Up correct python and pip call

.gitlab-ci.yml

@@ -29,7 +29,7 @@ build:
   tags:
     - docker
   script:
-    - python setup.py install
+    - python3 setup.py install
 
 # Tests 
 test:
@@ -37,7 +37,7 @@ test:
   tags:
     - docker
   script:
-    - python setup.py test
+    - python3 setup.py test
   artifacts:
     when: always
     untracked: true
@@ -51,7 +51,7 @@ dist:
   tags:
     - docker
   script:
-    - pip install -e .
+    - pip3 install -e .
     - nosetests
   artifacts:
     when: always