CI/CD: Only routinely test against the development version of PyInstaller.

Given that everything is pinned, there is very little point in testing
stable PyInstaller.

Author: bwoodsend

.github/workflows/macos-test.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.6, 3.7, 3.8, 3.9]
-        pyinstaller: [PyInstaller, "https://github.com/pyinstaller/pyinstaller/archive/develop.zip"]
+        pyinstaller: ["https://github.com/pyinstaller/pyinstaller/archive/develop.zip"]
       fail-fast: false
     steps:
       - uses: actions/checkout@v2

.travis.yml

@@ -15,27 +15,10 @@ services:
 jobs:
   fast_finish: true
   include:
-    - &test
-      stage: PyInstaller stable release
-      python: 3.9
-      install:
-        # Upgrade to the latest pip.
-        - python -m pip install -U pip setuptools wheel
 
-        # Install hooks-contrib
-        - pip install -e .
-        - pip install -r requirements-test-libraries.txt
-
-        # Install PyInstaller
-        - pip install pyinstaller
-      script: |
-        pyi_version="$(python -m PyInstaller --version)"
-        if [ "$pyi_version" != *"3.6"* ]; then
-          python -m PyInstaller.utils.run_tests -c pytest.ini
-        fi
-
-    - <<: *test
+    - &test
       stage: PyInstaller development version
+      python: 3.9
       install: &install-develop
         # Upgrade to the latest pip.
         - python -m pip install -U pip setuptools wheel
@@ -47,6 +30,9 @@ jobs:
         # Install PyInstaller
         - pip install https://github.com/pyinstaller/pyinstaller/archive/develop.tar.gz
 
+      script: |
+        python -m PyInstaller.utils.run_tests -c pytest.ini
+
     - <<: *test
       python: 3.8
     - <<: *test

appveyor.yml

@@ -9,29 +9,6 @@ environment:
   APPVEYOR_SAVE_CACHE_ON_ERROR: true
 
   matrix:
-    - PYTHON: C:\Python39-x64
-      PYTHON_VERSION: "3.9"
-      PYTHON_ARCH: 64
-      INSTALL_URL: pyinstaller  # INSTALL_URL is passed straight to pip with `pip install INSTALL_URL`.
-      USE_DEV: "False"
-
-    - PYTHON: C:\Python38-x64
-      PYTHON_VERSION: "3.8"
-      PYTHON_ARCH: 64
-      INSTALL_URL: pyinstaller  # INSTALL_URL is passed straight to pip with `pip install INSTALL_URL`.
-      USE_DEV: "False"
-
-    - PYTHON: C:\Python37-x64
-      PYTHON_VERSION: "3.7"
-      PYTHON_ARCH: 64
-      INSTALL_URL: pyinstaller  # INSTALL_URL is passed straight to pip with `pip install INSTALL_URL`.
-      USE_DEV: "False"
-
-    - PYTHON: C:\Python36-x64
-      PYTHON_VERSION: "3.6"
-      PYTHON_ARCH: 64
-      INSTALL_URL: pyinstaller
-      USE_DEV: "False"
 
     - PYTHON: C:\Python39-x64
       PYTHON_VERSION: "3.9"