Fix CI.

.gitlab-ci.yml

+stages:
+  - test
+  - doc
+  - release
+
 before_script:
   - apt-get update -qq && apt-get install -y -qq libhdf5-dev
   - pip install -U pip setuptools wheel numpy
   - pip install .
 
 test:
-    image: python:3.7.0
+    image: docker.km3net.de/base/python:3
+    stage: test
     script:
         - echo narf
 
 pages:
-    image: python:3.7.0
+    image: docker.km3net.de/base/python:3
+    stage: doc
     script:
         - cd docs && make html
         - mv _build/html/ ../public/
@@ -19,6 +26,7 @@ pages:
 
 pypi:
     image: docker.km3net.de/base/python:3
+    stage: release
     cache: {}
     script:
         - pip install -U twine

requirements.txt

@@ -4,3 +4,4 @@ matplotlib
 km3pipe
 docopt
 toml
+setuptools_scm

setup.py

@@ -21,6 +21,12 @@ setup(
         'write_to': 'orcasong/version.txt',
         'tag_regex': r'^(?P<prefix>v)?(?P<version>[^\+]+)(?P<suffix>.*)?$',
     },
+    classifiers=[
+        'Development Status :: 3 - Alpha',
+        'Intended Audience :: Developers',
+        'Intended Audience :: Science/Research',
+        'Programming Language :: Python',
+    ]
 
 )