travis: Fix vici Python tests when using Clang

For some reason the clang binary that's installed in an uncommon
directory could not be found anymore when installing packages via pip for
the last couple of builds. While the directory is obviously contained in PATH,
using `sudo -E` didn't help. So we now install the Python packages in the
user's home directory to avoid having to use sudo.

diff --git a/scripts/test.sh b/scripts/test.sh
index f8ffdced39ec2727e160af13bd84f7251bcd0349..dab45b458dea5557a04d6171fd65957cfdf59b87 100755 (executable)
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -177,7 +177,7 @@ if test "$1" = "deps"; then
 fi
 
 if test "$1" = "pydeps"; then
-       test -z "$PYDEPS" || sudo pip -q install $PYDEPS
+       test -z "$PYDEPS" || pip -q install --user $PYDEPS
        exit $?
 fi