Updates to requirements and drop Py3.5.

azure-pipelines.yml

@@ -1,6 +1,7 @@
 variables:
   CIBW_TEST_COMMAND: "pip install -r {project}/requirements/tests.txt && pytest --pyargs uarray"
   CIBW_BUILD: cp3?-* pp3?-*
+  CIBW_SKIP: cp35-* pp35-*
   CIBW_BEFORE_BUILD: "git clean -xdf && git reset --hard HEAD"
 
 jobs:

ci/azure-steps.yml

@@ -2,7 +2,7 @@ steps:
 - task: UsePythonVersion@0
 - bash: |
     python -m pip install --upgrade pip
-    pip install cibuildwheel==1.6.1
+    pip install cibuildwheel==1.6.3
     cibuildwheel --output-dir wheelhouse .
 - task: PublishBuildArtifacts@1
   inputs: {pathtoPublish: 'wheelhouse'}

ci/azure-test-scipy-fft.yml

@@ -1,5 +1,5 @@
 steps:
-- {task: UsePythonVersion@0, inputs: {versionSpec: '3.5'}}
+- {task: UsePythonVersion@0, inputs: {versionSpec: '3.6'}}
 - bash: |
     python -m pip install "scipy==1.4"
     python -m pip install pytest

setup.py

@@ -85,9 +85,10 @@ def build_extension(self, ext):
         "License :: OSI Approved :: BSD License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3 :: Only",
         "Intended Audience :: Developers",
         "Intended Audience :: Science/Research",
@@ -97,6 +98,6 @@ def build_extension(self, ext):
         "Source": "https://github.com/Quansight-Labs/uarray/",
         "Tracker": "https://github.com/Quansight-Labs/uarray/issues",
     },
-    python_requires=">=3.5, <4",
+    python_requires=">=3.6, <4",
     ext_modules=extensions,
 )