biblines.insert(-3, keyword_str)
         bibsrc = '\n'.join(biblines)
-        print bibsrc
+        print(bibsrc)
         entry = decoder.decode_bibdata(bibsrc)['turing1950computing']
-        print entry
+        print(entry)
         self.assertNotIn(u'keywords', entry)
         self.assertIn(u'keyword', entry)
         self.assertEqual(set(keywords), set(entry[u'keyword']))
diff --git a/tests/test_usecase.py b/tests/test_usecase.py
index 3856624..bf60fe6 100644
--- a/tests/test_usecase.py
+++ b/tests/test_usecase.py
@@ -1,3 +1,4 @@
+from __future__ import print_function
 import unittest
 import re
 import os
@@ -145,9 +146,9 @@ class TestList(DataCommandTestCase):
                 'pubs list',
                 ]
         outs = self.execute_cmds(cmds)
-        print outs[1].splitlines()
+        print(outs[1].splitlines())
         self.assertEquals(0, len(outs[1].splitlines()))
-        print outs[3].splitlines()
+        print(outs[3].splitlines())
         self.assertEquals(1, len(outs[3].splitlines()))
 
     def test_list_several_no_date(self):
@@ -162,11 +163,11 @@ class TestList(DataCommandTestCase):
                 'pubs list',
                 ]
         outs = self.execute_cmds(cmds)
-        print outs[0].splitlines()
+        print(outs[0].splitlines())
         self.assertEquals(4, len(outs[0].splitlines()))
-        print outs[2].splitlines()
+        print(outs[2].splitlines())
         self.assertEquals(3, len(outs[2].splitlines()))
-        print outs[4].splitlines()
+        print(outs[4].splitlines())
         self.assertEquals(4, len(outs[4].splitlines()))
         # Last added should be last
         self.assertEquals('[Page99]', outs[4].splitlines()[-1][:8])
@@ -178,7 +179,7 @@ class TestList(DataCommandTestCase):
                 'pubs list title:language author:Saunders',
                 ]
         outs = self.execute_cmds(cmds)
-        print outs[-1]
+        print(outs[-1])
         self.assertEquals(1, len(outs[-1].splitlines()))
 
     def test_list_ignore_case(self):
@@ -188,7 +189,7 @@ class TestList(DataCommandTestCase):
                 'pubs list --ignore-case title:lAnguAge author:saunders',
                 ]
         outs = self.execute_cmds(cmds)
-        print outs[-1]
+        print(outs[-1])
         self.assertEquals(1, len(outs[-1].splitlines()))
 
     def test_list_force_case(self):
@@ -249,7 +250,7 @@ class TestUsecase(DataCommandTestCase):
                ]
         self.execute_cmds(cmds)
         docdir = self.fs['os'].path.expanduser('~/.pubs/doc/')
-        print self.fs['os'].listdir(docdir)
+        print(self.fs['os'].listdir(docdir))
         self.assertNotIn('turing-mind-1950.pdf', self.fs['os'].listdir(docdir))
 
     def test_editor_abort(self):