Drop support for python 3.6

.github/workflows/tests.yml

@@ -60,8 +60,6 @@ jobs:
         os: [ubuntu-latest, windows-latest, macos-latest]
         python_version: ["3.11"]
         include:
-          - os: ubuntu-20.04
-            python_version: "3.6"
           - os: windows-latest
             python_version: "3.7"
           - os: macos-latest
@@ -95,7 +93,6 @@ jobs:
       - name: Run mypy
         run: |
           python -m mypy spacy
-        if: matrix.python_version != '3.6'
 
       - name: Delete source directory and .egg-info
         run: |

build-constraints.txt

@@ -1,6 +1,6 @@
-# build version constraints for use with wheelwright + multibuild
-numpy==1.15.0; python_version<='3.7' and platform_machine!='aarch64'
-numpy==1.19.2; python_version<='3.7' and platform_machine=='aarch64'
+# build version constraints for use with wheelwright
+numpy==1.15.0; python_version=='3.7' and platform_machine!='aarch64'
+numpy==1.19.2; python_version=='3.7' and platform_machine=='aarch64'
 numpy==1.17.3; python_version=='3.8' and platform_machine!='aarch64'
 numpy==1.19.2; python_version=='3.8' and platform_machine=='aarch64'
 numpy>=1.25.0; python_version>='3.9'

requirements.txt

@@ -33,12 +33,11 @@ pytest-timeout>=1.3.0,<2.0.0
 mock>=2.0.0,<3.0.0
 flake8>=3.8.0,<6.0.0
 hypothesis>=3.27.0,<7.0.0
-mypy>=0.990,<1.1.0; platform_machine != "aarch64" and python_version >= "3.7"
-types-dataclasses>=0.1.3; python_version < "3.7"
+mypy>=0.990,<1.1.0; platform_machine != "aarch64"
 types-mock>=0.1.1
 types-setuptools>=57.0.0
 types-requests
 types-setuptools>=57.0.0
 black==22.3.0
-cython-lint>=0.15.0; python_version >= "3.7"
+cython-lint>=0.15.0
 isort>=5.0,<6.0

setup.cfg

@@ -17,7 +17,6 @@ classifiers =
     Operating System :: Microsoft :: Windows
     Programming Language :: Cython
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -31,15 +30,13 @@ project_urls =
 [options]
 zip_safe = false
 include_package_data = true
-python_requires = >=3.6
+python_requires = >=3.7
 # NOTE: This section is superseded by pyproject.toml and will be removed in
 # spaCy v4
 setup_requires =
     cython>=0.25,<3.0
-    # The newest supported pip for python 3.6 has bugs related to markers in
-    # this section, so this does not contain the same constraints as
-    # pyproject.toml
-    numpy>=1.15.0
+    numpy>=1.15.0; python_version < "3.9"
+    numpy>=1.19.0; python_version >= "3.9"
     # We also need our Cython packages here to compile against
     cymem>=2.0.2,<2.1.0
     preshed>=3.0.2,<3.1.0