Drop Python 3.6

Author: Zac-HD

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9, "pypy-3.6", "pypy-3.7"]
+        python-version: [3.7, 3.8, 3.9, "pypy-3.7"]
       fail-fast: false
     steps:
     - uses: actions/checkout@v2

CHANGELOG.md

@@ -4,6 +4,8 @@
 - reduced filtering for object keys (#88)
 - updated to `jsonschema >= 4.0.0` (#89);
   though support for `Draft 2019-09` and `2020-12` will take longer
+- requires Python 3.7+, a few months ahead of the
+  [3.6 end of life date](https://www.python.org/dev/peps/pep-0494/#lifespan)
 
 #### 0.20.1 - 2021-06-03
 - improved handling for fractional `multipleOf` values

setup.py

@@ -31,15 +31,14 @@ def local_file(name: str) -> str:
     description="Generate test data from JSON schemata with Hypothesis",
     zip_safe=False,
     install_requires=["hypothesis>=5.3.0", "jsonschema>=4.0.0"],
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     classifiers=[
         "Development Status :: 4 - Beta",
         "Framework :: Hypothesis",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",