Fixes #933

Author: chrisgorgo

nipype/interfaces/dipy/preprocess.py

@@ -1,9 +1,12 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-# @Author: oesteban
-# @Date:   2014-09-01 10:33:35
-# @Last Modified by:   oesteban
-# @Last Modified time: 2014-09-03 15:07:46
+"""Change directory to provide relative paths for doctests
+   >>> import os
+   >>> filepath = os.path.dirname( os.path.realpath( __file__ ) )
+   >>> datadir = os.path.realpath(os.path.join(filepath, '../../testing/data'))
+   >>> os.chdir(datadir)
+"""
+
 from nipype.interfaces.base import (traits, TraitedSpec, BaseInterface,
                                     File, isdefined)
 from nipype.utils.filemanip import split_filename
@@ -23,6 +26,12 @@
 else:
     from dipy.align.aniso2iso import resample
     from dipy.core.gradients import GradientTable
+    
+try:
+    package_check('dipy', version='0.7.2')
+except Exception, e:
+    have_dipy = False
+else:
     from dipy.denoise.nlmeans import nlmeans
 
 

nipype/interfaces/dipy/tracks.py

@@ -1,4 +1,10 @@
 # -*- coding: utf-8 -*-
+"""Change directory to provide relative paths for doctests
+   >>> import os
+   >>> filepath = os.path.dirname( os.path.realpath( __file__ ) )
+   >>> datadir = os.path.realpath(os.path.join(filepath, '../../testing/data'))
+   >>> os.chdir(datadir)
+"""
 from nipype.interfaces.base import (TraitedSpec, BaseInterface, BaseInterfaceInputSpec,
                                     File, isdefined, traits)
 from nipype.utils.filemanip import split_filename