I'm running this on my system (OSX 10.9) and getting some doctest failures, apparently due to precision issues (see below). Can people please run this on theirs and see what happens, and offer ideas re: fixing it? I imagine something like setting the precision of numpy printouts will do, but it would be best if that can be a global setting.

In the meantime, I might not run the doctests in this script, so that people don't incorrectly fail their check_env for the SciPy 2014 tutorial... Thoughts?

........................................F.F...................................F./Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py:4: skimage_deprecation: Call to deprecated function ``label``. Use ``skimage.measure.label`` instead.
  return _label(input, neighbors, background, return_num)
..F.......................................................
======================================================================
FAIL: Doctest: skimage.feature.texture.greycoprops
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 2226, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for skimage.feature.texture.greycoprops
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/feature/texture.py", line 125, in greycoprops

----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/feature/texture.py", line 176, in skimage.feature.texture.greycoprops
Failed example:
    contrast
Expected:
    array([[ 0.58333333,  1.        ],
           [ 1.25      ,  2.75      ]])
Got:
    array([[ 0.5833333333,  1.          ],
           [ 1.25        ,  2.75        ]])


======================================================================
FAIL: Doctest: skimage.filter._gaussian.gaussian_filter
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 2226, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for skimage.filter._gaussian.gaussian_filter
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/filter/_gaussian.py", line 13, in gaussian_filter

----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/filter/_gaussian.py", line 73, in skimage.filter._gaussian.gaussian_filter
Failed example:
    gaussian_filter(a, sigma=0.4)  # mild smoothing
Expected:
    array([[ 0.00163116,  0.03712502,  0.00163116],
           [ 0.03712502,  0.84496158,  0.03712502],
           [ 0.00163116,  0.03712502,  0.00163116]])
Got:
    array([[ 0.0016311596,  0.0371250207,  0.0016311596],
           [ 0.0371250207,  0.8449615765,  0.0371250207],
           [ 0.0016311596,  0.0371250207,  0.0016311596]])
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/filter/_gaussian.py", line 77, in skimage.filter._gaussian.gaussian_filter
Failed example:
    gaussian_filter(a, sigma=1)  # more smooting
Expected:
    array([[ 0.05855018,  0.09653293,  0.05855018],
           [ 0.09653293,  0.15915589,  0.09653293],
           [ 0.05855018,  0.09653293,  0.05855018]])
Got:
    array([[ 0.0585501805,  0.096532928 ,  0.0585501805],
           [ 0.096532928 ,  0.1591558917,  0.096532928 ],
           [ 0.0585501805,  0.096532928 ,  0.0585501805]])
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/filter/_gaussian.py", line 82, in skimage.filter._gaussian.gaussian_filter
Failed example:
    gaussian_filter(a, sigma=1, mode='reflect')
Expected:
    array([[ 0.08767308,  0.12075024,  0.08767308],
           [ 0.12075024,  0.16630671,  0.12075024],
           [ 0.08767308,  0.12075024,  0.08767308]])
Got:
    array([[ 0.0876730803,  0.1207502431,  0.0876730803],
           [ 0.1207502431,  0.1663067063,  0.1207502431],
           [ 0.0876730803,  0.1207502431,  0.0876730803]])


======================================================================
FAIL: Doctest: skimage.measure._label.label
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 2226, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for skimage.measure._label.label
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line unknown line number, in label

----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line ?, in skimage.measure._label.label
Failed example:
    x = np.eye(3).astype(int)
Exception raised:
    Traceback (most recent call last):
      File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 1315, in __run
        compileflags, 1) in test.globs
      File "<doctest skimage.measure._label.label[0]>", line 1, in <module>
        x = np.eye(3).astype(int)
    NameError: name 'np' is not defined
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line ?, in skimage.measure._label.label
Failed example:
    print(x)
Exception raised:
    Traceback (most recent call last):
      File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 1315, in __run
        compileflags, 1) in test.globs
      File "<doctest skimage.measure._label.label[1]>", line 1, in <module>
        print(x)
    NameError: name 'x' is not defined
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line ?, in skimage.measure._label.label
Failed example:
    print(m.label(x, neighbors=4))
Exception raised:
    Traceback (most recent call last):
      File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 1315, in __run
        compileflags, 1) in test.globs
      File "<doctest skimage.measure._label.label[2]>", line 1, in <module>
        print(m.label(x, neighbors=4))
    NameError: name 'm' is not defined
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line ?, in skimage.measure._label.label
Failed example:
    print(m.label(x, neighbors=8))
Exception raised:
    Traceback (most recent call last):
      File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 1315, in __run
        compileflags, 1) in test.globs
      File "<doctest skimage.measure._label.label[3]>", line 1, in <module>
        print(m.label(x, neighbors=8))
    NameError: name 'm' is not defined
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line ?, in skimage.measure._label.label
Failed example:
    x = np.array([[1, 0, 0],
                  [1, 1, 5],
                  [0, 0, 0]])
Exception raised:
    Traceback (most recent call last):
      File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 1315, in __run
        compileflags, 1) in test.globs
      File "<doctest skimage.measure._label.label[4]>", line 1, in <module>
        x = np.array([[1, 0, 0],
    NameError: name 'np' is not defined
----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/_label.py", line ?, in skimage.measure._label.label
Failed example:
    print(m.label(x, background=0))
Exception raised:
    Traceback (most recent call last):
      File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 1315, in __run
        compileflags, 1) in test.globs
      File "<doctest skimage.measure._label.label[5]>", line 1, in <module>
        print(m.label(x, background=0))
    NameError: name 'm' is not defined


======================================================================
FAIL: Doctest: skimage.measure.fit.ransac
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/doctest.py", line 2226, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for skimage.measure.fit.ransac
  File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/fit.py", line 470, in ransac

----------------------------------------------------------------------
File "/Users/nuneziglesiasj/anaconda/lib/python2.7/site-packages/skimage/measure/fit.py", line 576, in skimage.measure.fit.ransac
Failed example:
    ransac_model.params
Expected:
    array([ 20.12762373,  29.73563063,   4.81499637,  10.4743584 ,   0.05217117])
Got:
    array([ 20.1276237259,  29.7356306313,   4.8149963715,  10.474358404 ,
             0.0521711691])