Uninstall postgis and gdal too...

dstansby · web-flow · commit e58b4730581c · 2018-10-24T14:50:47.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -103,7 +103,7 @@ before_install: |
     export PATH=/usr/lib/ccache:$PATH
   else
     ci/silence brew update
-    brew uninstall numpy
+    brew uninstall numpy gdal postgis
     brew upgrade python
     brew install ffmpeg imagemagick mplayer ccache
     hash -r
