Upgrade pip before installing link checker

jenshnielsen · jenshnielsen · commit dbfbb3d0e147 · 2016-01-19T11:22:31.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -115,8 +115,10 @@ script:
       python make.py html --small --warningsaserrors
       # We don't build the LaTeX docs here, so linkchecker will complain
       touch build/html/Matplotlib.pdf
+      # Linkchecker only works with python 2.7 for the time being
       deactivate
       source ~/virtualenv/python2.7/bin/activate
+      pip install pip --upgrade
       pip install linkchecker
       linkchecker build/html/index.html
     fi
