Use a container and pip cache

Use container and pip cache

Add the sudo calls back in

Try removing sudo and the tk install

Skip show() call in novice doctest

Try not building docs and no libqt4-dev

Try the optional installs right away

Do not install PyQt4 or imread

Try without libfreeimage

Try and install libfreeimage outside of root

Another attempt at libfreeimage

Yet another attempt at libfreeimage

Use the travis whitelist

Try adding the sudo command

Try and build the docs

Install scikit-image first

Restore full build functionality

Fix whitespace

Remove unused tk import

.travis.yml

@@ -6,6 +6,15 @@
 # See doc/travis_notes.txt for some guidelines
 
 language: python
+sudo: false
+cache: pip
+addons:
+  apt:
+    packages:
+    - libfreeimage3
+    - texlive 
+    - texlive-latex-extra 
+    - dvipng
 
 notifications:
   webhooks:

skimage/novice/__init__.py

@@ -29,7 +29,7 @@ We can create a Picture object open opening an image file:
 
 We can display pictures (after running this command, close the window to access the prompt again):
 
->>> picture.show()
+>>> picture.show()  # doctest: +SKIP
 
 Pictures know their format:
 
@@ -50,7 +50,7 @@ True
 
 As a reminder, we can preview the picture with our earlier command:
 
->>> picture.show()
+>>> picture.show()  # doctest: +SKIP
 
 Changing `size` resizes the picture.
 
@@ -58,7 +58,7 @@ Changing `size` resizes the picture.
 
 We can preview the changes we made to the picture with our earlier command:
 
->>> picture.show()
+>>> picture.show()  # doctest: +SKIP
 
 You can iterate over pixels, which have RGB values between 0 and 255,
 and know their location in the picture.

tools/travis_before_install.sh

@@ -46,10 +46,6 @@ source ~/venv/bin/activate
 
 retry pip install wheel flake8 coveralls nose
 
-# install system tk for matplotlib
-sudo apt-get install python-tk
-
-
 # on Python 3.2, use matplotlib 1.3.1
 if [[ $TRAVIS_PYTHON_VERSION == 3.2 ]]; then
     sed -i 's/matplotlib>=.*/matplotlib==1.3.1/g' requirements.txt
@@ -63,10 +59,6 @@ retry pip install $WHEELHOUSE $WHEELS
 
 retry pip install -r requirements.txt
 
-# clean up disk space
-sudo apt-get clean
-sudo rm -rf /tmp/*
-
 
 section () {
     echo -en "travis_fold:start:$1\r"

tools/travis_script.sh

@@ -9,7 +9,6 @@ section_end "Test.with.min.requirements"
 
 section "Build.docs"
 if [[ ($PY != 2.6) && ($PY != 3.2) ]]; then
-    sudo apt-get install -qq texlive texlive-latex-extra dvipng
     make html
 fi
 section_end "Build.docs"
@@ -22,33 +21,12 @@ section_end "Flake8.test"
 section "Install.optional.dependencies"
 
 # Install Qt and then update the Matplotlib settings
-if [[ $PY == 2.7* ]]; then
-    sudo apt-get install -q python-qt4
+retry pip install -q PySide $WHEELHOUSE
+python ~/venv/bin/pyside_postinstall.py -install
 
-    # http://stackoverflow.com/a/9716100
-    LIBS=( PyQt4 sip.so )
-
-    VAR=( $(which -a python$PY) )
-
-    GET_PYTHON_LIB_CMD="from distutils.sysconfig import get_python_lib; print (get_python_lib())"
-    LIB_VIRTUALENV_PATH=$(python -c "$GET_PYTHON_LIB_CMD")
-    LIB_SYSTEM_PATH=$(${VAR[-1]} -c "$GET_PYTHON_LIB_CMD")
-
-    for LIB in ${LIBS[@]}
-    do
-        sudo ln -sf $LIB_SYSTEM_PATH/$LIB $LIB_VIRTUALENV_PATH/$LIB
-    done
-
-else
-    sudo apt-get install -q libqt4-dev
-    retry pip install -q PySide $WHEELHOUSE
-    python ~/venv/bin/pyside_postinstall.py -install
-fi
-
-# imread does NOT support py3.2
+# Install imread from wheelhouse if available (not 3.2)
 if [[ $PY != 3.2 ]]; then
-    sudo apt-get install -q libtiff4-dev libwebp-dev libpng12-dev xcftools
-    retry pip  install -q imread
+    retry pip install -q $WHEELHOUSE
 fi
 
 # Install SimpleITK from wheelhouse if available (not 3.2 or 3.4)
@@ -58,7 +36,6 @@ else
     retry pip  install -q SimpleITK $WHEELHOUSE
 fi
 
-sudo apt-get install -q libfreeimage3
 retry pip install -q astropy $WHEELHOUSE
 
 if [[ $PY == 2.* ]]; then