Drop support for EOL Python 3.7

Author: dbowring

.travis.yml

@@ -4,8 +4,6 @@ cache: pip
 
 matrix:
   include:
-    - name: "Python 3.7 on Linux"
-      python: 3.7
     - name: "Python 3.8 on Linux"
       dist: xenial
       python: 3.8
@@ -14,24 +12,6 @@ matrix:
       python: nightly
     - name: "Pypy 3 on Linux"
       python: pypy3
-    - name: "Python 3.7 on older macOS"
-      os: osx
-      osx_image: xcode9.4
-      language: shell
-      env: TOXENV=py37
-      before_install:
-        - sw_vers
-        - python3 --version
-        - pip3 --version
-    - name: "Python 3.7 on macOS"
-      os: osx
-      osx_image: xcode11
-      language: shell
-      env: TOXENV=py37
-      before_install:
-        - sw_vers
-        - python3 --version
-        - pip3 --version
   allow_failures:
     - python: nightly
     - python: pypy3

setup.py

@@ -66,7 +66,6 @@ def find_version(*file_paths):
         "Topic :: Software Development :: Libraries :: Python Modules",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",

tox.ini

@@ -5,7 +5,7 @@
 
 [tox]
 envlist =
-    py{38,39,310,py,py3}, doc
+    py{38,39,310,py3}, doc
 skip_missing_interpreters =
     True