diff --git a/psychopy/app/_psychopyApp.py b/psychopy/app/_psychopyApp.py
index f20fa3beea8..1c1c1a91069 100755
--- a/psychopy/app/_psychopyApp.py
+++ b/psychopy/app/_psychopyApp.py
@@ -22,8 +22,10 @@
     import wx.lib.agw.advancedsplash as AS
 #NB keep imports to a minimum here because splash screen has not yet shown
 #e.g. coder and builder are imported during app.__init__ because they take a while
-from psychopy import preferences, logging#needed by splash screen for the path to resources/psychopySplash.png
-from psychopy.app import connections
+
+#needed by splash screen for the path to resources/psychopySplash.png
+from psychopy import preferences, logging, __version__
+from . import connections
 import sys, os, threading
 
 # knowing if the user has admin priv is generally a good idea for security.
diff --git a/psychopy/app/psychopyApp.py b/psychopy/app/psychopyApp.py
index 94150aa914a..a6c299853eb 100755
--- a/psychopy/app/psychopyApp.py
+++ b/psychopy/app/psychopyApp.py
@@ -7,8 +7,7 @@
 from __future__ import absolute_import, print_function
 
 import sys
-import psychopy
-from psychopy.app._psychopyApp import PsychoPyApp
+from psychopy.app._psychopyApp import PsychoPyApp, __version__
 
 #NB the PsychoPyApp classes moved to _psychopyApp.py as of version 1.78.00
 #to allow for better upgrading possibilities from the mac app bundle. this file
@@ -24,7 +23,7 @@
         sys.exit()
     if '-v' in sys.argv or '--version' in sys.argv:
         info = 'PsychoPy2, version %s (c)Jonathan Peirce 2015, GNU GPL license'
-        print(info % psychopy.__version__)
+        print(info % __version__)
         sys.exit()
     if '-h' in sys.argv or '--help' in sys.argv:
         print("""Starts the PsychoPy2 application.
diff --git a/psychopy/core.py b/psychopy/core.py
index be8b266e6df..2d9211277d4 100644
--- a/psychopy/core.py
+++ b/psychopy/core.py
@@ -9,7 +9,8 @@
 import sys, threading
 import subprocess, shlex
 
-from psychopy.clock import MonotonicClock, Clock, CountdownTimer, wait, monotonicClock, getAbsTime
+from psychopy.clock import (MonotonicClock, Clock, CountdownTimer,
+                            wait, monotonicClock, getAbsTime)
 # always safe to call rush, even if its not going to do anything for a particular OS
 from psychopy.platform_specific import rush
 from psychopy import logging
@@ -130,7 +131,6 @@ def complete(self):
         if self.win:
             self.win.recordFrameIntervals = self._winWasRecordingIntervals
         if timeRemaining<0:
-            import logging#we only do this if we need it - circular import
             logging.warn('We overshot the intended duration of %s by %.4fs. The intervening code took too long to execute.' %(self.name, abs(timeRemaining)))
             return 0
         else:
diff --git a/psychopy/data.py b/psychopy/data.py
index c8073409924..c06ad240cf5 100644
--- a/psychopy/data.py
+++ b/psychopy/data.py
@@ -4,17 +4,12 @@
 # Copyright (C) 2015 Jonathan Peirce
 # Distributed under the terms of the GNU General Public License (GPL).
 
-from psychopy import logging
-from psychopy.tools.arraytools import extendArr, shuffleArray
-from psychopy.tools.fileerrortools import handleFileCollision
-from psychopy.tools.filetools import openOutputFile, genDelimiter
-import psychopy
+from __future__ import absolute_import
+
 from pandas import DataFrame, read_csv
 import cPickle, string, sys, os, time, copy
 import numpy
 from scipy import optimize, special
-from contrib.quest import QuestObject    #used for QuestHandler
-from contrib.psi import PsiObject   #used for PsiHandler
 import inspect #so that Handlers can find the script that called them
 import codecs
 import weakref
@@ -30,6 +25,14 @@
 except ImportError:
     haveOpenpyxl=False
 
+from psychopy import logging
+from psychopy.tools.arraytools import extendArr, shuffleArray
+from psychopy.tools.fileerrortools import handleFileCollision
+from psychopy.tools.filetools import openOutputFile, genDelimiter
+import psychopy
+from psychopy.contrib.quest import QuestObject    #used for QuestHandler
+from psychopy.contrib.psi import PsiObject   #used for PsiHandler
+
 _experiments=weakref.WeakValueDictionary()
 _nonalphanumeric_re = re.compile(r'\W') # will match all bad var name chars
 
@@ -3342,13 +3345,13 @@ class PsiHandler(StairHandler):
 
     Because Psi is a Bayesian method, it can be initialized with a prior from existing research. A function
     to save the posterior over Lambda as a Numpy binary file is included.
-    
-    Kontsevich & Tyler (1999) specify their psychometric function in terms of d'. PsiHandler avoids this 
-    and treats all parameters with respect to stimulus intensity. Specifically, the forms of the psychometric 
+
+    Kontsevich & Tyler (1999) specify their psychometric function in terms of d'. PsiHandler avoids this
+    and treats all parameters with respect to stimulus intensity. Specifically, the forms of the psychometric
     function assumed for Yes/No and Two Alternative Forced Choice (2AFC) are, respectively:
-    
+
     Y(x) = .5 * delta + (1 - delta) * norm.cdf(x, mean=alpha, sd=beta)
-    
+
     Y(x) = .5 * delta + (1 - delta) * (.5 + .5 * norm.cdf(x, mean=alpha, sd=beta))
     """
 
diff --git a/psychopy/event.py b/psychopy/event.py
index d164e17fc47..86df34e1eab 100644
--- a/psychopy/event.py
+++ b/psychopy/event.py
@@ -8,11 +8,9 @@
 
