Migration to graphql-core-v3

.travis.yml

@@ -1,17 +1,13 @@
 language: python
 sudo: false
 python:
-  - 2.7
-  - 3.5
   - 3.6
   - 3.7
   - 3.8
   - 3.9-dev
-  - pypy
-  - pypy3
 matrix:
   include:
-    - python: 3.6
+    - python: 3.7
       env: TOXENV=flake8,black,import-order,mypy,manifest
 cache: pip
 install: pip install tox-travis codecov

README.md

@@ -35,6 +35,8 @@ The `graphql_server` package provides these public helper functions:
  * `json_encode`
  * `json_encode_pretty`
 
+**NOTE:** the `json_encode_pretty` is kept as backward compatibility change as it uses `json_encode` with `pretty` parameter set to `True`.
+
 All functions in the package are annotated with type hints and docstrings,
 and you can build HTML documentation from these using `bin/build_docs`.