Add python 2.7 tests

Author: mayeut

.circleci/config.yml

@@ -21,6 +21,9 @@ references:
             echo "MANYLINUX_PYTHON [${MANYLINUX_PYTHON}]"
             /opt/python/${MANYLINUX_PYTHON}/bin/pip install scikit-ci
             /opt/python/${MANYLINUX_PYTHON}/bin/ci
+            if [ "${UPLOAD_SDIST}" == "tests-only" ]; then
+              rm -f ./dist/*
+            fi
       - persist_to_workspace:
           root: ./
           paths:
@@ -51,6 +54,10 @@ jobs:
   manylinux-x86_cp37-cp37m:
     <<: *x86_build_job
 
+  # python 2.7 tests
+  manylinux-x64_cp27-cp27mu_tests-only:
+    <<: *x64_build_job
+
   deploy-master:
     docker:
       - image: circleci/python:3.7.0-stretch
@@ -89,12 +96,18 @@ workflows:
       - manylinux-x86_cp37-cp37m:
           <<: *no_filters
 
+      # python 2.7 tests
+      - manylinux-x64_cp27-cp27mu_tests-only:
+          <<: *no_filters
+
       - deploy-master:
           requires:
             # x64
             - manylinux-x64_cp37-cp37m_upload-sdist
             # x86
             - manylinux-x86_cp37-cp37m
+            # python 2.7 test
+            - manylinux-x64_cp27-cp27mu_tests-only
           filters:
             branches:
               only: master
@@ -104,6 +117,8 @@ workflows:
             - manylinux-x64_cp37-cp37m_upload-sdist
             # x86
             - manylinux-x86_cp37-cp37m
+            # python 2.7 test
+            - manylinux-x64_cp27-cp27mu_tests-only
           filters:
             tags:
               only: /^[0-9]+(\.[0-9]+)*(\.post[0-9]+)?$/