 # 01/2011 modified by Dave Britton to get mouse event timing
 
+from __future__ import absolute_import
+
 import sys, time, copy
-import psychopy.core
-from psychopy.tools.monitorunittools import cm2pix, deg2pix, pix2cm, pix2deg
-from psychopy import logging
-from psychopy.constants import NOT_STARTED
 import string, numpy
 
 #try to import pyglet & pygame and hope the user has at least one of them!
@@ -23,7 +21,6 @@
     havePygame = True
 except:
     havePygame = False
-
 try:
     import pyglet
     havePyglet = True
@@ -32,6 +29,12 @@
 if havePygame: usePygame=True#will become false later if win not initialised
 else: usePygame=False
 
+import psychopy.core
+from psychopy.tools.monitorunittools import cm2pix, deg2pix, pix2cm, pix2deg
+from psychopy import logging
+from psychopy.constants import NOT_STARTED
+
+
 if havePyglet:
     from pyglet.window.mouse import LEFT, MIDDLE, RIGHT  # takes ~250ms, so do it now
     global _keyBuffer
@@ -485,9 +488,9 @@ def getWheelRel(self):
     def getVisible(self):
         """Gets the visibility of the mouse (1 or 0)
         """
-        if usePygame: 
+        if usePygame:
             return mouse.get_visible()
-        else: 
+        else:
             print("Getting the mouse visibility is not supported under pyglet, but you can set it anyway")
 
     def setVisible(self,visible):
diff --git a/psychopy/filters.py b/psychopy/filters.py
index 97488892f3e..b0ca6433756 100644
--- a/psychopy/filters.py
+++ b/psychopy/filters.py
@@ -6,6 +6,8 @@
 # Copyright (C) 2015 Jonathan Peirce
 # Distributed under the terms of the GNU General Public License (GPL).
 
+from __future__ import absolute_import
+
 import numpy
 from numpy.fft import fft2, ifft2, fftshift, ifftshift
 from psychopy import logging
diff --git a/psychopy/gamma.py b/psychopy/gamma.py
index 3e30a53744f..d5c13965384 100644
--- a/psychopy/gamma.py
+++ b/psychopy/gamma.py
@@ -5,6 +5,8 @@
 # Copyright (C) 2015 Jonathan Peirce
 # Distributed under the terms of the GNU General Public License (GPL).
 
+from __future__ import absolute_import
+
 import numpy, sys, platform, ctypes, ctypes.util
 import pyglet
 from psychopy import logging
diff --git a/psychopy/gui.py b/psychopy/gui.py
index f68f5e6cf29..aba9e0203d0 100644
--- a/psychopy/gui.py
+++ b/psychopy/gui.py
@@ -4,6 +4,8 @@
 # Copyright (C) 2015 Jonathan Peirce
 # Distributed under the terms of the GNU General Public License (GPL).
 
+from __future__ import absolute_import
+
 from psychopy import logging
 import wx
 import numpy
diff --git a/psychopy/info.py b/psychopy/info.py
index 802a0a5e86b..2918b79bbac 100644
--- a/psychopy/info.py
+++ b/psychopy/info.py
@@ -8,6 +8,8 @@
 # Copyright (C) 2015 Jonathan Peirce
 # Distributed under the terms of the GNU General Public License (GPL).
 
+from __future__ import absolute_import
+
 import sys, os, platform
 
 from psychopy import visual, logging, core, data, web
diff --git a/psychopy/locale_setup.py b/psychopy/locale_setup.py
index 6693ce344cf..cbb8510e2b7 100644
--- a/psychopy/locale_setup.py
+++ b/psychopy/locale_setup.py
@@ -13,6 +13,8 @@
 create multiple versions of an experiment.
 """
 
+from __future__ import absolute_import
+
 import platform
 mac_ver = platform.mac_ver()[0]  # e.g., '10.9.5' or '' for non-Mac
 
diff --git a/psychopy/logging.py b/psychopy/logging.py
index abd62df730c..14e6cd6628c 100644
--- a/psychopy/logging.py
+++ b/psychopy/logging.py
@@ -28,6 +28,8 @@
 #python logging module but it's simpler (no threading) and maintaining a stack
 #of log entries for later writing (don't want files written while drawing)
 
+from __future__ import absolute_import
+
 from os import path
 import sys, codecs, weakref
 from psychopy import clock
diff --git a/psychopy/makeMovies.py b/psychopy/makeMovies.py
index ec6da0ee16b..2edd90331e6 100644
--- a/psychopy/makeMovies.py
+++ b/psychopy/makeMovies.py
@@ -9,23 +9,24 @@
 building an optimised gif palette (makeRGBhistogram, makePalette, rgb2palette are
 very heavily based on his code).
 """
-from psychopy import logging
+
+from __future__ import absolute_import
+
 import string, time, tempfile, os, glob, random
 try:
     from PIL import Image, ImageChops
-    from PIL.GifImagePlugin import getheader, getdata #part of PIL
+    from PIL.GifImagePlugin import getheader, getdata
 except ImportError:
     import Image, ImageChops
-    from GifImagePlugin import getheader, getdata #part of PIL
-
+    from GifImagePlugin import getheader, getdata
 try:
     import pymedia.video.vcodec as vcodec
     havePyMedia=True
 except:
     havePyMedia=False
-
 import numpy
 
+from psychopy import logging
 
 # --------------------------------------------------------------------
 # straightforward delta encoding