CI: Moving CircleCI build to Travis (pandas-dev#24449)

Author: datapythonista

.circleci/config.yml

@@ -43,16 +43,23 @@ matrix:
         apt:
           packages:
           - language-pack-zh-hans
+
     - dist: trusty
       env:
         - JOB="2.7" ENV_FILE="ci/deps/travis-27.yaml" PATTERN="not slow"
       addons:
         apt:
           packages:
           - python-gtk2
+
+    - dist: trusty
+      env:
+        - JOB="3.6, locale" ENV_FILE="ci/deps/travis-36-locale.yaml" PATTERN="not slow and not network" LOCALE_OVERRIDE="zh_CN.UTF-8"
+
     - dist: trusty
       env:
         - JOB="3.6, coverage" ENV_FILE="ci/deps/travis-36.yaml" PATTERN="not slow and not network" PANDAS_TESTING_MODE="deprecate" COVERAGE=true
+
     - dist: trusty
       env:
         - JOB="3.7, NumPy dev" ENV_FILE="ci/deps/travis-37-numpydev.yaml" PATTERN="not slow and not network" TEST_ARGS="-W error" PANDAS_TESTING_MODE="deprecate"

.travis.yml

@@ -45,14 +45,6 @@
     </a>
   </td>
 </tr>
-<tr>
-  <td></td>
-  <td>
-    <a href="https://circleci.com/gh/pandas-dev/pandas">
-    <img src="https://circleci.com/gh/circleci/mongofinil/tree/master.svg?style=shield&circle-token=223d8cafa7b02902c3e150242520af8944e34671" alt="circleci build status" />
-    </a>
-  </td>
-</tr>
 <tr>
   <td></td>
   <td>

README.md

@@ -686,13 +686,13 @@ See :ref:`contributing.warnings` for more.
 Testing With Continuous Integration
 -----------------------------------
 
-The *pandas* test suite will run automatically on `Travis-CI <https://travis-ci.org/>`__,
-`Azure Pipelines <https://azure.microsoft.com/en-us/services/devops/pipelines/>`__,
-and `Circle CI <https://circleci.com/>`__ continuous integration services, once your pull request is submitted.
+The *pandas* test suite will run automatically on `Travis-CI <https://travis-ci.org/>`__ and
+`Azure Pipelines <https://azure.microsoft.com/en-us/services/devops/pipelines/>`__
+continuous integration services, once your pull request is submitted.
 However, if you wish to run the test suite on a branch prior to submitting the pull request,
 then the continuous integration services need to be hooked to your GitHub repository. Instructions are here
-for `Travis-CI <http://about.travis-ci.org/docs/user/getting-started/>`__,
-`Azure Pipelines <https://docs.microsoft.com/en-us/azure/devops/pipelines/>`__, and `CircleCI <https://circleci.com/>`__.
+for `Travis-CI <http://about.travis-ci.org/docs/user/getting-started/>`__ and
+`Azure Pipelines <https://docs.microsoft.com/en-us/azure/devops/pipelines/>`__.
 
 A pull-request will be considered for merging when you have an all 'green' build. If any tests are failing,
 then you will get a red 'X', where you can click through to see the individual failed tests.
@@ -704,8 +704,7 @@ This is an example of a green build.
 
    Each time you push to *your* fork, a *new* run of the tests will be triggered on the CI.
    You can enable the auto-cancel feature, which removes any non-currently-running tests for that same pull-request, for
-   `Travis-CI here <https://docs.travis-ci.com/user/customizing-the-build/#Building-only-the-latest-commit>`__ and
-   for `CircleCI here <https://circleci.com/changelog-legacy/#option-to-auto-cancel-redundant-builds>`__.
+   `Travis-CI here <https://docs.travis-ci.com/user/customizing-the-build/#Building-only-the-latest-commit>`__.
 
 .. _contributing.tdd: