travis: fix issue with bash

.travis.yml

@@ -33,22 +33,22 @@ jobs:
     - dist: xenial
       env: 
         - BUILD_WITH_COLLISION_SUPPORT=OFF
-        - TRAVIS_PYTHON_VERSION=2.7
+        - TRAVIS_PYTHON_VERSION=27
       python: 2.7
     - dist: trusty 
       env: 
         - BUILD_WITH_COLLISION_SUPPORT=ON
-        - TRAVIS_PYTHON_VERSION=2.7
+        - TRAVIS_PYTHON_VERSION=27
       python: 2.7
     - dist: xenial
       env: 
         - BUILD_WITH_COLLISION_SUPPORT=ON
-        - TRAVIS_PYTHON_VERSION=2.7
+        - TRAVIS_PYTHON_VERSION=27
       python: 2.7
     - dist: xenial
       env: 
         - BUILD_WITH_COLLISION_SUPPORT=ON
-        - TRAVIS_PYTHON_VERSION=3.5
+        - TRAVIS_PYTHON_VERSION=35
       python: 3.5
 
 allow_failures:

travis_custom/custom_before_install

@@ -17,7 +17,7 @@ export APT_DEPENDENCIES="doxygen libboost-system-dev libboost-test-dev libboost-
 
 # Add Python dependency
 echo "TRAVIS_PYTHON_VERSION=$TRAVIS_PYTHON_VERSION"
-if [[ $TRAVIS_PYTHON_VERSION -gt 3 ]]; then
+if [[ $TRAVIS_PYTHON_VERSION -gt 30 ]]; then
   export APT_DEPENDENCIES=$APT_DEPENDENCIES" libboost-python-dev robotpkg-py35-eigenpy python3.5-dev python-numpy"
 else
   export APT_DEPENDENCIES=$APT_DEPENDENCIES" libboost-python-dev robotpkg-py27-eigenpy python2.7-dev python-numpy"

travis_custom/custom_build

@@ -6,7 +6,7 @@ set -x
 set -v
 
 # Setup environment variables.
-if [[ $TRAVIS_PYTHON_VERSION -gt 3 ]]; then
+if [[ $TRAVIS_PYTHON_VERSION -gt 30 ]]; then
   export CMAKE_ADDITIONAL_OPTIONS=" ${CMAKE_ADDITIONAL_OPTIONS} -DPYTHON_EXECUTABLE=$(which python3)"
 else
   export CMAKE_ADDITIONAL_OPTIONS=" ${CMAKE_ADDITIONAL_OPTIONS} -DPYTHON_EXECUTABLE=$(which python2)"