added import of pil in .travis, removed plots

.travis.yml

@@ -35,7 +35,7 @@ before_install:
   - sudo apt-get install gfortran
 # Install packages
 install:
-  - conda install --yes python=$TRAVIS_PYTHON_VERSION numpy scipy pytest matplotlib nose pytest-pep8 pytest-cov mpmath
+  - conda install --yes python=$TRAVIS_PYTHON_VERSION numpy scipy pytest matplotlib nose pytest-pep8 pytest-cov mpmath pil
   - pip install numdifftools
   - pip install coveralls
   - pip install codecov

wafo/containers.py

@@ -64,14 +64,16 @@ class PlotData(object):
 
     # Plot 2 objects in one call
     >>> d2 = PlotData(np.sin(x), x, xlab='x', ylab='sin', title='sinus')
-    >>> h = d2.plot()
+
-    >>> h1 = d2()
+    h = d2.plot()
+    h1 = d2()
 
     Plot with confidence interval
     >>> d3 = PlotData(np.sin(x), x)
     >>> d3.children = [PlotData(np.vstack([np.sin(x)*0.9, np.sin(x)*1.2]).T,x)]
     >>> d3.plot_args_children=[':r']
-    >>> h = d3.plot()
+
+    h = d3.plot()
 
     '''